diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1c32a9e84..f85f20b0a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -38,7 +38,7 @@ jobs:
           rustup component add clippy
       - uses: Swatinem/rust-cache@v2
       - name: "Clippy"
-        run: cargo clippy --workspace --all-targets --all-features -- -D warnings
+        run: cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
 
   cargo-test:
     strategy:
diff --git a/Cargo.lock b/Cargo.lock
index 0cfd0118b..77a309714 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -557,22 +557,21 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "702fc72eb24e5a1e48ce58027a675bc24edd52096d5397d4aea7c6dd9eca0bd1"
 
+[[package]]
+name = "cmake"
+version = "0.1.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31c789563b815f77f4250caee12365734369f942439b7defd71e18a48197130"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
-[[package]]
-name = "colored"
-version = "2.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbf2150cce219b664a8a70df7a1f933836724b503f8a413af9365b4dcc4d90b8"
-dependencies = [
- "lazy_static",
- "windows-sys 0.48.0",
-]
-
 [[package]]
 name = "configparser"
 version = "3.0.4"
@@ -926,6 +925,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46303f565772937ffe1d394a4fac6f411c6013172fadde9dcdb1e147a086940e"
 dependencies = [
  "crc32fast",
+ "libz-ng-sys",
  "miniz_oxide",
 ]
 
@@ -1659,6 +1659,16 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "libz-ng-sys"
+version = "1.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81157dde2fd4ad2b45ea3a4bb47b8193b52a6346b678840d91d80d3c2cd166c5"
+dependencies = [
+ "cmake",
+ "libc",
+]
+
 [[package]]
 name = "libz-sys"
 version = "1.1.14"
@@ -2250,7 +2260,7 @@ dependencies = [
 [[package]]
 name = "pubgrub"
 version = "0.2.1"
-source = "git+https://github.com/zanieb/pubgrub?rev=78b8add6942766e5fb070bbda1de570e93d6399f#78b8add6942766e5fb070bbda1de570e93d6399f"
+source = "git+https://github.com/zanieb/pubgrub?rev=866c0f2a87fee1e8abe804d40a2ee934de0973d7#866c0f2a87fee1e8abe804d40a2ee934de0973d7"
 dependencies = [
  "indexmap 2.1.0",
  "log",
@@ -2319,7 +2329,6 @@ dependencies = [
  "bitflags 2.4.1",
  "chrono",
  "clap",
- "colored",
  "distribution-filename",
  "distribution-types",
  "fs-err",
@@ -2333,6 +2342,7 @@ dependencies = [
  "itertools 0.12.0",
  "miette",
  "mimalloc",
+ "owo-colors",
  "pep440_rs 0.3.12",
  "pep508_rs",
  "platform-host",
@@ -2363,6 +2373,7 @@ dependencies = [
  "tokio",
  "toml",
  "tracing",
+ "tracing-durations-export",
  "tracing-subscriber",
  "tracing-tree",
  "url",
@@ -2417,7 +2428,6 @@ dependencies = [
  "anyhow",
  "chrono",
  "clap",
- "colored",
  "distribution-filename",
  "distribution-types",
  "fs-err",
@@ -2427,6 +2437,7 @@ dependencies = [
  "install-wheel-rs",
  "itertools 0.12.0",
  "mimalloc",
+ "owo-colors",
  "pep440_rs 0.3.12",
  "pep508_rs",
  "petgraph",
@@ -2448,6 +2459,7 @@ dependencies = [
  "tikv-jemallocator",
  "tokio",
  "tracing",
+ "tracing-durations-export",
  "tracing-indicatif",
  "tracing-subscriber",
  "url",
@@ -2631,12 +2643,12 @@ dependencies = [
 name = "puffin-resolver"
 version = "0.0.1"
 dependencies = [
+ "anstream",
  "anyhow",
  "bitflags 2.4.1",
  "cache-key",
  "chrono",
  "clap",
- "colored",
  "derivative",
  "distribution-filename",
  "distribution-types",
@@ -2648,6 +2660,7 @@ dependencies = [
  "install-wheel-rs",
  "itertools 0.12.0",
  "once_cell",
+ "owo-colors",
  "pep440_rs 0.3.12",
  "pep508_rs",
  "petgraph",
@@ -2697,8 +2710,8 @@ name = "puffin-warnings"
 version = "0.0.1"
 dependencies = [
  "anstream",
- "colored",
  "once_cell",
+ "owo-colors",
  "rustc-hash",
 ]
 
@@ -3451,6 +3464,12 @@ dependencies = [
  "is-terminal",
 ]
 
+[[package]]
+name = "svg"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d703a3635418d4e4d0e410009ddbfb65047ef9468b1d29afd3b057a5bc4c217"
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -3860,6 +3879,24 @@ dependencies = [
  "valuable",
 ]
 
+[[package]]
+name = "tracing-durations-export"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d6bb8898f56f636911130c78cc528338a2bb0426bdfb5a8fb523f98fc8da46d"
+dependencies = [
+ "anyhow",
+ "fs-err",
+ "itertools 0.12.0",
+ "once_cell",
+ "rustc-hash",
+ "serde",
+ "serde_json",
+ "svg",
+ "tracing",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-indicatif"
 version = "0.3.6"
diff --git a/Cargo.toml b/Cargo.toml
index cf840ad22..f74838c44 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,14 +24,16 @@ camino = { version = "1.1.6", features = ["serde1"] }
 cargo-util = { version = "0.2.8" }
 chrono = { version = "0.4.31" }
 clap = { version = "4.4.13" }
-colored = { version = "2.1.0" }
 configparser = { version = "3.0.4" }
 csv = { version = "1.3.0" }
 data-encoding = { version = "2.5.0" }
 derivative = { version = "2.2.0" }
 directories = { version = "5.0.1" }
 dirs = { version = "5.0.1" }
-flate2 = { version = "1.0.28" }
+# This tells flate2 (and all libraries that depend on it, including async_compression
+# and async_zip) to use zlib-ng, which about 2x faster than the default flate2 backend
+# at decompression. See https://github.com/rust-lang/flate2-rs#backends
+flate2 = { version = "1.0.28", features = ["zlib-ng"], default-features = false }
 fs-err = { version = "2.11.0" }
 fs2 = { version = "0.4.3" }
 futures = { version = "0.3.30" }
@@ -49,10 +51,11 @@ mailparse = { version = "0.14.0" }
 # For additional textwrap options: https://github.com/zkat/miette/pull/321, https://github.com/zkat/miette/pull/328
 miette =  { git = "https://github.com/zkat/miette.git", rev = "b0744462adbbfbb6d845f382db36be883c7f3c45" }
 once_cell = { version = "1.19.0" }
+owo-colors = { version = "3.5.0" }
 petgraph = { version = "0.6.4" }
 platform-info = { version = "2.0.2" }
 plist = { version = "1.6.0" }
-pubgrub = { git = "https://github.com/zanieb/pubgrub", rev = "78b8add6942766e5fb070bbda1de570e93d6399f" }
+pubgrub = { git = "https://github.com/zanieb/pubgrub", rev = "866c0f2a87fee1e8abe804d40a2ee934de0973d7" }
 pyo3 = { version = "0.20.2" }
 pyo3-log = { version = "0.9.0"}
 pyproject-toml = { version = "0.8.1" }
@@ -81,6 +84,7 @@ tokio-util = { version = "0.7.10", features = ["compat"] }
 toml = { version = "0.8.8" }
 toml_edit = { version = "0.21.0" }
 tracing = { version = "0.1.40" }
+tracing-durations-export = { version = "0.1.0", features = ["plot"] }
 tracing-indicatif = { version = "0.3.6" }
 tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
 tracing-tree = { version = "0.3.0" }
diff --git a/crates/distribution-types/src/cached.rs b/crates/distribution-types/src/cached.rs
index f0e4a0ed6..a37d510d6 100644
--- a/crates/distribution-types/src/cached.rs
+++ b/crates/distribution-types/src/cached.rs
@@ -141,23 +141,16 @@ pub struct CachedWheel {
 
 impl CachedWheel {
     /// Try to parse a distribution from a cached directory name (like `typing-extensions-4.8.0-py3-none-any`).
-    pub fn from_path(path: &Path) -> Result<Option<Self>> {
-        let Some(file_name) = path.file_name() else {
-            return Ok(None);
-        };
-        let Some(file_name) = file_name.to_str() else {
-            return Ok(None);
-        };
-        let Ok(filename) = WheelFilename::from_stem(file_name) else {
-            return Ok(None);
-        };
+    pub fn from_path(path: &Path) -> Option<Self> {
+        let filename = path.file_name()?.to_str()?;
+        let filename = WheelFilename::from_stem(filename).ok()?;
         if path.is_file() {
-            return Ok(None);
+            return None;
         }
 
         let path = path.to_path_buf();
 
-        Ok(Some(Self { filename, path }))
+        Some(Self { filename, path })
     }
 
     /// Convert a [`CachedWheel`] into a [`CachedRegistryDist`].
diff --git a/crates/distribution-types/src/file.rs b/crates/distribution-types/src/file.rs
index 1e8a1b3d3..69ca46b9d 100644
--- a/crates/distribution-types/src/file.rs
+++ b/crates/distribution-types/src/file.rs
@@ -1,7 +1,7 @@
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
 
-use pep440_rs::VersionSpecifiers;
+use pep440_rs::{VersionSpecifiers, VersionSpecifiersParseError};
 use pypi_types::{DistInfoMetadata, Hashes, Yanked};
 
 /// Internal analog to [`pypi_types::File`].
@@ -11,23 +11,26 @@ pub struct File {
     pub filename: String,
     pub hashes: Hashes,
     pub requires_python: Option<VersionSpecifiers>,
-    pub size: Option<usize>,
+    pub size: Option<u64>,
     pub upload_time: Option<DateTime<Utc>>,
     pub url: String,
     pub yanked: Option<Yanked>,
 }
 
-impl From<pypi_types::File> for File {
-    fn from(file: pypi_types::File) -> Self {
-        Self {
+impl TryFrom<pypi_types::File> for File {
+    type Error = VersionSpecifiersParseError;
+
+    /// `TryFrom` instead of `From` to filter out files with invalid requires python version specifiers
+    fn try_from(file: pypi_types::File) -> Result<Self, Self::Error> {
+        Ok(Self {
             dist_info_metadata: file.dist_info_metadata,
             filename: file.filename,
             hashes: file.hashes,
-            requires_python: file.requires_python,
+            requires_python: file.requires_python.transpose()?,
             size: file.size,
             upload_time: file.upload_time,
             url: file.url,
             yanked: file.yanked,
-        }
+        })
     }
 }
diff --git a/crates/distribution-types/src/lib.rs b/crates/distribution-types/src/lib.rs
index 64e7f167c..1e3a06082 100644
--- a/crates/distribution-types/src/lib.rs
+++ b/crates/distribution-types/src/lib.rs
@@ -506,7 +506,7 @@ impl RemoteSource for File {
         Ok(&self.filename)
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.size
     }
 }
@@ -518,7 +518,7 @@ impl RemoteSource for Url {
             .ok_or_else(|| Error::UrlFilename(self.clone()))
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         None
     }
 }
@@ -528,7 +528,7 @@ impl RemoteSource for RegistryBuiltDist {
         self.file.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.file.size()
     }
 }
@@ -538,7 +538,7 @@ impl RemoteSource for RegistrySourceDist {
         self.file.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.file.size()
     }
 }
@@ -548,7 +548,7 @@ impl RemoteSource for DirectUrlBuiltDist {
         self.url.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.url.size()
     }
 }
@@ -558,7 +558,7 @@ impl RemoteSource for DirectUrlSourceDist {
         self.url.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.url.size()
     }
 }
@@ -572,7 +572,7 @@ impl RemoteSource for GitSourceDist {
         })
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.url.size()
     }
 }
@@ -582,7 +582,7 @@ impl RemoteSource for PathBuiltDist {
         self.url.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.url.size()
     }
 }
@@ -592,7 +592,7 @@ impl RemoteSource for PathSourceDist {
         self.url.filename()
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         self.url.size()
     }
 }
@@ -607,7 +607,7 @@ impl RemoteSource for SourceDist {
         }
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         match self {
             Self::Registry(dist) => dist.size(),
             Self::DirectUrl(dist) => dist.size(),
@@ -626,7 +626,7 @@ impl RemoteSource for BuiltDist {
         }
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         match self {
             Self::Registry(dist) => dist.size(),
             Self::DirectUrl(dist) => dist.size(),
@@ -643,7 +643,7 @@ impl RemoteSource for Dist {
         }
     }
 
-    fn size(&self) -> Option<usize> {
+    fn size(&self) -> Option<u64> {
         match self {
             Self::Built(dist) => dist.size(),
             Self::Source(dist) => dist.size(),
diff --git a/crates/distribution-types/src/traits.rs b/crates/distribution-types/src/traits.rs
index 705b15e8c..e4a1ed2f6 100644
--- a/crates/distribution-types/src/traits.rs
+++ b/crates/distribution-types/src/traits.rs
@@ -53,7 +53,7 @@ pub trait RemoteSource {
     fn filename(&self) -> Result<&str, Error>;
 
     /// Return the size of the distribution, if known.
-    fn size(&self) -> Option<usize>;
+    fn size(&self) -> Option<u64>;
 }
 
 pub trait Identifier {
diff --git a/crates/gourgeist/Cargo.toml b/crates/gourgeist/Cargo.toml
index 6cdcc05f9..6f06028b0 100644
--- a/crates/gourgeist/Cargo.toml
+++ b/crates/gourgeist/Cargo.toml
@@ -23,7 +23,7 @@ puffin-interpreter = { path = "../puffin-interpreter" }
 
 anstream = { workspace = true }
 camino = { workspace = true }
-clap = { workspace = true }
+clap = { workspace = true, features = ["derive"] }
 fs-err = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
diff --git a/crates/install-wheel-rs/src/linker.rs b/crates/install-wheel-rs/src/linker.rs
index 162a6da72..ec016684e 100644
--- a/crates/install-wheel-rs/src/linker.rs
+++ b/crates/install-wheel-rs/src/linker.rs
@@ -6,7 +6,7 @@ use std::path::Path;
 use configparser::ini::Ini;
 use fs_err as fs;
 use fs_err::File;
-use tracing::{debug, info_span};
+use tracing::{debug, instrument};
 
 use pypi_types::DirectUrl;
 
@@ -24,6 +24,7 @@ use crate::{read_record_file, Error, Script};
 /// <https://packaging.python.org/en/latest/specifications/binary-distribution-format/#installing-a-wheel-distribution-1-0-py32-none-any-whl>
 ///
 /// Wheel 1.0: <https://www.python.org/dev/peps/pep-0427/>
+#[instrument(skip_all, fields(wheel = %wheel.as_ref().display()))]
 pub fn install_wheel(
     location: &InstallLocation<impl AsRef<Path>>,
     wheel: impl AsRef<Path>,
@@ -52,8 +53,6 @@ pub fn install_wheel(
     let metadata = dist_info_metadata(&dist_info_prefix, &wheel)?;
     let (name, _version) = parse_metadata(&dist_info_prefix, &metadata)?;
 
-    let _my_span = info_span!("install_wheel", name);
-
     // We're going step by step though
     // https://packaging.python.org/en/latest/specifications/binary-distribution-format/#installing-a-wheel-distribution-1-0-py32-none-any-whl
     // > 1.a Parse distribution-1.0.dist-info/WHEEL.
@@ -137,8 +136,9 @@ fn find_dist_info(path: impl AsRef<Path>) -> Result<String, Error> {
     // Iterate over `path` to find the `.dist-info` directory. It should be at the top-level.
     let Some(dist_info) = fs::read_dir(path.as_ref())?.find_map(|entry| {
         let entry = entry.ok()?;
-        let path = entry.path();
-        if path.is_dir() {
+        let file_type = entry.file_type().ok()?;
+        if file_type.is_dir() {
+            let path = entry.path();
             if path.extension().map_or(false, |ext| ext == "dist-info") {
                 Some(path)
             } else {
@@ -231,6 +231,7 @@ impl Default for LinkMode {
 
 impl LinkMode {
     /// Extract a wheel by linking all of its files into site packages.
+    #[instrument(skip_all)]
     pub fn link_wheel_files(
         self,
         site_packages: impl AsRef<Path>,
@@ -317,7 +318,9 @@ fn copy_wheel_files(
     // Walk over the directory.
     for entry in walkdir::WalkDir::new(&wheel) {
         let entry = entry?;
-        let relative = entry.path().strip_prefix(&wheel).unwrap();
+        let path = entry.path();
+
+        let relative = path.strip_prefix(&wheel).unwrap();
         let out_path = site_packages.as_ref().join(relative);
 
         if entry.file_type().is_dir() {
@@ -326,7 +329,7 @@ fn copy_wheel_files(
         }
 
         // Copy the file.
-        fs::copy(entry.path(), &out_path)?;
+        fs::copy(path, &out_path)?;
 
         #[cfg(unix)]
         {
@@ -370,7 +373,9 @@ fn hardlink_wheel_files(
     // Walk over the directory.
     for entry in walkdir::WalkDir::new(&wheel) {
         let entry = entry?;
-        let relative = entry.path().strip_prefix(&wheel).unwrap();
+        let path = entry.path();
+
+        let relative = path.strip_prefix(&wheel).unwrap();
         let out_path = site_packages.as_ref().join(relative);
 
         if entry.file_type().is_dir() {
@@ -379,8 +384,8 @@ fn hardlink_wheel_files(
         }
 
         // The `RECORD` file is modified during installation, so we copy it instead of hard-linking.
-        if entry.path().ends_with("RECORD") {
-            fs::copy(entry.path(), &out_path)?;
+        if path.ends_with("RECORD") {
+            fs::copy(path, &out_path)?;
             count += 1;
             continue;
         }
@@ -390,33 +395,33 @@ fn hardlink_wheel_files(
             Attempt::Initial => {
                 // Once https://github.com/rust-lang/rust/issues/86442 is stable, use that.
                 attempt = Attempt::Subsequent;
-                if let Err(err) = fs::hard_link(entry.path(), &out_path) {
+                if let Err(err) = fs::hard_link(path, &out_path) {
                     // If the file already exists, remove it and try again.
                     if err.kind() == std::io::ErrorKind::AlreadyExists {
                         fs::remove_file(&out_path)?;
-                        if fs::hard_link(entry.path(), &out_path).is_err() {
-                            fs::copy(entry.path(), &out_path)?;
+                        if fs::hard_link(path, &out_path).is_err() {
+                            fs::copy(path, &out_path)?;
                             attempt = Attempt::UseCopyFallback;
                         }
                     } else {
-                        fs::copy(entry.path(), &out_path)?;
+                        fs::copy(path, &out_path)?;
                         attempt = Attempt::UseCopyFallback;
                     }
                 }
             }
             Attempt::Subsequent => {
-                if let Err(err) = fs::hard_link(entry.path(), &out_path) {
+                if let Err(err) = fs::hard_link(path, &out_path) {
                     // If the file already exists, remove it and try again.
                     if err.kind() == std::io::ErrorKind::AlreadyExists {
                         fs::remove_file(&out_path)?;
-                        fs::hard_link(entry.path(), &out_path)?;
+                        fs::hard_link(path, &out_path)?;
                     } else {
                         return Err(err.into());
                     }
                 }
             }
             Attempt::UseCopyFallback => {
-                fs::copy(entry.path(), &out_path)?;
+                fs::copy(path, &out_path)?;
             }
         }
 
diff --git a/crates/install-wheel-rs/src/wheel.rs b/crates/install-wheel-rs/src/wheel.rs
index d5e0c009c..651c90138 100644
--- a/crates/install-wheel-rs/src/wheel.rs
+++ b/crates/install-wheel-rs/src/wheel.rs
@@ -1,5 +1,5 @@
 use std::collections::HashMap;
-use std::ffi::OsString;
+
 use std::io::{BufRead, BufReader, BufWriter, Cursor, Read, Seek, Write};
 use std::path::{Path, PathBuf};
 use std::process::{Command, ExitStatus, Stdio};
@@ -87,9 +87,8 @@ fn parse_scripts<R: Read + Seek>(
 ) -> Result<(Vec<Script>, Vec<Script>), Error> {
     let entry_points_path = format!("{dist_info_dir}/entry_points.txt");
     let entry_points_mapping = match archive.by_name(&entry_points_path) {
-        Ok(mut file) => {
-            let mut ini_text = String::new();
-            file.read_to_string(&mut ini_text)?;
+        Ok(file) => {
+            let ini_text = std::io::read_to_string(file)?;
             Ini::new_cs()
                 .read(ini_text)
                 .map_err(|err| Error::InvalidWheel(format!("entry_points.txt is invalid: {err}")))?
@@ -433,6 +432,7 @@ pub(crate) fn parse_wheel_version(wheel_text: &str) -> Result<(), Error> {
 ///
 /// 2.f Compile any installed .py to .pyc. (Uninstallers should be smart enough to remove .pyc
 /// even if it is not mentioned in RECORD.)
+#[instrument(skip_all)]
 fn bytecode_compile(
     site_packages: &Path,
     unpacked_paths: Vec<PathBuf>,
@@ -446,7 +446,9 @@ fn bytecode_compile(
     let py_source_paths: Vec<_> = unpacked_paths
         .into_iter()
         .filter(|path| {
-            site_packages.join(path).is_file() && path.extension() == Some(&OsString::from("py"))
+            path.extension()
+                .is_some_and(|ext| ext.eq_ignore_ascii_case("py"))
+                && site_packages.join(path).is_file()
         })
         .collect();
 
@@ -655,16 +657,18 @@ fn install_script(
     file: &DirEntry,
     location: &InstallLocation<impl AsRef<Path>>,
 ) -> Result<(), Error> {
-    let path = file.path();
-    if !path.is_file() {
+    if !file.file_type()?.is_file() {
         return Err(Error::InvalidWheel(format!(
             "Wheel contains entry in scripts directory that is not a file: {}",
-            path.display()
+            file.path().display()
         )));
     }
 
     let target_path = bin_rel().join(file.file_name());
+
+    let path = file.path();
     let mut script = File::open(&path)?;
+
     // https://sphinx-locales.github.io/peps/pep-0427/#recommended-installer-features
     // > In wheel, scripts are packaged in {distribution}-{version}.data/scripts/.
     // > If the first line of a file in scripts/ starts with exactly b'#!python',
@@ -724,6 +728,7 @@ fn install_script(
 
 /// Move the files from the .data directory to the right location in the venv
 #[allow(clippy::too_many_arguments)]
+#[instrument(skip_all)]
 pub(crate) fn install_data(
     venv_root: &Path,
     site_packages: &Path,
@@ -734,15 +739,17 @@ pub(crate) fn install_data(
     gui_scripts: &[Script],
     record: &mut [RecordEntry],
 ) -> Result<(), Error> {
-    for data_entry in fs::read_dir(data_dir)? {
-        let data_entry = data_entry?;
-        match data_entry.file_name().as_os_str().to_str() {
+    for entry in fs::read_dir(data_dir)? {
+        let entry = entry?;
+        let path = entry.path();
+
+        match path.file_name().and_then(|name| name.to_str()) {
             Some("data") => {
                 // Move the content of the folder to the root of the venv
-                move_folder_recorded(&data_entry.path(), venv_root, site_packages, record)?;
+                move_folder_recorded(&path, venv_root, site_packages, record)?;
             }
             Some("scripts") => {
-                for file in fs::read_dir(data_entry.path())? {
+                for file in fs::read_dir(path)? {
                     let file = file?;
 
                     // Couldn't find any docs for this, took it directly from
@@ -774,17 +781,17 @@ pub(crate) fn install_data(
                         location.python_version().1
                     ))
                     .join(dist_name);
-                move_folder_recorded(&data_entry.path(), &target_path, site_packages, record)?;
+                move_folder_recorded(&path, &target_path, site_packages, record)?;
             }
             Some("purelib" | "platlib") => {
                 // purelib and platlib locations are not relevant when using venvs
                 // https://stackoverflow.com/a/27882460/3549270
-                move_folder_recorded(&data_entry.path(), site_packages, site_packages, record)?;
+                move_folder_recorded(&path, site_packages, site_packages, record)?;
             }
             _ => {
                 return Err(Error::InvalidWheel(format!(
                     "Unknown wheel data type: {:?}",
-                    data_entry.file_name()
+                    entry.file_name()
                 )));
             }
         }
@@ -961,11 +968,10 @@ pub fn install_wheel(
     // > 1.a Parse distribution-1.0.dist-info/WHEEL.
     // > 1.b Check that installer is compatible with Wheel-Version. Warn if minor version is greater, abort if major version is greater.
     let wheel_file_path = format!("{dist_info_prefix}.dist-info/WHEEL");
-    let mut wheel_text = String::new();
-    archive
+    let wheel_file = archive
         .by_name(&wheel_file_path)
-        .map_err(|err| Error::Zip(wheel_file_path, err))?
-        .read_to_string(&mut wheel_text)?;
+        .map_err(|err| Error::Zip(wheel_file_path, err))?;
+    let wheel_text = io::read_to_string(wheel_file)?;
     parse_wheel_version(&wheel_text)?;
     // > 1.c If Root-Is-Purelib == ‘true’, unpack archive into purelib (site-packages).
     // > 1.d Else unpack archive into platlib (site-packages).
diff --git a/crates/puffin-build/src/lib.rs b/crates/puffin-build/src/lib.rs
index bc8fc1e60..abeba4739 100644
--- a/crates/puffin-build/src/lib.rs
+++ b/crates/puffin-build/src/lib.rs
@@ -284,39 +284,40 @@ impl SourceBuild {
         };
 
         // Check if we have a PEP 517 build backend.
-        let pep517_backend = if source_tree.join("pyproject.toml").is_file() {
-            let pyproject_toml: PyProjectToml =
-                toml::from_str(&fs::read_to_string(source_tree.join("pyproject.toml"))?)
-                    .map_err(Error::InvalidPyprojectToml)?;
-            if let Some(build_system) = pyproject_toml.build_system {
-                Some(Pep517Backend {
-                    // If `build-backend` is missing, inject the legacy setuptools backend, but
-                    // retain the `requires`, to match `pip` and `build`. Note that while PEP 517
-                    // says that in this case we "should revert to the legacy behaviour of running
-                    // `setup.py` (either directly, or by implicitly invoking the
-                    // `setuptools.build_meta:__legacy__` backend)", we found that in practice, only
-                    // the legacy setuptools backend is allowed. See also:
-                    // https://github.com/pypa/build/blob/de5b44b0c28c598524832dff685a98d5a5148c44/src/build/__init__.py#L114-L118
-                    backend: build_system
-                        .build_backend
-                        .unwrap_or_else(|| "setuptools.build_meta:__legacy__".to_string()),
-                    backend_path: build_system.backend_path,
-                    requirements: build_system.requires,
-                })
-            } else {
-                // If a `pyproject.toml` is present, but `[build-system]` is missing, proceed with
-                // a PEP 517 build using the default backend, to match `pip` and `build`.
-                Some(Pep517Backend {
-                    backend: "setuptools.build_meta:__legacy__".to_string(),
-                    backend_path: None,
-                    requirements: vec![
-                        Requirement::from_str("wheel").unwrap(),
-                        Requirement::from_str("setuptools >= 40.8.0").unwrap(),
-                    ],
-                })
+        let pep517_backend = match fs::read_to_string(source_tree.join("pyproject.toml")) {
+            Ok(toml) => {
+                let pyproject_toml: PyProjectToml =
+                    toml::from_str(&toml).map_err(Error::InvalidPyprojectToml)?;
+                if let Some(build_system) = pyproject_toml.build_system {
+                    Some(Pep517Backend {
+                        // If `build-backend` is missing, inject the legacy setuptools backend, but
+                        // retain the `requires`, to match `pip` and `build`. Note that while PEP 517
+                        // says that in this case we "should revert to the legacy behaviour of running
+                        // `setup.py` (either directly, or by implicitly invoking the
+                        // `setuptools.build_meta:__legacy__` backend)", we found that in practice, only
+                        // the legacy setuptools backend is allowed. See also:
+                        // https://github.com/pypa/build/blob/de5b44b0c28c598524832dff685a98d5a5148c44/src/build/__init__.py#L114-L118
+                        backend: build_system
+                            .build_backend
+                            .unwrap_or_else(|| "setuptools.build_meta:__legacy__".to_string()),
+                        backend_path: build_system.backend_path,
+                        requirements: build_system.requires,
+                    })
+                } else {
+                    // If a `pyproject.toml` is present, but `[build-system]` is missing, proceed with
+                    // a PEP 517 build using the default backend, to match `pip` and `build`.
+                    Some(Pep517Backend {
+                        backend: "setuptools.build_meta:__legacy__".to_string(),
+                        backend_path: None,
+                        requirements: vec![
+                            Requirement::from_str("wheel").unwrap(),
+                            Requirement::from_str("setuptools >= 40.8.0").unwrap(),
+                        ],
+                    })
+                }
             }
-        } else {
-            None
+            Err(err) if err.kind() == io::ErrorKind::NotFound => None,
+            Err(err) => return Err(err.into()),
         };
 
         let venv = gourgeist::create_venv(&temp_dir.path().join(".venv"), interpreter.clone())?;
diff --git a/crates/puffin-cli/Cargo.toml b/crates/puffin-cli/Cargo.toml
index bc90f1638..b54da9660 100644
--- a/crates/puffin-cli/Cargo.toml
+++ b/crates/puffin-cli/Cargo.toml
@@ -8,6 +8,7 @@ documentation = { workspace = true }
 repository = { workspace = true }
 authors = { workspace = true }
 license = { workspace = true }
+default-run = "puffin"
 
 [lints]
 workspace = true
@@ -45,12 +46,12 @@ anyhow = { workspace = true }
 bitflags = { workspace = true }
 chrono = { workspace = true }
 clap = { workspace = true, features = ["derive"] }
-colored = { workspace = true }
 fs-err = { workspace = true, features = ["tokio"] }
 futures = { workspace = true }
 indicatif = { workspace = true }
 itertools = { workspace = true }
 miette = { workspace = true, features = ["fancy"] }
+owo-colors = { workspace = true }
 pubgrub = { workspace = true }
 pyproject-toml = { workspace = true }
 rustc-hash = { workspace = true }
@@ -60,6 +61,7 @@ thiserror = { workspace = true }
 tokio = { workspace = true }
 toml = { workspace = true }
 tracing = { workspace = true }
+tracing-durations-export = { workspace = true, features = ["plot"], optional = true }
 tracing-subscriber = { workspace = true }
 tracing-tree = { workspace = true }
 url = { workspace = true }
diff --git a/crates/puffin-cli/src/commands/clean.rs b/crates/puffin-cli/src/commands/clean.rs
index 2ebbf6226..173d1090d 100644
--- a/crates/puffin-cli/src/commands/clean.rs
+++ b/crates/puffin-cli/src/commands/clean.rs
@@ -1,8 +1,8 @@
 use std::fmt::Write;
 
 use anyhow::{Context, Result};
-use colored::Colorize;
 use fs_err as fs;
+use owo_colors::OwoColorize;
 
 use puffin_cache::Cache;
 use puffin_normalize::PackageName;
@@ -20,7 +20,7 @@ pub(crate) fn clean(
         writeln!(
             printer,
             "No cache found at: {}",
-            format!("{}", cache.root().display()).cyan()
+            cache.root().display().cyan()
         )?;
         return Ok(ExitStatus::Success);
     }
@@ -29,7 +29,7 @@ pub(crate) fn clean(
         writeln!(
             printer,
             "Clearing cache at: {}",
-            format!("{}", cache.root().display()).cyan()
+            cache.root().display().cyan()
         )?;
         fs::remove_dir_all(cache.root())
             .with_context(|| format!("Failed to clear cache at: {}", cache.root().display()))?;
@@ -37,20 +37,12 @@ pub(crate) fn clean(
         for package in packages {
             let count = cache.purge(package)?;
             match count {
-                0 => writeln!(
-                    printer,
-                    "No entries found for package: {}",
-                    format!("{package}").cyan()
-                )?,
-                1 => writeln!(
-                    printer,
-                    "Cleared 1 entry for package: {}",
-                    format!("{package}").cyan()
-                )?,
+                0 => writeln!(printer, "No entries found for package: {}", package.cyan())?,
+                1 => writeln!(printer, "Cleared 1 entry for package: {}", package.cyan())?,
                 count => writeln!(
                     printer,
                     "Cleared {count} entries for package: {}",
-                    format!("{package}").cyan()
+                    package.cyan()
                 )?,
             }
         }
diff --git a/crates/puffin-cli/src/commands/freeze.rs b/crates/puffin-cli/src/commands/freeze.rs
index 01de6e9ab..7a9d0896f 100644
--- a/crates/puffin-cli/src/commands/freeze.rs
+++ b/crates/puffin-cli/src/commands/freeze.rs
@@ -1,8 +1,8 @@
 use std::fmt::Write;
 
 use anyhow::Result;
-use colored::Colorize;
 use itertools::Itertools;
+use owo_colors::OwoColorize;
 use tracing::debug;
 
 use distribution_types::Name;
diff --git a/crates/puffin-cli/src/commands/pip_compile.rs b/crates/puffin-cli/src/commands/pip_compile.rs
index 336eb0267..c6c544ccb 100644
--- a/crates/puffin-cli/src/commands/pip_compile.rs
+++ b/crates/puffin-cli/src/commands/pip_compile.rs
@@ -8,8 +8,8 @@ use std::str::FromStr;
 use anstream::AutoStream;
 use anyhow::{anyhow, Context, Result};
 use chrono::{DateTime, Utc};
-use colored::Colorize;
 use itertools::Itertools;
+use owo_colors::OwoColorize;
 use tempfile::tempdir_in;
 use tracing::debug;
 
diff --git a/crates/puffin-cli/src/commands/pip_install.rs b/crates/puffin-cli/src/commands/pip_install.rs
index 77fe01572..7f308d40d 100644
--- a/crates/puffin-cli/src/commands/pip_install.rs
+++ b/crates/puffin-cli/src/commands/pip_install.rs
@@ -2,10 +2,11 @@ use std::env;
 use std::fmt::Write;
 use std::path::Path;
 
+use anstream::eprint;
 use anyhow::{anyhow, Context, Result};
 use chrono::{DateTime, Utc};
-use colored::Colorize;
 use itertools::Itertools;
+use owo_colors::OwoColorize;
 use tempfile::tempdir_in;
 use tracing::debug;
 
diff --git a/crates/puffin-cli/src/commands/pip_sync.rs b/crates/puffin-cli/src/commands/pip_sync.rs
index b87d558fd..ad7e1b2a1 100644
--- a/crates/puffin-cli/src/commands/pip_sync.rs
+++ b/crates/puffin-cli/src/commands/pip_sync.rs
@@ -1,8 +1,8 @@
 use std::fmt::Write;
 
 use anyhow::{Context, Result};
-use colored::Colorize;
 use itertools::Itertools;
+use owo_colors::OwoColorize;
 use tracing::debug;
 
 use distribution_types::{IndexUrls, InstalledMetadata, LocalDist, LocalEditable, Name};
diff --git a/crates/puffin-cli/src/commands/pip_uninstall.rs b/crates/puffin-cli/src/commands/pip_uninstall.rs
index e3736a629..c1856055f 100644
--- a/crates/puffin-cli/src/commands/pip_uninstall.rs
+++ b/crates/puffin-cli/src/commands/pip_uninstall.rs
@@ -1,7 +1,7 @@
 use std::fmt::Write;
 
 use anyhow::Result;
-use colored::Colorize;
+use owo_colors::OwoColorize;
 use tracing::debug;
 
 use distribution_types::{InstalledMetadata, Name};
diff --git a/crates/puffin-cli/src/commands/reporters.rs b/crates/puffin-cli/src/commands/reporters.rs
index 2f293d45b..69ad97fda 100644
--- a/crates/puffin-cli/src/commands/reporters.rs
+++ b/crates/puffin-cli/src/commands/reporters.rs
@@ -1,8 +1,8 @@
 use std::sync::{Arc, Mutex};
 use std::time::Duration;
 
-use colored::Colorize;
 use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
+use owo_colors::OwoColorize;
 use url::Url;
 
 use distribution_types::{
diff --git a/crates/puffin-cli/src/commands/venv.rs b/crates/puffin-cli/src/commands/venv.rs
index 4c2418d93..e3d18ecde 100644
--- a/crates/puffin-cli/src/commands/venv.rs
+++ b/crates/puffin-cli/src/commands/venv.rs
@@ -2,9 +2,9 @@ use std::fmt::Write;
 use std::path::{Path, PathBuf};
 
 use anyhow::Result;
-use colored::Colorize;
 use fs_err as fs;
 use miette::{Diagnostic, IntoDiagnostic};
+use owo_colors::OwoColorize;
 use thiserror::Error;
 
 use platform_host::Platform;
@@ -84,14 +84,14 @@ fn venv_impl(
         printer,
         "Using Python {} at {}",
         interpreter.version(),
-        format!("{}", interpreter.sys_executable().display()).cyan()
+        interpreter.sys_executable().display().cyan()
     )
     .into_diagnostic()?;
 
     writeln!(
         printer,
         "Creating virtual environment at: {}",
-        format!("{}", path.display()).cyan()
+        path.display().cyan()
     )
     .into_diagnostic()?;
 
diff --git a/crates/puffin-cli/src/logging.rs b/crates/puffin-cli/src/logging.rs
index 5a69e4a83..cab4680c6 100644
--- a/crates/puffin-cli/src/logging.rs
+++ b/crates/puffin-cli/src/logging.rs
@@ -1,7 +1,11 @@
 use tracing::level_filters::LevelFilter;
+#[cfg(feature = "tracing-durations-export")]
+use tracing_durations_export::{
+    plot::PlotConfig, DurationsLayer, DurationsLayerBuilder, DurationsLayerDropGuard,
+};
 use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::util::SubscriberInitExt;
-use tracing_subscriber::EnvFilter;
+use tracing_subscriber::{EnvFilter, Layer, Registry};
 use tracing_tree::time::Uptime;
 use tracing_tree::HierarchicalLayer;
 
@@ -20,7 +24,7 @@ pub(crate) enum Level {
 /// The [`Level`] is used to dictate the default filters (which can be overridden by the `RUST_LOG`
 /// environment variable) along with the formatting of the output. For example, [`Level::Verbose`]
 /// includes targets and timestamps, along with all `puffin=debug` messages by default.
-pub(crate) fn setup_logging(level: Level) {
+pub(crate) fn setup_logging(level: Level, duration: impl Layer<Registry> + Send + Sync) {
     match level {
         Level::Default => {
             // Show nothing, but allow `RUST_LOG` to override.
@@ -30,6 +34,7 @@ pub(crate) fn setup_logging(level: Level) {
 
             // Regardless of the tracing level, show messages without any adornment.
             tracing_subscriber::registry()
+                .with(duration)
                 .with(filter)
                 .with(
                     tracing_subscriber::fmt::layer()
@@ -47,6 +52,7 @@ pub(crate) fn setup_logging(level: Level) {
 
             // Regardless of the tracing level, include the uptime and target for each message.
             tracing_subscriber::registry()
+                .with(duration)
                 .with(filter)
                 .with(
                     HierarchicalLayer::default()
@@ -58,3 +64,37 @@ pub(crate) fn setup_logging(level: Level) {
         }
     }
 }
+
+/// Setup the `TRACING_DURATIONS_FILE` environment variable to enable tracing durations.
+#[cfg(feature = "tracing-durations-export")]
+pub(crate) fn setup_duration() -> (
+    Option<DurationsLayer<Registry>>,
+    Option<DurationsLayerDropGuard>,
+) {
+    if let Ok(location) = std::env::var("TRACING_DURATIONS_FILE") {
+        let location = std::path::PathBuf::from(location);
+        if let Some(parent) = location.parent() {
+            fs_err::create_dir_all(parent)
+                .expect("Failed to create parent of TRACING_DURATIONS_FILE");
+        }
+        let plot_config = PlotConfig {
+            multi_lane: true,
+            min_length: Some(std::time::Duration::from_secs_f32(0.002)),
+            remove: Some(
+                ["get_cached_with_callback".to_string()]
+                    .into_iter()
+                    .collect(),
+            ),
+            ..PlotConfig::default()
+        };
+        let (layer, guard) = DurationsLayerBuilder::default()
+            .durations_file(&location)
+            .plot_file(location.with_extension("svg"))
+            .plot_config(plot_config)
+            .build()
+            .expect("Couldn't create TRACING_DURATIONS_FILE files");
+        (Some(layer), Some(guard))
+    } else {
+        (None, None)
+    }
+}
diff --git a/crates/puffin-cli/src/main.rs b/crates/puffin-cli/src/main.rs
index 5520e3efe..ff9562ec6 100644
--- a/crates/puffin-cli/src/main.rs
+++ b/crates/puffin-cli/src/main.rs
@@ -6,7 +6,7 @@ use anstream::eprintln;
 use anyhow::Result;
 use chrono::{DateTime, Days, NaiveDate, NaiveTime, Utc};
 use clap::{Args, Parser, Subcommand};
-use colored::Colorize;
+use owo_colors::OwoColorize;
 
 use distribution_types::{IndexUrl, IndexUrls};
 use puffin_cache::{Cache, CacheArgs};
@@ -415,11 +415,18 @@ async fn inner() -> Result<ExitStatus> {
     let cli = Cli::parse();
 
     // Configure the `tracing` crate, which controls internal logging.
-    logging::setup_logging(if cli.verbose {
-        logging::Level::Verbose
-    } else {
-        logging::Level::Default
-    });
+    #[cfg(feature = "tracing-durations-export")]
+    let (duration_layer, _duration_guard) = logging::setup_duration();
+    #[cfg(not(feature = "tracing-durations-export"))]
+    let duration_layer = None::<tracing_subscriber::layer::Identity>;
+    logging::setup_logging(
+        if cli.verbose {
+            logging::Level::Verbose
+        } else {
+            logging::Level::Default
+        },
+        duration_layer,
+    );
 
     // Configure the `Printer`, which controls user-facing output in the CLI.
     let printer = if cli.quiet {
diff --git a/crates/puffin-cli/tests/pip_compile.rs b/crates/puffin-cli/tests/pip_compile.rs
index 2a5e39c53..2858caf2a 100644
--- a/crates/puffin-cli/tests/pip_compile.rs
+++ b/crates/puffin-cli/tests/pip_compile.rs
@@ -670,8 +670,8 @@ fn compile_python_37() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of Python available matching >=3.8 and
-              black==23.10.1 depends on Python>=3.8, black==23.10.1 is forbidden.
+          ╰─▶ Because there are no versions of Python>=3.8 and black==23.10.1 depends
+              on Python>=3.8, black==23.10.1 is forbidden.
               And because root depends on black==23.10.1, version solving failed.
         "###);
     });
@@ -1405,8 +1405,8 @@ fn conflicting_direct_url_dependency() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of werkzeug available matching ==3.0.0 and
-              root depends on werkzeug==3.0.0, version solving failed.
+          ╰─▶ Because there is no version of werkzeug==3.0.0 and root depends on
+              werkzeug==3.0.0, version solving failed.
         "###);
     });
 
@@ -1555,8 +1555,8 @@ fn conflicting_transitive_url_dependency() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because flask==3.0.0 depends on werkzeug>=3.0.0 and there is no version
-              of werkzeug available matching >=3.0.0, flask==3.0.0 is forbidden.
+          ╰─▶ Because flask==3.0.0 depends on werkzeug>=3.0.0 and there are no
+              versions of werkzeug>=3.0.0, flask==3.0.0 is forbidden.
               And because root depends on flask==3.0.0, version solving failed.
         "###);
     });
@@ -1899,8 +1899,8 @@ dependencies = ["django==300.1.4"]
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of django available matching ==300.1.4 and
-              my-project depends on django==300.1.4, version solving failed.
+          ╰─▶ Because there is no version of django==300.1.4 and my-project depends on
+              django==300.1.4, version solving failed.
         "###);
     });
 
@@ -2225,8 +2225,8 @@ fn compile_yanked_version_indirect() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of attrs available matching >20.3.0, <21.2.0
-              and root depends on attrs>20.3.0, <21.2.0, version solving failed.
+          ╰─▶ Because there are no versions of attrs>20.3.0, <21.2.0 and root depends
+              on attrs>20.3.0, <21.2.0, version solving failed.
         "###);
     });
 
diff --git a/crates/puffin-cli/tests/pip_install.rs b/crates/puffin-cli/tests/pip_install.rs
index e44423f9b..5255bc0e4 100644
--- a/crates/puffin-cli/tests/pip_install.rs
+++ b/crates/puffin-cli/tests/pip_install.rs
@@ -77,9 +77,8 @@ fn no_solution() -> Result<()> {
 
     ----- stderr -----
       × No solution found when resolving dependencies:
-      ╰─▶ Because there is no version of flask available matching >3.0.0 and
-          flask==3.0.0 depends on werkzeug>=3.0.0, flask>=3.0.0 depends on
-          werkzeug>=3.0.0.
+      ╰─▶ Because there are no versions of flask>3.0.0 and flask==3.0.0 depends on
+          werkzeug>=3.0.0, flask>=3.0.0 depends on werkzeug>=3.0.0.
           And because root depends on flask>=3.0.0 and root depends on
           werkzeug<1.0.0, version solving failed.
     "###);
@@ -644,7 +643,7 @@ fn install_editable_and_registry() -> Result<()> {
         Resolved 1 package in [TIME]
         Installed 1 package in [TIME]
          - black==23.11.0
-         + black==0.1.0 (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
+         + black==0.1.0+editable (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
         "###);
     });
 
@@ -694,7 +693,7 @@ fn install_editable_and_registry() -> Result<()> {
         Resolved 6 packages in [TIME]
         Downloaded 1 package in [TIME]
         Installed 1 package in [TIME]
-         - black==0.1.0 (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
+         - black==0.1.0+editable (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
          + black==23.10.0
         "###);
     });
diff --git a/crates/puffin-cli/tests/pip_install_scenarios.rs b/crates/puffin-cli/tests/pip_install_scenarios.rs
index 8370df073..b5ddae2ef 100644
--- a/crates/puffin-cli/tests/pip_install_scenarios.rs
+++ b/crates/puffin-cli/tests/pip_install_scenarios.rs
@@ -82,7 +82,7 @@ fn excluded_only_version() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching <1.0.0 | >1.0.0 and root depends on a<1.0.0 | >1.0.0, version solving failed.
+          ╰─▶ Because there are no versions of a<1.0.0 | >1.0.0 and root depends on a<1.0.0 | >1.0.0, version solving failed.
         "###);
     });
 
@@ -150,7 +150,7 @@ fn excluded_only_compatible_version() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching <1.0.0 | >1.0.0, <2.0.0 | >2.0.0, <3.0.0 | >3.0.0 and a==1.0.0 depends on b==1.0.0, a<2.0.0 depends on b==1.0.0.
+          ╰─▶ Because there are no versions of a<1.0.0 | >1.0.0, <2.0.0 | >2.0.0, <3.0.0 | >3.0.0 and a==1.0.0 depends on b==1.0.0, a<2.0.0 depends on b==1.0.0.
               And because a==3.0.0 depends on b==3.0.0, a<2.0.0 | >2.0.0 depends on b<=1.0.0 | >=3.0.0.
               And because root depends on b>=2.0.0, <3.0.0 and root depends on a<2.0.0 | >2.0.0, version solving failed.
         "###);
@@ -258,11 +258,11 @@ fn dependency_excludes_range_of_compatible_versions() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching <1.0.0 | >1.0.0, <2.0.0 | >3.0.0 and a==1.0.0 depends on b==1.0.0, a<2.0.0 depends on b==1.0.0. (1)
+          ╰─▶ Because there are no versions of a<1.0.0 | >1.0.0, <2.0.0 | >3.0.0 and a==1.0.0 depends on b==1.0.0, a<2.0.0 depends on b==1.0.0. (1)
 
-              Because there is no version of c available matching <1.0.0 | >1.0.0, <2.0.0 | >2.0.0 and c==1.0.0 depends on a<2.0.0, c<2.0.0 depends on a<2.0.0.
+              Because there are no versions of c<1.0.0 | >1.0.0, <2.0.0 | >2.0.0 and c==1.0.0 depends on a<2.0.0, c<2.0.0 depends on a<2.0.0.
               And because c==2.0.0 depends on a>=3.0.0, c depends on a<2.0.0 | >=3.0.0.
-              And because a<2.0.0 depends on b==1.0.0 (1), a Not ( ==3.0.0 ), c *, b Not ( ==1.0.0 ) are incompatible.
+              And because a<2.0.0 depends on b==1.0.0 (1), a!=3.0.0, c*, b!=1.0.0 are incompatible.
               And because a==3.0.0 depends on b==3.0.0, c depends on b<=1.0.0 | >=3.0.0.
               And because root depends on c and root depends on b>=2.0.0, <3.0.0, version solving failed.
         "###);
@@ -386,10 +386,10 @@ fn dependency_excludes_non_contiguous_range_of_compatible_versions() -> Result<(
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because a==1.0.0 depends on b==1.0.0 and there is no version of a available matching <1.0.0 | >1.0.0, <2.0.0 | >3.0.0, a<2.0.0 depends on b==1.0.0.
+          ╰─▶ Because a==1.0.0 depends on b==1.0.0 and there are no versions of a<1.0.0 | >1.0.0, <2.0.0 | >3.0.0, a<2.0.0 depends on b==1.0.0.
               And because a==3.0.0 depends on b==3.0.0, a<2.0.0 | >=3.0.0 depends on b<=1.0.0 | >=3.0.0. (1)
 
-              Because there is no version of c available matching <1.0.0 | >1.0.0, <2.0.0 | >2.0.0 and c==1.0.0 depends on a<2.0.0, c<2.0.0 depends on a<2.0.0.
+              Because there are no versions of c<1.0.0 | >1.0.0, <2.0.0 | >2.0.0 and c==1.0.0 depends on a<2.0.0, c<2.0.0 depends on a<2.0.0.
               And because c==2.0.0 depends on a>=3.0.0, c depends on a<2.0.0 | >=3.0.0.
               And because a<2.0.0 | >=3.0.0 depends on b<=1.0.0 | >=3.0.0 (1), c depends on b<=1.0.0 | >=3.0.0.
               And because root depends on b>=2.0.0, <3.0.0 and root depends on c, version solving failed.
@@ -521,7 +521,9 @@ fn requires_package_only_prereleases_in_range() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching >0.1.0 and root depends on a>0.1.0, version solving failed.
+          ╰─▶ Because there are no versions of a>0.1.0 and root depends on a>0.1.0, version solving failed.
+
+              hint: Pre-releases are available for a in the requested range (e.g., 1.0.0a1), but pre-releases weren't enabled (try: `--prerelease=allow`)
         "###);
     });
 
@@ -1114,8 +1116,10 @@ fn requires_transitive_package_only_prereleases_in_range() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of b available matching >0.1 and a==0.1.0 depends on b>0.1, a==0.1.0 is forbidden.
-              And because there is no version of a available matching <0.1.0 | >0.1.0 and root depends on a, version solving failed.
+          ╰─▶ Because there are no versions of b>0.1 and a==0.1.0 depends on b>0.1, a==0.1.0 is forbidden.
+              And because there are no versions of a<0.1.0 | >0.1.0 and root depends on a, version solving failed.
+
+              hint: Pre-releases are available for b in the requested range (e.g., 1.0.0a1), but pre-releases weren't enabled (try: `--prerelease=allow`)
         "###);
     });
 
@@ -1267,8 +1271,8 @@ fn requires_transitive_prerelease_and_stable_dependency() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of c available matching ==2.0.0b1 and a==1.0.0 depends on c==2.0.0b1, a==1.0.0 is forbidden.
-              And because there is no version of a available matching <1.0.0 | >1.0.0 and root depends on a, version solving failed.
+          ╰─▶ Because there is no version of c==2.0.0b1 and a==1.0.0 depends on c==2.0.0b1, a==1.0.0 is forbidden.
+              And because there are no versions of a<1.0.0 | >1.0.0 and root depends on a, version solving failed.
 
               hint: c was requested with a pre-release marker (e.g., ==2.0.0b1), but pre-releases weren't enabled (try: `--prerelease=allow`)
         "###);
@@ -1464,9 +1468,9 @@ fn requires_transitive_prerelease_and_stable_dependency_many_versions() -> Resul
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of b available matching <1.0.0 | >1.0.0 and b==1.0.0 depends on c, b depends on c.
-              And because there is no version of c available matching >=2.0.0b1, b depends on c<2.0.0b1.
-              And because a==1.0.0 depends on c>=2.0.0b1 and there is no version of a available matching <1.0.0 | >1.0.0, b *, a * are incompatible.
+          ╰─▶ Because there are no versions of b<1.0.0 | >1.0.0 and b==1.0.0 depends on c, b depends on c.
+              And because there are no versions of c>=2.0.0b1, b depends on c<2.0.0b1.
+              And because a==1.0.0 depends on c>=2.0.0b1 and there are no versions of a<1.0.0 | >1.0.0, b*, a* are incompatible.
               And because root depends on b and root depends on a, version solving failed.
 
               hint: c was requested with a pre-release marker (e.g., >=2.0.0b1), but pre-releases weren't enabled (try: `--prerelease=allow`)
@@ -1563,8 +1567,8 @@ fn requires_transitive_prerelease_and_stable_dependency_many_versions_holes() ->
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of c available matching >1.0.0, <2.0.0a5 | >2.0.0a7, <2.0.0b1 | >2.0.0b1, <2.0.0b5 and a==1.0.0 depends on c>1.0.0, <2.0.0a5 | >2.0.0a7, <2.0.0b1 | >2.0.0b1, <2.0.0b5, a==1.0.0 is forbidden.
-              And because there is no version of a available matching <1.0.0 | >1.0.0 and root depends on a, version solving failed.
+          ╰─▶ Because there are no versions of c>1.0.0, <2.0.0a5 | >2.0.0a7, <2.0.0b1 | >2.0.0b1, <2.0.0b5 and a==1.0.0 depends on c>1.0.0, <2.0.0a5 | >2.0.0a7, <2.0.0b1 | >2.0.0b1, <2.0.0b5, a==1.0.0 is forbidden.
+              And because there are no versions of a<1.0.0 | >1.0.0 and root depends on a, version solving failed.
 
               hint: c was requested with a pre-release marker (e.g., >1.0.0, <2.0.0a5 | >2.0.0a7, <2.0.0b1 | >2.0.0b1, <2.0.0b5), but pre-releases weren't enabled (try: `--prerelease=allow`)
         "###);
@@ -1677,7 +1681,7 @@ fn requires_exact_version_does_not_exist() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching ==2.0.0 and root depends on a==2.0.0, version solving failed.
+          ╰─▶ Because there is no version of a==2.0.0 and root depends on a==2.0.0, version solving failed.
         "###);
     });
 
@@ -1733,7 +1737,7 @@ fn requires_greater_version_does_not_exist() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching >1.0.0 and root depends on a>1.0.0, version solving failed.
+          ╰─▶ Because there are no versions of a>1.0.0 and root depends on a>1.0.0, version solving failed.
         "###);
     });
 
@@ -1790,7 +1794,7 @@ fn requires_less_version_does_not_exist() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching <2.0.0 and root depends on a<2.0.0, version solving failed.
+          ╰─▶ Because there are no versions of a<2.0.0 and root depends on a<2.0.0, version solving failed.
         "###);
     });
 
@@ -1974,7 +1978,7 @@ fn requires_transitive_incompatible_with_root_version() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching <1.0.0 | >1.0.0 and a==1.0.0 depends on b==2.0.0, a depends on b==2.0.0.
+          ╰─▶ Because there are no versions of a<1.0.0 | >1.0.0 and a==1.0.0 depends on b==2.0.0, a depends on b==2.0.0.
               And because root depends on a and root depends on b==1.0.0, version solving failed.
         "###);
     });
@@ -2050,8 +2054,8 @@ fn requires_transitive_incompatible_with_transitive() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of b available matching <1.0.0 | >1.0.0 and b==1.0.0 depends on c==2.0.0, b depends on c==2.0.0.
-              And because a==1.0.0 depends on c==1.0.0 and there is no version of a available matching <1.0.0 | >1.0.0, a *, b * are incompatible.
+          ╰─▶ Because there are no versions of b<1.0.0 | >1.0.0 and b==1.0.0 depends on c==2.0.0, b depends on c==2.0.0.
+              And because a==1.0.0 depends on c==1.0.0 and there are no versions of a<1.0.0 | >1.0.0, a*, b* are incompatible.
               And because root depends on b and root depends on a, version solving failed.
         "###);
     });
@@ -2112,7 +2116,7 @@ fn requires_python_version_does_not_exist() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of Python available matching >=4.0 and a==1.0.0 depends on Python>=4.0, a==1.0.0 is forbidden.
+          ╰─▶ Because there are no versions of Python>=4.0 and a==1.0.0 depends on Python>=4.0, a==1.0.0 is forbidden.
               And because root depends on a==1.0.0, version solving failed.
         "###);
     });
@@ -2169,7 +2173,7 @@ fn requires_python_version_less_than_current() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of Python available matching <=3.8 and a==1.0.0 depends on Python<=3.8, a==1.0.0 is forbidden.
+          ╰─▶ Because there are no versions of Python<=3.8 and a==1.0.0 depends on Python<=3.8, a==1.0.0 is forbidden.
               And because root depends on a==1.0.0, version solving failed.
         "###);
     });
@@ -2229,7 +2233,7 @@ fn requires_python_version_greater_than_current() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of Python available matching >=3.10 and a==1.0.0 depends on Python>=3.10, a==1.0.0 is forbidden.
+          ╰─▶ Because there are no versions of Python>=3.10 and a==1.0.0 depends on Python>=3.10, a==1.0.0 is forbidden.
               And because root depends on a==1.0.0, version solving failed.
         "###);
     });
@@ -2311,7 +2315,7 @@ fn requires_python_version_greater_than_current_many() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of a available matching ==1.0.0 and root depends on a==1.0.0, version solving failed.
+          ╰─▶ Because there is no version of a==1.0.0 and root depends on a==1.0.0, version solving failed.
         "###);
     });
 
@@ -2447,15 +2451,15 @@ fn requires_python_version_greater_than_current_excluded() -> Result<()> {
 
         ----- stderr -----
           × No solution found when resolving dependencies:
-          ╰─▶ Because there is no version of Python available matching >=3.10, <3.11 and there is no version of Python available matching >=3.12, Python >=3.10, <3.11 | >=3.12 are incompatible.
-              And because there is no version of Python available matching >=3.11, <3.12, Python >=3.10 are incompatible.
-              And because a==2.0.0 depends on Python>=3.10 and there is no version of a available matching >2.0.0, <3.0.0 | >3.0.0, <4.0.0 | >4.0.0, a>=2.0.0, <3.0.0 is forbidden. (1)
+          ╰─▶ Because there are no versions of Python>=3.10, <3.11 and there are no versions of Python>=3.12, Python>=3.10, <3.11 | >=3.12 are incompatible.
+              And because there are no versions of Python>=3.11, <3.12, Python>=3.10 are incompatible.
+              And because a==2.0.0 depends on Python>=3.10 and there are no versions of a>2.0.0, <3.0.0 | >3.0.0, <4.0.0 | >4.0.0, a>=2.0.0, <3.0.0 is forbidden. (1)
 
-              Because there is no version of Python available matching >=3.11, <3.12 and there is no version of Python available matching >=3.12, Python >=3.11 are incompatible.
+              Because there are no versions of Python>=3.11, <3.12 and there are no versions of Python>=3.12, Python>=3.11 are incompatible.
               And because a==3.0.0 depends on Python>=3.11, a==3.0.0 is forbidden.
               And because a>=2.0.0, <3.0.0 is forbidden (1), a>=2.0.0, <4.0.0 is forbidden. (2)
 
-              Because there is no version of Python available matching >=3.12 and a==4.0.0 depends on Python>=3.12, a==4.0.0 is forbidden.
+              Because there are no versions of Python>=3.12 and a==4.0.0 depends on Python>=3.12, a==4.0.0 is forbidden.
               And because a>=2.0.0, <4.0.0 is forbidden (2), a>=2.0.0 is forbidden.
               And because root depends on a>=2.0.0, version solving failed.
         "###);
diff --git a/crates/puffin-cli/tests/pip_sync.rs b/crates/puffin-cli/tests/pip_sync.rs
index 80d740fe5..f23308d5b 100644
--- a/crates/puffin-cli/tests/pip_sync.rs
+++ b/crates/puffin-cli/tests/pip_sync.rs
@@ -2314,6 +2314,7 @@ fn sync_editable() -> Result<()> {
         "../../scripts/editable-installs/maturin_editable/python/maturin_editable/__init__.py";
     let python_version_1 = indoc::indoc! {r"
         from .maturin_editable import *
+        
         version = 1
    "};
     fs_err::write(python_source_file, python_version_1)?;
@@ -2329,6 +2330,7 @@ fn sync_editable() -> Result<()> {
     // Edit the sources.
     let python_version_2 = indoc::indoc! {r"
         from .maturin_editable import *
+        
         version = 2
    "};
     fs_err::write(python_source_file, python_version_2)?;
@@ -2458,7 +2460,7 @@ fn sync_editable_and_registry() -> Result<()> {
         Uninstalled 1 package in [TIME]
         Installed 1 package in [TIME]
          - black==24.1a1
-         + black==0.1.0 (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
+         + black==0.1.0+editable (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
         "###);
     });
 
@@ -2535,7 +2537,7 @@ fn sync_editable_and_registry() -> Result<()> {
         Downloaded 1 package in [TIME]
         Uninstalled 1 package in [TIME]
         Installed 1 package in [TIME]
-         - black==0.1.0 (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
+         - black==0.1.0+editable (from file://[WORKSPACE_DIR]/scripts/editable-installs/black_editable/)
          + black==23.10.0
         warning: The package `black` requires `click >=8.0.0`, but it's not installed.
         warning: The package `black` requires `mypy-extensions >=0.4.3`, but it's not installed.
diff --git a/crates/puffin-client/src/html.rs b/crates/puffin-client/src/html.rs
index f43bc8817..3939ebac1 100644
--- a/crates/puffin-client/src/html.rs
+++ b/crates/puffin-client/src/html.rs
@@ -118,9 +118,7 @@ impl SimpleHtml {
         {
             let requires_python = std::str::from_utf8(requires_python.as_bytes())?;
             let requires_python = html_escape::decode_html_entities(requires_python);
-            let requires_python =
-                VersionSpecifiers::from_str(&requires_python).map_err(Error::Pep440)?;
-            Some(requires_python)
+            Some(VersionSpecifiers::from_str(&requires_python))
         } else {
             None
         };
diff --git a/crates/puffin-client/src/registry_client.rs b/crates/puffin-client/src/registry_client.rs
index ef216055f..5ffb2c25f 100644
--- a/crates/puffin-client/src/registry_client.rs
+++ b/crates/puffin-client/src/registry_client.rs
@@ -13,7 +13,7 @@ use serde::{Deserialize, Serialize};
 use tempfile::tempfile_in;
 use tokio::io::BufWriter;
 use tokio_util::compat::FuturesAsyncReadCompatExt;
-use tracing::{debug, info_span, instrument, trace, Instrument};
+use tracing::{debug, info_span, instrument, trace, warn, Instrument};
 use url::Url;
 
 use distribution_filename::{DistFilename, SourceDistFilename, WheelFilename};
@@ -465,13 +465,21 @@ impl SimpleMetadata {
                     DistFilename::WheelFilename(ref inner) => &inner.version,
                 };
 
+                let file = match file.try_into() {
+                    Ok(file) => file,
+                    Err(err) => {
+                        // Ignore files with unparseable version specifiers.
+                        warn!("Skipping file for {package_name}: {err}");
+                        continue;
+                    }
+                };
                 match metadata.0.entry(version.clone()) {
                     std::collections::btree_map::Entry::Occupied(mut entry) => {
-                        entry.get_mut().push(filename, file.into());
+                        entry.get_mut().push(filename, file);
                     }
                     std::collections::btree_map::Entry::Vacant(entry) => {
                         let mut files = VersionFiles::default();
-                        files.push(filename, file.into());
+                        files.push(filename, file);
                         entry.insert(files);
                     }
                 }
@@ -514,3 +522,58 @@ impl MediaType {
         "application/vnd.pypi.simple.v1+json, application/vnd.pypi.simple.v1+html;q=0.2, text/html;q=0.01"
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use std::str::FromStr;
+
+    use puffin_normalize::PackageName;
+    use pypi_types::SimpleJson;
+
+    use crate::SimpleMetadata;
+
+    #[test]
+    fn ignore_failing_files() {
+        // 1.7.7 has an invalid requires-python field (double comma), 1.7.8 is valid
+        let response = r#"
+        {
+          "files": [
+            {
+              "core-metadata": false,
+              "data-dist-info-metadata": false,
+              "filename": "pyflyby-1.7.7.tar.gz",
+              "hashes": {
+                "sha256": "0c4d953f405a7be1300b440dbdbc6917011a07d8401345a97e72cd410d5fb291"
+              },
+              "requires-python": ">=2.5, !=3.0.*, !=3.1.*, !=3.2.*, !=3.2.*, !=3.3.*, !=3.4.*,, !=3.5.*, !=3.6.*, <4",
+              "size": 427200,
+              "upload-time": "2022-05-19T09:14:36.591835Z",
+              "url": "https://files.pythonhosted.org/packages/61/93/9fec62902d0b4fc2521333eba047bff4adbba41f1723a6382367f84ee522/pyflyby-1.7.7.tar.gz",
+              "yanked": false
+            },
+            {
+              "core-metadata": false,
+              "data-dist-info-metadata": false,
+              "filename": "pyflyby-1.7.8.tar.gz",
+              "hashes": {
+                "sha256": "1ee37474f6da8f98653dbcc208793f50b7ace1d9066f49e2707750a5ba5d53c6"
+              },
+              "requires-python": ">=2.5, !=3.0.*, !=3.1.*, !=3.2.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, !=3.6.*, <4",
+              "size": 424460,
+              "upload-time": "2022-08-04T10:42:02.190074Z",
+              "url": "https://files.pythonhosted.org/packages/ad/39/17180d9806a1c50197bc63b25d0f1266f745fc3b23f11439fccb3d6baa50/pyflyby-1.7.8.tar.gz",
+              "yanked": false
+            }
+          ]
+        }
+        "#;
+        let data: SimpleJson = serde_json::from_str(response).unwrap();
+        let simple_metadata =
+            SimpleMetadata::from_files(data.files, &PackageName::from_str("pyflyby").unwrap());
+        let versions: Vec<String> = simple_metadata
+            .iter()
+            .map(|(version, _)| version.to_string())
+            .collect();
+        assert_eq!(versions, ["1.7.8".to_string()]);
+    }
+}
diff --git a/crates/puffin-dev/Cargo.toml b/crates/puffin-dev/Cargo.toml
index 175202e66..8b3b7f2ee 100644
--- a/crates/puffin-dev/Cargo.toml
+++ b/crates/puffin-dev/Cargo.toml
@@ -38,23 +38,24 @@ anstream = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
 clap = { workspace = true, features = ["derive"] }
-colored = { workspace = true }
-fs-err = { workspace = true }
+fs-err = { workspace = true, features = ["tokio"] }
 futures = { workspace = true }
 indicatif = { workspace = true }
 itertools = { workspace = true }
+owo-colors = { workspace = true }
 petgraph = { workspace = true }
 rustc-hash = { workspace = true }
 tempfile = { workspace = true }
 tokio = { workspace = true }
 tracing = { workspace = true }
+tracing-durations-export = { version = "0.1.0", features = ["plot"] }
 tracing-indicatif = { workspace = true }
 tracing-subscriber = { workspace = true }
-which = { workspace = true }
 url = { workspace = true }
+which = { workspace = true }
 
 [target.'cfg(target_os = "windows")'.dependencies]
-mimalloc = "0.1.39"
+mimalloc = { version = "0.1.39" }
 
 [target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64")))'.dependencies]
-tikv-jemallocator = "0.5.4"
+tikv-jemallocator = { version = "0.5.4" }
diff --git a/crates/puffin-dev/src/main.rs b/crates/puffin-dev/src/main.rs
index 433587d05..42dad6478 100644
--- a/crates/puffin-dev/src/main.rs
+++ b/crates/puffin-dev/src/main.rs
@@ -1,19 +1,23 @@
 #![allow(clippy::print_stdout, clippy::print_stderr)]
 
+use std::env;
 use std::io::IsTerminal;
+use std::path::PathBuf;
 use std::process::ExitCode;
-use std::time::Instant;
+use std::time::{Duration, Instant};
 
 use anstream::eprintln;
 use anyhow::Result;
 use clap::Parser;
-use colored::Colorize;
 use tracing::debug;
+use tracing_durations_export::plot::PlotConfig;
+use tracing_durations_export::DurationsLayerBuilder;
 use tracing_indicatif::IndicatifLayer;
 use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::util::SubscriberInitExt;
 use tracing_subscriber::EnvFilter;
 
+use owo_colors::OwoColorize;
 use resolve_many::ResolveManyArgs;
 
 use crate::build::{build, BuildArgs};
@@ -87,6 +91,34 @@ async fn run() -> Result<()> {
 
 #[tokio::main]
 async fn main() -> ExitCode {
+    let (duration_layer, _guard) = if let Ok(location) = env::var("TRACING_DURATIONS_FILE") {
+        let location = PathBuf::from(location);
+        if let Some(parent) = location.parent() {
+            fs_err::tokio::create_dir_all(&parent)
+                .await
+                .expect("Failed to create parent of TRACING_DURATIONS_FILE");
+        }
+        let plot_config = PlotConfig {
+            multi_lane: true,
+            min_length: Some(Duration::from_secs_f32(0.002)),
+            remove: Some(
+                ["get_cached_with_callback".to_string()]
+                    .into_iter()
+                    .collect(),
+            ),
+            ..PlotConfig::default()
+        };
+        let (layer, guard) = DurationsLayerBuilder::default()
+            .durations_file(&location)
+            .plot_file(location.with_extension("svg"))
+            .plot_config(plot_config)
+            .build()
+            .expect("Couldn't create TRACING_DURATIONS_FILE files");
+        (Some(layer), Some(guard))
+    } else {
+        (None, None)
+    };
+
     let indicatif_layer = IndicatifLayer::new();
     let indicatif_compatible_writer_layer = tracing_subscriber::fmt::layer()
         .with_writer(indicatif_layer.get_stderr_writer())
@@ -99,6 +131,7 @@ async fn main() -> ExitCode {
             .unwrap()
     });
     tracing_subscriber::registry()
+        .with(duration_layer)
         .with(filter_layer)
         .with(indicatif_compatible_writer_layer)
         .with(indicatif_layer)
diff --git a/crates/puffin-distribution/src/distribution_database.rs b/crates/puffin-distribution/src/distribution_database.rs
index fa3f55469..d74290f4c 100644
--- a/crates/puffin-distribution/src/distribution_database.rs
+++ b/crates/puffin-distribution/src/distribution_database.rs
@@ -139,7 +139,7 @@ impl<'a, Context: BuildContext + Send + Sync> DistributionDatabase<'a, Context>
                 }
 
                 // If the file is greater than 5MB, write it to disk; otherwise, keep it in memory.
-                let byte_size = wheel.file.size.map(|size| ByteSize::b(size as u64));
+                let byte_size = wheel.file.size.map(ByteSize::b);
                 let local_wheel = if let Some(byte_size) =
                     byte_size.filter(|byte_size| *byte_size < ByteSize::mb(5))
                 {
@@ -153,7 +153,14 @@ impl<'a, Context: BuildContext + Send + Sync> DistributionDatabase<'a, Context>
                     );
 
                     // Read into a buffer.
-                    let mut buffer = Vec::with_capacity(wheel.file.size.unwrap_or(0));
+                    let mut buffer = Vec::with_capacity(
+                        wheel
+                            .file
+                            .size
+                            .unwrap_or(0)
+                            .try_into()
+                            .expect("5MB shouldn't be bigger usize::MAX"),
+                    );
                     let mut reader = tokio::io::BufReader::new(reader.compat());
                     tokio::io::copy(&mut reader, &mut buffer).await?;
 
diff --git a/crates/puffin-distribution/src/index/built_wheel_index.rs b/crates/puffin-distribution/src/index/built_wheel_index.rs
index e457fe440..6680e4796 100644
--- a/crates/puffin-distribution/src/index/built_wheel_index.rs
+++ b/crates/puffin-distribution/src/index/built_wheel_index.rs
@@ -1,6 +1,3 @@
-use fs_err as fs;
-use tracing::warn;
-
 use distribution_types::CachedWheel;
 use platform_tags::Tags;
 use puffin_cache::CacheShard;
@@ -31,8 +28,8 @@ impl BuiltWheelIndex {
 
         for subdir in directories(&**shard) {
             match CachedWheel::from_path(&subdir) {
-                Ok(None) => {}
-                Ok(Some(dist_info)) => {
+                None => {}
+                Some(dist_info) => {
                     // Pick the wheel with the highest priority
                     let compatibility = dist_info.filename.compatibility(tags);
 
@@ -56,18 +53,6 @@ impl BuiltWheelIndex {
                         candidate = Some(dist_info);
                     }
                 }
-                Err(err) => {
-                    warn!(
-                        "Invalid cache entry at {}, removing. {err}",
-                        subdir.display()
-                    );
-                    if let Err(err) = fs::remove_dir_all(&subdir) {
-                        warn!(
-                            "Failed to remove invalid cache entry at {}: {err}",
-                            subdir.display()
-                        );
-                    }
-                }
             }
         }
 
diff --git a/crates/puffin-distribution/src/index/registry_wheel_index.rs b/crates/puffin-distribution/src/index/registry_wheel_index.rs
index 1d07eef4f..1b34069c8 100644
--- a/crates/puffin-distribution/src/index/registry_wheel_index.rs
+++ b/crates/puffin-distribution/src/index/registry_wheel_index.rs
@@ -2,9 +2,7 @@ use std::collections::hash_map::Entry;
 use std::collections::BTreeMap;
 use std::path::Path;
 
-use fs_err as fs;
 use rustc_hash::FxHashMap;
-use tracing::warn;
 
 use distribution_types::{CachedRegistryDist, CachedWheel, IndexUrls};
 use pep440_rs::Version;
@@ -110,8 +108,8 @@ impl<'a> RegistryWheelIndex<'a> {
     ) {
         for wheel_dir in directories(path.as_ref()) {
             match CachedWheel::from_path(&wheel_dir) {
-                Ok(None) => {}
-                Ok(Some(dist_info)) => {
+                None => {}
+                Some(dist_info) => {
                     let dist_info = dist_info.into_registry_dist();
 
                     // Pick the wheel with the highest priority
@@ -125,19 +123,6 @@ impl<'a> RegistryWheelIndex<'a> {
                         versions.insert(dist_info.filename.version.clone(), dist_info);
                     }
                 }
-                Err(err) => {
-                    warn!(
-                        "Invalid cache entry at {}, removing. {err}",
-                        wheel_dir.display()
-                    );
-
-                    if let Err(err) = fs::remove_dir_all(&wheel_dir) {
-                        warn!(
-                            "Failed to remove invalid cache entry at {}: {err}",
-                            wheel_dir.display()
-                        );
-                    }
-                }
             }
         }
     }
diff --git a/crates/puffin-distribution/src/lib.rs b/crates/puffin-distribution/src/lib.rs
index 38c91928c..25507c235 100644
--- a/crates/puffin-distribution/src/lib.rs
+++ b/crates/puffin-distribution/src/lib.rs
@@ -2,7 +2,7 @@ pub use distribution_database::{DistributionDatabase, DistributionDatabaseError}
 pub use download::{BuiltWheel, DiskWheel, InMemoryWheel, LocalWheel};
 pub use index::{BuiltWheelIndex, RegistryWheelIndex};
 pub use reporter::Reporter;
-pub use source_dist::{SourceDistCachedBuilder, SourceDistError};
+pub use source::{SourceDistCachedBuilder, SourceDistError};
 pub use unzip::Unzip;
 
 mod distribution_database;
@@ -11,5 +11,5 @@ mod error;
 mod index;
 mod locks;
 mod reporter;
-mod source_dist;
+mod source;
 mod unzip;
diff --git a/crates/puffin-distribution/src/source/built_wheel_metadata.rs b/crates/puffin-distribution/src/source/built_wheel_metadata.rs
new file mode 100644
index 000000000..205229515
--- /dev/null
+++ b/crates/puffin-distribution/src/source/built_wheel_metadata.rs
@@ -0,0 +1,61 @@
+use std::path::PathBuf;
+
+use tracing::warn;
+
+use distribution_filename::WheelFilename;
+use platform_tags::Tags;
+use puffin_cache::CacheEntry;
+use pypi_types::Metadata21;
+
+use crate::source::manifest::{DiskFilenameAndMetadata, Manifest};
+
+/// The information about the wheel we either just built or got from the cache.
+#[derive(Debug, Clone)]
+pub struct BuiltWheelMetadata {
+    /// The path to the built wheel.
+    pub(crate) path: PathBuf,
+    /// The expected path to the downloaded wheel's entry in the cache.
+    pub(crate) target: PathBuf,
+    /// The parsed filename.
+    pub(crate) filename: WheelFilename,
+    /// The metadata of the built wheel.
+    pub(crate) metadata: Metadata21,
+}
+
+impl BuiltWheelMetadata {
+    /// Find a compatible wheel in the cache based on the given manifest.
+    pub(crate) fn find_in_cache(
+        tags: &Tags,
+        manifest: &Manifest,
+        cache_entry: &CacheEntry,
+    ) -> Option<Self> {
+        // Find a compatible cache entry in the manifest.
+        let (filename, cached_dist) = manifest.find_compatible(tags)?;
+        let metadata = Self::from_cached(filename.clone(), cached_dist.clone(), cache_entry);
+
+        // Validate that the wheel exists on disk.
+        if !metadata.path.is_file() {
+            warn!(
+                "Wheel `{}` is present in the manifest, but not on disk",
+                metadata.path.display()
+            );
+            return None;
+        }
+
+        Some(metadata)
+    }
+
+    /// Create a [`BuiltWheelMetadata`] from a cached entry.
+    pub(crate) fn from_cached(
+        filename: WheelFilename,
+        cached_dist: DiskFilenameAndMetadata,
+        cache_entry: &CacheEntry,
+    ) -> Self {
+        Self {
+            path: cache_entry.dir().join(&cached_dist.disk_filename),
+            target: cache_entry.dir().join(filename.stem()),
+            filename,
+            metadata: cached_dist.metadata,
+        }
+    }
+}
diff --git a/crates/puffin-distribution/src/source/error.rs b/crates/puffin-distribution/src/source/error.rs
new file mode 100644
index 000000000..216f851b9
--- /dev/null
+++ b/crates/puffin-distribution/src/source/error.rs
@@ -0,0 +1,56 @@
+use thiserror::Error;
+use tokio::task::JoinError;
+use zip::result::ZipError;
+
+use distribution_filename::WheelFilenameError;
+use puffin_normalize::PackageName;
+
+/// The caller is responsible for adding the source dist information to the error chain
+#[derive(Debug, Error)]
+pub enum SourceDistError {
+    #[error("Building source distributions is disabled")]
+    NoBuild,
+
+    // Network error
+    #[error("Failed to parse URL: `{0}`")]
+    UrlParse(String, #[source] url::ParseError),
+    #[error("Git operation failed")]
+    Git(#[source] anyhow::Error),
+    #[error(transparent)]
+    Request(#[from] reqwest::Error),
+    #[error(transparent)]
+    Client(#[from] puffin_client::Error),
+
+    // Cache writing error
+    #[error("Failed to write to source dist cache")]
+    Io(#[from] std::io::Error),
+    #[error("Cache deserialization failed")]
+    Decode(#[from] rmp_serde::decode::Error),
+    #[error("Cache serialization failed")]
+    Encode(#[from] rmp_serde::encode::Error),
+
+    // Build error
+    #[error("Failed to build: {0}")]
+    Build(String, #[source] anyhow::Error),
+    #[error("Built wheel has an invalid filename")]
+    WheelFilename(#[from] WheelFilenameError),
+    #[error("Package metadata name `{metadata}` does not match given name `{given}`")]
+    NameMismatch {
+        given: PackageName,
+        metadata: PackageName,
+    },
+    #[error("Failed to parse metadata from built wheel")]
+    Metadata(#[from] pypi_types::Error),
+    #[error("Failed to read `dist-info` metadata from built wheel")]
+    DistInfo(#[from] install_wheel_rs::Error),
+    #[error("Failed to read zip archive from built wheel")]
+    Zip(#[from] ZipError),
+    #[error("Source distribution directory contains neither readable pyproject.toml nor setup.py")]
+    DirWithoutEntrypoint,
+    #[error("Failed to extract source distribution: {0}")]
+    Extract(#[from] puffin_extract::Error),
+
+    /// Should not occur; only seen when another task panicked.
+    #[error("The task executor is broken, did some other task panic?")]
+    Join(#[from] JoinError),
+}
diff --git a/crates/puffin-distribution/src/source/manifest.rs b/crates/puffin-distribution/src/source/manifest.rs
new file mode 100644
index 000000000..03c01f933
--- /dev/null
+++ b/crates/puffin-distribution/src/source/manifest.rs
@@ -0,0 +1,44 @@
+use rustc_hash::FxHashMap;
+use serde::{Deserialize, Serialize};
+
+use distribution_filename::WheelFilename;
+use platform_tags::Tags;
+use pypi_types::Metadata21;
+
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
+pub(crate) struct Manifest(FxHashMap<WheelFilename, DiskFilenameAndMetadata>);
+
+impl Manifest {
+    /// Find a compatible wheel in the cache.
+    pub(crate) fn find_compatible(
+        &self,
+        tags: &Tags,
+    ) -> Option<(&WheelFilename, &DiskFilenameAndMetadata)> {
+        self.0
+            .iter()
+            .find(|(filename, _metadata)| filename.is_compatible(tags))
+    }
+}
+
+impl std::ops::Deref for Manifest {
+    type Target = FxHashMap<WheelFilename, DiskFilenameAndMetadata>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl std::ops::DerefMut for Manifest {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub(crate) struct DiskFilenameAndMetadata {
+    /// Relative, un-normalized wheel filename in the cache, which can be different than
+    /// `WheelFilename::to_string`.
+    pub(crate) disk_filename: String,
+    /// The [`Metadata21`] of the wheel.
+    pub(crate) metadata: Metadata21,
+}
diff --git a/crates/puffin-distribution/src/source_dist.rs b/crates/puffin-distribution/src/source/mod.rs
similarity index 74%
rename from crates/puffin-distribution/src/source_dist.rs
rename to crates/puffin-distribution/src/source/mod.rs
index 2c14b1412..885f4c641 100644
--- a/crates/puffin-distribution/src/source_dist.rs
+++ b/crates/puffin-distribution/src/source/mod.rs
@@ -8,18 +8,13 @@ use anyhow::Result;
 use fs_err::tokio as fs;
 use futures::TryStreamExt;
 use reqwest::Response;
-use rustc_hash::FxHashMap;
-use serde::{Deserialize, Serialize};
 use tempfile::TempDir;
-use thiserror::Error;
-use tokio::task::JoinError;
 use tokio_util::compat::FuturesAsyncReadCompatExt;
 use tracing::{debug, info_span, instrument, warn, Instrument};
 use url::Url;
-use zip::result::ZipError;
 use zip::ZipArchive;
 
-use distribution_filename::{WheelFilename, WheelFilenameError};
+use distribution_filename::WheelFilename;
 use distribution_types::{
     DirectArchiveUrl, DirectGitUrl, Dist, GitSourceDist, LocalEditable, Name, PathSourceDist,
     RemoteSource, SourceDist,
@@ -30,147 +25,18 @@ use puffin_cache::{CacheBucket, CacheEntry, CacheShard, CachedByTimestamp, Wheel
 use puffin_client::{CachedClient, CachedClientError, DataWithCachePolicy};
 use puffin_fs::{write_atomic, LockedFile};
 use puffin_git::{Fetch, GitSource};
-use puffin_normalize::PackageName;
 use puffin_traits::{BuildContext, BuildKind, SourceBuildTrait};
 use pypi_types::Metadata21;
 
+use crate::reporter::Facade;
+use crate::source::built_wheel_metadata::BuiltWheelMetadata;
+pub use crate::source::error::SourceDistError;
+use crate::source::manifest::{DiskFilenameAndMetadata, Manifest};
 use crate::Reporter;
 
-/// The caller is responsible for adding the source dist information to the error chain
-#[derive(Debug, Error)]
-pub enum SourceDistError {
-    #[error("Building source distributions is disabled")]
-    NoBuild,
-
-    // Network error
-    #[error("Failed to parse URL: `{0}`")]
-    UrlParse(String, #[source] url::ParseError),
-    #[error("Git operation failed")]
-    Git(#[source] anyhow::Error),
-    #[error(transparent)]
-    Request(#[from] reqwest::Error),
-    #[error(transparent)]
-    Client(#[from] puffin_client::Error),
-
-    // Cache writing error
-    #[error("Failed to write to source dist cache")]
-    Io(#[from] std::io::Error),
-    #[error("Cache deserialization failed")]
-    Decode(#[from] rmp_serde::decode::Error),
-    #[error("Cache serialization failed")]
-    Encode(#[from] rmp_serde::encode::Error),
-
-    // Build error
-    #[error("Failed to build: {0}")]
-    Build(String, #[source] anyhow::Error),
-    #[error("Built wheel has an invalid filename")]
-    WheelFilename(#[from] WheelFilenameError),
-    #[error("Package metadata name `{metadata}` does not match given name `{given}`")]
-    NameMismatch {
-        given: PackageName,
-        metadata: PackageName,
-    },
-    #[error("Failed to parse metadata from built wheel")]
-    Metadata(#[from] pypi_types::Error),
-    #[error("Failed to read `dist-info` metadata from built wheel")]
-    DistInfo(#[from] install_wheel_rs::Error),
-    #[error("Failed to read zip archive from built wheel")]
-    Zip(#[from] ZipError),
-    #[error("Source distribution directory contains neither readable pyproject.toml nor setup.py")]
-    DirWithoutEntrypoint,
-    #[error("Failed to extract source distribution: {0}")]
-    Extract(#[from] puffin_extract::Error),
-
-    /// Should not occur; only seen when another task panicked.
-    #[error("The task executor is broken, did some other task panic?")]
-    Join(#[from] JoinError),
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-struct DiskFilenameAndMetadata {
-    /// Relative, un-normalized wheel filename in the cache, which can be different than
-    /// `WheelFilename::to_string`.
-    disk_filename: String,
-    metadata: Metadata21,
-}
-
-/// The information about the wheel we either just built or got from the cache.
-#[derive(Debug, Clone)]
-pub struct BuiltWheelMetadata {
-    /// The path to the built wheel.
-    pub path: PathBuf,
-    /// The expected path to the downloaded wheel's entry in the cache.
-    pub target: PathBuf,
-    /// The parsed filename.
-    pub filename: WheelFilename,
-    /// The metadata of the built wheel.
-    pub metadata: Metadata21,
-}
-
-impl BuiltWheelMetadata {
-    /// Find a compatible wheel in the cache based on the given manifest.
-    fn find_in_cache(tags: &Tags, manifest: &Manifest, cache_entry: &CacheEntry) -> Option<Self> {
-        // Find a compatible cache entry in the manifest.
-        let (filename, cached_dist) = manifest.find_compatible(tags)?;
-        let metadata = Self::from_cached(filename.clone(), cached_dist.clone(), cache_entry);
-
-        // Validate that the wheel exists on disk.
-        if !metadata.path.is_file() {
-            warn!(
-                "Wheel `{}` is present in the manifest, but not on disk",
-                metadata.path.display()
-            );
-            return None;
-        }
-
-        Some(metadata)
-    }
-
-    /// Create a [`BuiltWheelMetadata`] from a cached entry.
-    fn from_cached(
-        filename: WheelFilename,
-        cached_dist: DiskFilenameAndMetadata,
-        cache_entry: &CacheEntry,
-    ) -> Self {
-        Self {
-            path: cache_entry.dir().join(&cached_dist.disk_filename),
-            target: cache_entry.dir().join(filename.stem()),
-            filename,
-            metadata: cached_dist.metadata,
-        }
-    }
-}
-
-#[derive(Debug, Default, Clone, Serialize, Deserialize)]
-struct Manifest(FxHashMap<WheelFilename, DiskFilenameAndMetadata>);
-
-impl Manifest {
-    /// Initialize a [`Manifest`] from an iterator over entries.
-    fn from_iter(iter: impl IntoIterator<Item = (WheelFilename, DiskFilenameAndMetadata)>) -> Self {
-        Self(iter.into_iter().collect())
-    }
-
-    /// Find a compatible wheel in the cache.
-    fn find_compatible(&self, tags: &Tags) -> Option<(&WheelFilename, &DiskFilenameAndMetadata)> {
-        self.0
-            .iter()
-            .find(|(filename, _metadata)| filename.is_compatible(tags))
-    }
-}
-
-impl std::ops::Deref for Manifest {
-    type Target = FxHashMap<WheelFilename, DiskFilenameAndMetadata>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl std::ops::DerefMut for Manifest {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
+mod built_wheel_metadata;
+mod error;
+mod manifest;
 
 /// Fetch and build a source distribution from a remote source, or from a local cache.
 pub struct SourceDistCachedBuilder<'a, T: BuildContext> {
@@ -275,53 +141,31 @@ impl<'a, T: BuildContext> SourceDistCachedBuilder<'a, T> {
     ) -> Result<BuiltWheelMetadata, SourceDistError> {
         let cache_entry = cache_shard.entry(METADATA);
 
-        let download_and_build = |response| {
+        let download = |response| {
             async {
                 // At this point, we're seeing a new or updated source distribution; delete all
-                // wheels, and rebuild.
+                // wheels, and redownload.
                 match fs::remove_dir_all(&cache_entry.dir()).await {
                     Ok(()) => debug!("Cleared built wheels and metadata for {source_dist}"),
                     Err(err) if err.kind() == std::io::ErrorKind::NotFound => (),
                     Err(err) => return Err(err.into()),
                 }
 
-                debug!("Downloading and building source distribution: {source_dist}");
-                let task = self
-                    .reporter
-                    .as_ref()
-                    .map(|reporter| reporter.on_build_start(source_dist));
+                debug!("Downloading source distribution: {source_dist}");
 
                 // Download the source distribution.
                 let source_dist_entry = cache_shard.entry(filename);
-                let cache_dir = self
-                    .persist_source_dist_url(response, source_dist, filename, &source_dist_entry)
+                self.persist_source_dist_url(response, source_dist, filename, &source_dist_entry)
                     .await?;
 
-                // Build the source distribution.
-                let (disk_filename, wheel_filename, metadata) = self
-                    .build_source_dist(source_dist, cache_dir, subdirectory, &cache_entry)
-                    .await?;
-
-                if let Some(task) = task {
-                    if let Some(reporter) = self.reporter.as_ref() {
-                        reporter.on_build_complete(source_dist, task);
-                    }
-                }
-
-                Ok(Manifest::from_iter([(
-                    wheel_filename,
-                    DiskFilenameAndMetadata {
-                        disk_filename,
-                        metadata,
-                    },
-                )]))
+                Ok(Manifest::default())
             }
-            .instrument(info_span!("download_and_build", source_dist = %source_dist))
+            .instrument(info_span!("download", source_dist = %source_dist))
         };
         let req = self.cached_client.uncached().get(url.clone()).build()?;
         let manifest = self
             .cached_client
-            .get_cached_with_callback(req, &cache_entry, download_and_build)
+            .get_cached_with_callback(req, &cache_entry, download)
             .await
             .map_err(|err| match err {
                 CachedClientError::Callback(err) => err,
@@ -329,10 +173,10 @@ impl<'a, T: BuildContext> SourceDistCachedBuilder<'a, T> {
             })?;
 
         // If the cache contains a compatible wheel, return it.
-        if let Some(metadata) =
+        if let Some(built_wheel) =
             BuiltWheelMetadata::find_in_cache(self.tags, &manifest, &cache_entry)
         {
-            return Ok(metadata);
+            return Ok(built_wheel);
         }
 
         // At this point, we're seeing cached metadata (as in, we have an up-to-date source
@@ -342,23 +186,15 @@ impl<'a, T: BuildContext> SourceDistCachedBuilder<'a, T> {
             .as_ref()
             .map(|reporter| reporter.on_build_start(source_dist));
 
-        // Start by downloading the source distribution.
-        let response = self
-            .cached_client
-            .uncached()
-            .get(url.clone())
-            .send()
-            .await
-            .map_err(puffin_client::Error::RequestMiddlewareError)?;
-
-        let source_dist_entry = cache_shard.entry(filename);
-        let cache_dir = self
-            .persist_source_dist_url(response, source_dist, filename, &source_dist_entry)
-            .await?;
-
         // Build the source distribution.
+        let source_dist_entry = cache_shard.entry(filename);
         let (disk_filename, wheel_filename, metadata) = self
-            .build_source_dist(source_dist, cache_dir, subdirectory, &cache_entry)
+            .build_source_dist(
+                source_dist,
+                source_dist_entry.path(),
+                subdirectory,
+                &cache_entry,
+            )
             .await?;
 
         if let Some(task) = task {
@@ -440,10 +276,10 @@ impl<'a, T: BuildContext> SourceDistCachedBuilder<'a, T> {
             .unwrap_or_default();
 
         // If the cache contains a compatible wheel, return it.
-        if let Some(metadata) =
+        if let Some(built_wheel) =
             BuiltWheelMetadata::find_in_cache(self.tags, &manifest, &cache_entry)
         {
-            return Ok(metadata);
+            return Ok(built_wheel);
         }
 
         // Otherwise, we need to build a wheel.
@@ -516,10 +352,10 @@ impl<'a, T: BuildContext> SourceDistCachedBuilder<'a, T> {
         let mut manifest = Self::read_metadata(&cache_entry).await?.unwrap_or_default();
 
         // If the cache contains a compatible wheel, return it.
-        if let Some(metadata) =
+        if let Some(built_wheel) =
             BuiltWheelMetadata::find_in_cache(self.tags, &manifest, &cache_entry)
         {
-            return Ok(metadata);
+            return Ok(built_wheel);
         }
 
         let task = self
@@ -799,32 +635,3 @@ fn read_metadata(
     let dist_info = read_dist_info(filename, &mut archive)?;
     Ok(Metadata21::parse(&dist_info)?)
 }
-
-trait SourceDistReporter: Send + Sync {
-    /// Callback to invoke when a repository checkout begins.
-    fn on_checkout_start(&self, url: &Url, rev: &str) -> usize;
-
-    /// Callback to invoke when a repository checkout completes.
-    fn on_checkout_complete(&self, url: &Url, rev: &str, index: usize);
-}
-
-/// A facade for converting from [`Reporter`] to [`puffin_git::Reporter`].
-struct Facade {
-    reporter: Arc<dyn Reporter>,
-}
-
-impl From<Arc<dyn Reporter>> for Facade {
-    fn from(reporter: Arc<dyn Reporter>) -> Self {
-        Self { reporter }
-    }
-}
-
-impl puffin_git::Reporter for Facade {
-    fn on_checkout_start(&self, url: &Url, rev: &str) -> usize {
-        self.reporter.on_checkout_start(url, rev)
-    }
-
-    fn on_checkout_complete(&self, url: &Url, rev: &str, index: usize) {
-        self.reporter.on_checkout_complete(url, rev, index);
-    }
-}
diff --git a/crates/puffin-installer/src/downloader.rs b/crates/puffin-installer/src/downloader.rs
index 91e8c3561..9ba47a6f0 100644
--- a/crates/puffin-installer/src/downloader.rs
+++ b/crates/puffin-installer/src/downloader.rs
@@ -87,9 +87,8 @@ impl<'a, Context: BuildContext + Send + Sync> Downloader<'a, Context> {
         in_flight: &OnceMap<PathBuf, Result<CachedDist, String>>,
     ) -> Result<Vec<CachedDist>, Error> {
         // Sort the distributions by size.
-        distributions.sort_unstable_by_key(|distribution| {
-            Reverse(distribution.size().unwrap_or(usize::MAX))
-        });
+        distributions
+            .sort_unstable_by_key(|distribution| Reverse(distribution.size().unwrap_or(u64::MAX)));
 
         let wheels = self
             .download_stream(distributions, in_flight)
diff --git a/crates/puffin-installer/src/installer.rs b/crates/puffin-installer/src/installer.rs
index 10529e812..2bd1bd50a 100644
--- a/crates/puffin-installer/src/installer.rs
+++ b/crates/puffin-installer/src/installer.rs
@@ -1,5 +1,6 @@
 use anyhow::{Context, Error, Result};
 use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
+use tracing::instrument;
 
 use distribution_types::CachedDist;
 use puffin_interpreter::Virtualenv;
@@ -36,6 +37,7 @@ impl<'a> Installer<'a> {
     }
 
     /// Install a set of wheels into a Python virtual environment.
+    #[instrument(skip_all, fields(num_wheels = %wheels.len()))]
     pub fn install(self, wheels: &[CachedDist]) -> Result<()> {
         tokio::task::block_in_place(|| {
             wheels.par_iter().try_for_each(|wheel| {
diff --git a/crates/puffin-installer/src/site_packages.rs b/crates/puffin-installer/src/site_packages.rs
index fef9b8588..67737d576 100644
--- a/crates/puffin-installer/src/site_packages.rs
+++ b/crates/puffin-installer/src/site_packages.rs
@@ -38,10 +38,10 @@ impl<'a> SitePackages<'a> {
         for entry in fs::read_dir(venv.site_packages())? {
             let entry = entry?;
             if entry.file_type()?.is_dir() {
-                let Some(dist_info) =
-                    InstalledDist::try_from_path(&entry.path()).with_context(|| {
-                        format!("Failed to read metadata: from {}", entry.path().display())
-                    })?
+                let path = entry.path();
+
+                let Some(dist_info) = InstalledDist::try_from_path(&path)
+                    .with_context(|| format!("Failed to read metadata: from {}", path.display()))?
                 else {
                     continue;
                 };
@@ -55,7 +55,7 @@ impl<'a> SitePackages<'a> {
                         "Found duplicate package in environment: {} ({} vs. {})",
                         existing.name(),
                         existing.path().display(),
-                        entry.path().display()
+                        path.display()
                     );
                 }
 
@@ -67,7 +67,7 @@ impl<'a> SitePackages<'a> {
                             "Found duplicate editable in environment: {} ({} vs. {})",
                             existing.name(),
                             existing.path().display(),
-                            entry.path().display()
+                            path.display()
                         );
                     }
                 }
diff --git a/crates/puffin-resolver/Cargo.toml b/crates/puffin-resolver/Cargo.toml
index 8a1fdf9a2..7f0705503 100644
--- a/crates/puffin-resolver/Cargo.toml
+++ b/crates/puffin-resolver/Cargo.toml
@@ -32,17 +32,18 @@ puffin-traits = { path = "../puffin-traits" }
 pypi-types = { path = "../pypi-types" }
 requirements-txt = { path = "../requirements-txt" }
 
+anstream = { workspace = true }
 anyhow = { workspace = true }
 bitflags = { workspace = true }
 chrono = { workspace = true }
 clap = { workspace = true, features = ["derive"], optional = true }
-colored = { workspace = true }
 derivative = { workspace = true }
 fs-err = { workspace = true, features = ["tokio"] }
 futures = { workspace = true }
 http-cache-semantics = { workspace = true }
 itertools = { workspace = true }
 once_cell = { workspace = true }
+owo-colors = { workspace = true }
 petgraph = { workspace = true }
 pubgrub = { workspace = true }
 reqwest = { workspace = true }
diff --git a/crates/puffin-resolver/src/candidate_selector.rs b/crates/puffin-resolver/src/candidate_selector.rs
index 8d27b6adf..2ebed7faa 100644
--- a/crates/puffin-resolver/src/candidate_selector.rs
+++ b/crates/puffin-resolver/src/candidate_selector.rs
@@ -256,7 +256,7 @@ impl<'a> Candidate<'a> {
         self.file.install()
     }
 
-    /// If the candidate doesn't the given requirement, return the version specifiers.
+    /// If the candidate doesn't match the given requirement, return the version specifiers.
     pub(crate) fn validate(&self, requirement: &PythonRequirement) -> Option<&VersionSpecifiers> {
         // Validate against the _installed_ file. It's fine if the _resolved_ file is incompatible,
         // since it could be an incompatible wheel. (If the resolved file is an incompatible source
diff --git a/crates/puffin-resolver/src/pubgrub/report.rs b/crates/puffin-resolver/src/pubgrub/report.rs
index e736f1058..2ae80e207 100644
--- a/crates/puffin-resolver/src/pubgrub/report.rs
+++ b/crates/puffin-resolver/src/pubgrub/report.rs
@@ -1,13 +1,15 @@
-use crate::candidate_selector::CandidateSelector;
-use crate::prerelease_mode::PreReleaseStrategy;
-use colored::Colorize;
+use std::borrow::Cow;
+
 use derivative::Derivative;
+use owo_colors::OwoColorize;
 use pubgrub::range::Range;
 use pubgrub::report::{DerivationTree, External, ReportFormatter};
 use pubgrub::term::Term;
 use pubgrub::type_aliases::Map;
 use rustc_hash::{FxHashMap, FxHashSet};
-use std::borrow::Cow;
+
+use crate::candidate_selector::CandidateSelector;
+use crate::prerelease_mode::PreReleaseStrategy;
 
 use super::{PubGrubPackage, PubGrubVersion};
 
@@ -31,9 +33,11 @@ impl ReportFormatter<PubGrubPackage, Range<PubGrubVersion>> for PubGrubReportFor
             External::NoVersions(package, set) => {
                 let set = self.simplify_set(set, package);
                 if set.as_ref() == &Range::full() {
-                    format!("there is no available version for {package}")
+                    format!("there are no versions of {package}")
+                } else if set.as_singleton().is_some() {
+                    format!("there is no version of {package}{set}")
                 } else {
-                    format!("there is no version of {package} available matching {set}")
+                    format!("there are no versions of {package}{set}")
                 }
             }
             External::UnavailableDependencies(package, set) => {
@@ -41,7 +45,7 @@ impl ReportFormatter<PubGrubPackage, Range<PubGrubVersion>> for PubGrubReportFor
                 if set.as_ref() == &Range::full() {
                     format!("dependencies of {package} are unavailable")
                 } else {
-                    format!("dependencies of {package} at version {set} are unavailable")
+                    format!("dependencies of {package}{set} are unavailable")
                 }
             }
             External::UnusableDependencies(package, set, reason) => {
@@ -123,7 +127,10 @@ impl ReportFormatter<PubGrubPackage, Range<PubGrubVersion>> for PubGrubReportFor
                 &External::FromDependencyOf((*p2).clone(), r2.clone(), (*p1).clone(), r1.clone()),
             ),
             slice => {
-                let str_terms: Vec<_> = slice.iter().map(|(p, t)| format!("{p} {t}")).collect();
+                let str_terms: Vec<_> = slice
+                    .iter()
+                    .map(|(p, t)| format!("{p}{}", PubGrubTerm::from_term((*t).clone())))
+                    .collect();
                 str_terms.join(", ") + " are incompatible"
             }
         }
@@ -153,39 +160,57 @@ impl PubGrubReportFormatter<'_> {
         derivation_tree: &DerivationTree<PubGrubPackage, Range<PubGrubVersion>>,
         selector: &CandidateSelector,
     ) -> FxHashSet<PubGrubHint> {
+        /// Returns `true` if pre-releases were allowed for a package.
+        fn allowed_prerelease(package: &PubGrubPackage, selector: &CandidateSelector) -> bool {
+            match selector.prerelease_strategy() {
+                PreReleaseStrategy::Disallow => false,
+                PreReleaseStrategy::Allow => true,
+                PreReleaseStrategy::IfNecessary => false,
+                PreReleaseStrategy::Explicit(packages) => {
+                    if let PubGrubPackage::Package(package, ..) = package {
+                        packages.contains(package)
+                    } else {
+                        false
+                    }
+                }
+                PreReleaseStrategy::IfNecessaryOrExplicit(packages) => {
+                    if let PubGrubPackage::Package(package, ..) = package {
+                        packages.contains(package)
+                    } else {
+                        false
+                    }
+                }
+            }
+        }
+
         let mut hints = FxHashSet::default();
         match derivation_tree {
             DerivationTree::External(external) => match external {
                 External::NoVersions(package, set) => {
-                    // Determine whether a pre-release marker appeared in the version requirements.
                     if set.bounds().any(PubGrubVersion::any_prerelease) {
-                        // Determine whether pre-releases were allowed for this package.
-                        let allowed_prerelease = match selector.prerelease_strategy() {
-                            PreReleaseStrategy::Disallow => false,
-                            PreReleaseStrategy::Allow => true,
-                            PreReleaseStrategy::IfNecessary => false,
-                            PreReleaseStrategy::Explicit(packages) => {
-                                if let PubGrubPackage::Package(package, ..) = package {
-                                    packages.contains(package)
-                                } else {
-                                    false
-                                }
-                            }
-                            PreReleaseStrategy::IfNecessaryOrExplicit(packages) => {
-                                if let PubGrubPackage::Package(package, ..) = package {
-                                    packages.contains(package)
-                                } else {
-                                    false
-                                }
-                            }
-                        };
-
-                        if !allowed_prerelease {
-                            hints.insert(PubGrubHint::NoVersionsWithPreRelease {
+                        // A pre-release marker appeared in the version requirements.
+                        if !allowed_prerelease(package, selector) {
+                            hints.insert(PubGrubHint::PreReleaseRequested {
                                 package: package.clone(),
                                 range: self.simplify_set(set, package).into_owned(),
                             });
                         }
+                    } else if let Some(version) =
+                        self.available_versions.get(package).and_then(|versions| {
+                            versions
+                                .iter()
+                                .rev()
+                                .filter(|version| version.any_prerelease())
+                                .find(|version| set.contains(version))
+                        })
+                    {
+                        // There are pre-release versions available for the package.
+                        if !allowed_prerelease(package, selector) {
+                            hints.insert(PubGrubHint::PreReleaseAvailable {
+                                package: package.clone(),
+                                version: version.clone(),
+                            });
+                        }
                     }
                 }
                 External::NotRoot(..) => {}
@@ -205,9 +230,17 @@ impl PubGrubReportFormatter<'_> {
 #[derive(Derivative, Debug, Clone)]
 #[derivative(Hash, PartialEq, Eq)]
 pub(crate) enum PubGrubHint {
-    /// A package was requested with a pre-release marker, but pre-releases weren't enabled for
-    /// that package.
-    NoVersionsWithPreRelease {
+    /// There are pre-release versions available for a package, but pre-releases weren't enabled
+    /// for that package.
+    ///
+    PreReleaseAvailable {
+        package: PubGrubPackage,
+        #[derivative(PartialEq = "ignore", Hash = "ignore")]
+        version: PubGrubVersion,
+    },
+    /// A requirement included a pre-release marker, but pre-releases weren't enabled for that
+    /// package.
+    PreReleaseRequested {
         package: PubGrubPackage,
         #[derivative(PartialEq = "ignore", Hash = "ignore")]
         range: Range<PubGrubVersion>,
@@ -217,16 +250,52 @@ pub(crate) enum PubGrubHint {
 impl std::fmt::Display for PubGrubHint {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            PubGrubHint::NoVersionsWithPreRelease { package, range } => {
+            PubGrubHint::PreReleaseAvailable { package, version } => {
+                write!(
+                    f,
+                    "{}{} Pre-releases are available for {} in the requested range (e.g., {}), but pre-releases weren't enabled (try: `--prerelease=allow`)",
+                    "hint".bold().cyan(),
+                    ":".bold(),
+                    package.bold(),
+                    version.bold()
+                )
+            }
+            PubGrubHint::PreReleaseRequested { package, range } => {
                 write!(
                     f,
                     "{}{} {} was requested with a pre-release marker (e.g., {}), but pre-releases weren't enabled (try: `--prerelease=allow`)",
                     "hint".bold().cyan(),
                     ":".bold(),
-                    format!("{package}").bold(),
-                    format!("{range}").bold(),
+                    package.bold(),
+                    range.bold()
                 )
             }
         }
     }
 }
+
+/// A derivative of the [Term] type with custom formatting.
+struct PubGrubTerm {
+    inner: Term<Range<PubGrubVersion>>,
+}
+
+impl std::fmt::Display for PubGrubTerm {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match &self.inner {
+            Term::Positive(set) => write!(f, "{set}"),
+            Term::Negative(set) => {
+                if let Some(version) = set.as_singleton() {
+                    write!(f, "!={version}")
+                } else {
+                    write!(f, "!( {set} )")
+                }
+            }
+        }
+    }
+}
+
+impl PubGrubTerm {
+    fn from_term(term: Term<Range<PubGrubVersion>>) -> PubGrubTerm {
+        PubGrubTerm { inner: term }
+    }
+}
diff --git a/crates/puffin-resolver/src/resolution.rs b/crates/puffin-resolver/src/resolution.rs
index e9c4fb3a8..d9ffa0eb4 100644
--- a/crates/puffin-resolver/src/resolution.rs
+++ b/crates/puffin-resolver/src/resolution.rs
@@ -1,7 +1,7 @@
 use std::hash::BuildHasherDefault;
 
 use anyhow::Result;
-use colored::Colorize;
+use owo_colors::OwoColorize;
 use petgraph::visit::EdgeRef;
 use petgraph::Direction;
 use pubgrub::range::Range;
diff --git a/crates/puffin-resolver/tests/resolver.rs b/crates/puffin-resolver/tests/resolver.rs
index 5272694c0..a46040e26 100644
--- a/crates/puffin-resolver/tests/resolver.rs
+++ b/crates/puffin-resolver/tests/resolver.rs
@@ -114,6 +114,13 @@ async fn resolve(
     Ok(resolver.resolve().await?)
 }
 
+macro_rules! assert_snapshot {
+    ($value:expr, @$snapshot:literal) => {
+        let snapshot = anstream::adapter::strip_str(&format!("{}", $value)).to_string();
+        insta::assert_snapshot!(&snapshot, @$snapshot)
+    };
+}
+
 #[tokio::test]
 async fn black() -> Result<()> {
     let manifest = Manifest::simple(vec![Requirement::from_str("black<=23.9.1").unwrap()]);
@@ -125,7 +132,7 @@ async fn black() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -155,7 +162,7 @@ async fn black_colorama() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -187,7 +194,7 @@ async fn black_tensorboard() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -215,7 +222,7 @@ async fn black_python_310() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_310, &TAGS_310).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -256,7 +263,7 @@ async fn black_mypy_extensions() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -293,7 +300,7 @@ async fn black_mypy_extensions_extra() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -330,7 +337,7 @@ async fn black_flake8() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -358,7 +365,7 @@ async fn black_lowest() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==22.1.0
     click==8.0.0
         # via black
@@ -386,7 +393,7 @@ async fn black_lowest_direct() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==22.1.0
     click==8.1.7
         # via black
@@ -421,7 +428,7 @@ async fn black_respect_preference() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.0
     click==8.1.7
         # via black
@@ -456,7 +463,7 @@ async fn black_ignore_preference() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     black==23.9.1
     click==8.1.7
         # via black
@@ -486,7 +493,11 @@ async fn black_disallow_prerelease() -> Result<()> {
         .await
         .unwrap_err();
 
-    insta::assert_display_snapshot!(err, @"Because there is no version of black available matching <=20.0 and root depends on black<=20.0, version solving failed.");
+    assert_snapshot!(err, @r###"
+    Because there are no versions of black<=20.0 and root depends on black<=20.0, version solving failed.
+
+    hint: Pre-releases are available for black in the requested range (e.g., 19.10b0), but pre-releases weren't enabled (try: `--prerelease=allow`)
+    "###);
 
     Ok(())
 }
@@ -504,7 +515,11 @@ async fn black_allow_prerelease_if_necessary() -> Result<()> {
         .await
         .unwrap_err();
 
-    insta::assert_display_snapshot!(err, @"Because there is no version of black available matching <=20.0 and root depends on black<=20.0, version solving failed.");
+    assert_snapshot!(err, @r###"
+    Because there are no versions of black<=20.0 and root depends on black<=20.0, version solving failed.
+
+    hint: Pre-releases are available for black in the requested range (e.g., 19.10b0), but pre-releases weren't enabled (try: `--prerelease=allow`)
+    "###);
 
     Ok(())
 }
@@ -520,7 +535,7 @@ async fn pylint_disallow_prerelease() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     astroid==3.0.1
         # via pylint
     isort==5.12.0
@@ -544,7 +559,7 @@ async fn pylint_allow_prerelease() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     astroid==3.0.1
         # via pylint
     isort==6.0.0b2
@@ -571,7 +586,7 @@ async fn pylint_allow_explicit_prerelease_without_marker() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     astroid==3.0.1
         # via pylint
     isort==5.12.0
@@ -598,7 +613,7 @@ async fn pylint_allow_explicit_prerelease_with_marker() -> Result<()> {
 
     let resolution = resolve(manifest, options, &MARKERS_311, &TAGS_311).await?;
 
-    insta::assert_display_snapshot!(resolution, @r###"
+    assert_snapshot!(resolution, @r###"
     astroid==3.0.1
         # via pylint
     isort==6.0.0b2
@@ -626,8 +641,8 @@ async fn msgraph_sdk() -> Result<()> {
         .await
         .unwrap_err();
 
-    insta::assert_display_snapshot!(err, @r###"
-    Because there is no version of msgraph-core available matching >=1.0.0a2 and msgraph-sdk==1.0.0 depends on msgraph-core>=1.0.0a2, msgraph-sdk==1.0.0 is forbidden.
+    assert_snapshot!(err, @r###"
+    Because there are no versions of msgraph-core>=1.0.0a2 and msgraph-sdk==1.0.0 depends on msgraph-core>=1.0.0a2, msgraph-sdk==1.0.0 is forbidden.
     And because root depends on msgraph-sdk==1.0.0, version solving failed.
 
     hint: msgraph-core was requested with a pre-release marker (e.g., >=1.0.0a2), but pre-releases weren't enabled (try: `--prerelease=allow`)
diff --git a/crates/puffin-warnings/Cargo.toml b/crates/puffin-warnings/Cargo.toml
index aec343681..0d84af01d 100644
--- a/crates/puffin-warnings/Cargo.toml
+++ b/crates/puffin-warnings/Cargo.toml
@@ -14,6 +14,6 @@ workspace = true
 
 [dependencies]
 anstream = { workspace = true }
-colored = { workspace = true }
 once_cell = { workspace = true }
+owo-colors = { workspace = true }
 rustc-hash = { workspace = true }
diff --git a/crates/puffin-warnings/src/lib.rs b/crates/puffin-warnings/src/lib.rs
index 116c61dd9..437149c41 100644
--- a/crates/puffin-warnings/src/lib.rs
+++ b/crates/puffin-warnings/src/lib.rs
@@ -4,11 +4,9 @@ use std::sync::Mutex;
 // macro hygiene: The user might not have direct dependencies on those crates
 #[doc(hidden)]
 pub use anstream;
-
-#[doc(hidden)]
-pub use colored;
-
 use once_cell::sync::Lazy;
+#[doc(hidden)]
+pub use owo_colors;
 use rustc_hash::FxHashSet;
 
 /// Whether user-facing warnings are enabled.
@@ -24,7 +22,7 @@ pub fn enable() {
 macro_rules! warn_user {
     ($($arg:tt)*) => {
         use $crate::anstream::eprintln;
-        use $crate::colored::Colorize;
+        use $crate::owo_colors::OwoColorize;
 
         if $crate::ENABLED.load(std::sync::atomic::Ordering::SeqCst) {
             let message = format!("{}", format_args!($($arg)*));
@@ -42,14 +40,13 @@ pub static WARNINGS: Lazy<Mutex<FxHashSet<String>>> = Lazy::new(Mutex::default);
 macro_rules! warn_user_once {
     ($($arg:tt)*) => {
         use $crate::anstream::eprintln;
-        use $crate::colored::Colorize;
+        use $crate::owo_colors::OwoColorize;
 
         if $crate::ENABLED.load(std::sync::atomic::Ordering::SeqCst) {
             if let Ok(mut states) = $crate::WARNINGS.lock() {
                 let message = format!("{}", format_args!($($arg)*));
-                let formatted = message.bold();
-                if states.insert(message) {
-                    eprintln!("{}{} {formatted}", "warning".yellow().bold(), ":".bold());
+                if states.insert(message.clone()) {
+                    eprintln!("{}{} {}", "warning".yellow().bold(), ":".bold(), message.bold());
                 }
             }
         }
diff --git a/crates/pypi-types/src/lenient_requirement.rs b/crates/pypi-types/src/lenient_requirement.rs
index 027ff68c2..88c9a7c13 100644
--- a/crates/pypi-types/src/lenient_requirement.rs
+++ b/crates/pypi-types/src/lenient_requirement.rs
@@ -3,10 +3,10 @@ use std::str::FromStr;
 use once_cell::sync::Lazy;
 use regex::Regex;
 use serde::{de, Deserialize, Deserializer, Serialize};
+use tracing::warn;
 
 use pep440_rs::{VersionSpecifiers, VersionSpecifiersParseError};
 use pep508_rs::{Pep508Error, Requirement};
-use puffin_warnings::warn_user_once;
 
 /// Ex) `>=7.2.0<8.0.0`
 static MISSING_COMMA: Lazy<Regex> = Lazy::new(|| Regex::new(r"(\d)([<>=~^!])").unwrap());
@@ -62,7 +62,7 @@ fn parse_with_fixups<Err, T: FromStr<Err = Err>>(input: &str, type_name: &str) -
             }
 
             if let Ok(requirement) = T::from_str(&patched_input) {
-                warn_user_once!(
+                warn!(
                     "Fixing invalid {type_name} by {} (before: `{input}`; after: `{patched_input}`)",
                     messages.join(", ")
                 );
diff --git a/crates/pypi-types/src/simple_json.rs b/crates/pypi-types/src/simple_json.rs
index 6c932900e..2832fcb2b 100644
--- a/crates/pypi-types/src/simple_json.rs
+++ b/crates/pypi-types/src/simple_json.rs
@@ -1,9 +1,9 @@
 use std::str::FromStr;
 
 use chrono::{DateTime, Utc};
-use serde::{de, Deserialize, Deserializer, Serialize};
+use serde::{Deserialize, Deserializer, Serialize};
 
-use pep440_rs::VersionSpecifiers;
+use pep440_rs::{VersionSpecifiers, VersionSpecifiersParseError};
 
 use crate::lenient_requirement::LenientVersionSpecifiers;
 
@@ -23,11 +23,12 @@ pub struct File {
     pub dist_info_metadata: Option<DistInfoMetadata>,
     pub filename: String,
     pub hashes: Hashes,
-    /// Note: Deserialized with [`LenientVersionSpecifiers`] since there are a number of invalid
-    /// versions on pypi
+    /// There are a number of invalid specifiers on pypi, so we first try to parse it into a [`VersionSpecifiers`]
+    /// according to spec (PEP 440), then a [`LenientVersionSpecifiers`] with fixup for some common problems and if this
+    /// still fails, we skip the file when creating a version map.
     #[serde(default, deserialize_with = "deserialize_version_specifiers_lenient")]
-    pub requires_python: Option<VersionSpecifiers>,
-    pub size: Option<usize>,
+    pub requires_python: Option<Result<VersionSpecifiers, VersionSpecifiersParseError>>,
+    pub size: Option<u64>,
     pub upload_time: Option<DateTime<Utc>>,
     pub url: String,
     pub yanked: Option<Yanked>,
@@ -35,7 +36,7 @@ pub struct File {
 
 fn deserialize_version_specifiers_lenient<'de, D>(
     deserializer: D,
-) -> Result<Option<VersionSpecifiers>, D::Error>
+) -> Result<Option<Result<VersionSpecifiers, VersionSpecifiersParseError>>, D::Error>
 where
     D: Deserializer<'de>,
 {
@@ -43,8 +44,9 @@ where
     let Some(string) = maybe_string else {
         return Ok(None);
     };
-    let lenient = LenientVersionSpecifiers::from_str(&string).map_err(de::Error::custom)?;
-    Ok(Some(lenient.into()))
+    Ok(Some(
+        LenientVersionSpecifiers::from_str(&string).map(Into::into),
+    ))
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
diff --git a/scripts/bench/__main__.py b/scripts/bench/__main__.py
index 386b0d659..3b7daeeba 100644
--- a/scripts/bench/__main__.py
+++ b/scripts/bench/__main__.py
@@ -10,7 +10,8 @@ To set up the required environment, run:
 
     cargo build --release
     ./target/release/puffin venv
-    ./target/release/puffin pip-sync ./scripts/requirements.txt
+    ./target/release/puffin pip-sync ./scripts/bench/requirements.txt
+    source .venv/bin/activate
 
 Example usage:
 
diff --git a/scripts/benchmarks/venv.sh b/scripts/benchmarks/venv.sh
new file mode 100755
index 000000000..8aa2c1c49
--- /dev/null
+++ b/scripts/benchmarks/venv.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+###
+# Benchmark the virtualenv initialization against `virtualenv`.
+#
+# Example usage:
+#
+#   ./scripts/benchmarks/venv.sh ./scripts/benchmarks/requirements.txt
+###
+
+set -euxo pipefail
+
+###
+# Create a virtual environment without seed packages.
+###
+hyperfine --runs 20 --warmup 3 \
+    --prepare "rm -rf .venv" \
+    "./target/release/puffin venv --no-cache" \
+    --prepare "rm -rf .venv" \
+    "virtualenv --without-pip .venv" \
+    --prepare "rm -rf .venv" \
+    "python -m venv --without-pip .venv"
+
+###
+# Create a virtual environment with seed packages.
+#
+# TODO(charlie): Support seed packages in `puffin venv`.
+###
+hyperfine --runs 20 --warmup 3 \
+    --prepare "rm -rf .venv" \
+    "virtualenv .venv" \
+    --prepare "rm -rf .venv" \
+    "python -m venv .venv"
diff --git a/scripts/compare_with_pip/compare_with_pip.py b/scripts/compare_with_pip/compare_with_pip.py
index cfa6f12b5..8fa8ccb30 100755
--- a/scripts/compare_with_pip/compare_with_pip.py
+++ b/scripts/compare_with_pip/compare_with_pip.py
@@ -61,7 +61,7 @@ def resolve_puffin(targets: list[str], venv: Path, profile: str = "dev") -> list
     output = check_output(
         [
             project_root.joinpath("target").joinpath(target_profile).joinpath("puffin-dev"),
-            "resolve-cli",
+            "resolve",
             "--format",
             "expanded",
             *targets,
diff --git a/scripts/editable-installs/black_editable/.gitignore b/scripts/editable-installs/black_editable/.gitignore
new file mode 100644
index 000000000..3a8816c9e
--- /dev/null
+++ b/scripts/editable-installs/black_editable/.gitignore
@@ -0,0 +1,162 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm-project.org/#use-with-ide
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
diff --git a/scripts/editable-installs/black_editable/pyproject.toml b/scripts/editable-installs/black_editable/pyproject.toml
index ff10712d5..ca17596ae 100644
--- a/scripts/editable-installs/black_editable/pyproject.toml
+++ b/scripts/editable-installs/black_editable/pyproject.toml
@@ -1,12 +1,18 @@
-[tool.poetry]
+[project]
 name = "black"
 version = "0.1.0"
-description = ""
-authors = ["konstin <konstin@mailbox.org>"]
-
-[tool.poetry.dependencies]
-python = "^3.10"
+description = "Default template for PDM package"
+authors = [
+    {name = "konstin", email = "konstin@mailbox.org"},
+]
+dependencies = []
+requires-python = ">=3.11,<3.13"
+license = {text = "MIT"}
 
 [build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
+requires = ["pdm-backend"]
+build-backend = "pdm.backend"
+
+
+[tool.pdm]
+package-type = "library"
diff --git a/scripts/editable-installs/black_editable/black/__init__.py b/scripts/editable-installs/black_editable/src/black_editable/__init__.py
similarity index 100%
rename from scripts/editable-installs/black_editable/black/__init__.py
rename to scripts/editable-installs/black_editable/src/black_editable/__init__.py