diff --git a/decompiler/CMakeLists.txt b/decompiler/CMakeLists.txt
index 00ef05461b..7532391a82 100644
--- a/decompiler/CMakeLists.txt
+++ b/decompiler/CMakeLists.txt
@@ -89,7 +89,8 @@ add_library(
         VuDisasm/VuDisassembler.cpp
         VuDisasm/VuInstruction.cpp
 
-        config.cpp)
+        config.cpp
+        decompilation_process.cpp)
 
 target_link_libraries(decomp
         lzokay
diff --git a/decompiler/decompilation_process.cpp b/decompiler/decompilation_process.cpp
new file mode 100644
index 0000000000..96afc8ad17
--- /dev/null
+++ b/decompiler/decompilation_process.cpp
@@ -0,0 +1,285 @@
+#include "decompilation_process.h"
+
+#include <string>
+#include <vector>
+
+#include "config.h"
+
+#include <common/log/log.h>
+#include <common/util/Timer.h>
+#include <common/util/os.h>
+
+#include "Disasm/OpcodeInfo.h"
+#include "ObjectFile/ObjectFileDB.h"
+#include "data/streamed_audio.h"
+#include "level_extractor/extract_level.h"
+
+int run_decompilation_process(decompiler::Config config,
+                              const fs::path& in_folder,
+                              const fs::path& out_folder,
+                              const bool minimal_for_extractor) {
+  using namespace decompiler;
+  Timer decomp_timer;
+
+  lg::info("[Mem] Top of main: {} MB\n", get_peak_rss() / (1024 * 1024));
+
+  init_opcode_info();
+
+  lg::info("[Mem] After init: {} MB\n", get_peak_rss() / (1024 * 1024));
+
+  std::vector<fs::path> dgos, objs, strs, tex_strs, art_strs;
+  if (minimal_for_extractor) {
+    // TODO - does this even matter, or can we just make the DGOs lazily loaded (does it already
+    // happen?)
+    for (const auto& dgo_name : config.dgo_names) {
+      std::string common_name = "GAME.CGO";
+      if (dgo_name.length() > 3 && dgo_name.substr(dgo_name.length() - 3) == "DGO") {
+        // ends in DGO, it's a level
+        dgos.push_back(in_folder / dgo_name);
+      } else if (dgo_name.length() >= common_name.length() &&
+                 dgo_name.substr(dgo_name.length() - common_name.length()) == common_name) {
+        // it's COMMON.CGO, we need that too.
+        dgos.push_back(in_folder / dgo_name);
+      }
+    }
+  } else {
+    for (const auto& dgo_name : config.dgo_names) {
+      dgos.push_back(in_folder / dgo_name);
+    }
+  }
+
+  if (minimal_for_extractor) {
+    // TODO - does this even matter, or can we just make the DGOs lazily loaded (does it already
+    // happen?)
+    for (const auto& obj_name : config.object_file_names) {
+      if (obj_name.length() > 3 && obj_name.substr(obj_name.length() - 3) == "TXT") {
+        // ends in TXT
+        objs.push_back(in_folder / obj_name);
+      }
+    }
+  } else {
+    for (const auto& obj_name : config.object_file_names) {
+      objs.push_back(in_folder / obj_name);
+    }
+  }
+
+  if (!minimal_for_extractor) {
+    for (const auto& str_name : config.str_file_names) {
+      strs.push_back(in_folder / str_name);
+    }
+  }
+
+  for (const auto& str_name : config.str_texture_file_names) {
+    tex_strs.push_back(in_folder / str_name);
+  }
+
+  for (const auto& str_name : config.str_art_file_names) {
+    art_strs.push_back(in_folder / str_name);
+  }
+
+  lg::info("[Mem] After config read: {} MB", get_peak_rss() / (1024 * 1024));
+
+  // build file database
+  lg::info("Setting up object file DB...");
+  ObjectFileDB db(dgos, fs::path(config.obj_file_name_map_file), objs, strs, tex_strs, art_strs,
+                  config);
+
+  // Explicitly fail if a file in the 'allowed_objects' list wasn't found in the DB
+  // as this is another silent error that can be confusing
+  if (!config.allowed_objects.empty()) {
+    for (const auto& expected_obj : config.allowed_objects) {
+      if (db.obj_files_by_name.count(expected_obj) == 0) {
+        // TODO - this is wrong for jak1, fix eventually as this is now done in 3 places
+        lg::error(
+            "Expected to find '{}' in the ObjectFileDB but did not. Check "
+            "./decompiler/config/{}/inputs.jsonc",
+            expected_obj, config.game_name);
+        return 1;
+      }
+    }
+  }
+
+  lg::info("[Mem] After DB setup: {} MB", get_peak_rss() / (1024 * 1024));
+
+  // TODO - extractor skips these, probably doesnt matter
+  // write out DGO file info
+  file_util::write_text_file(out_folder / "dgo.txt", db.generate_dgo_listing());
+  // write out object file map (used for future decompilations, if desired)
+  file_util::write_text_file(out_folder / "obj.txt",
+                             db.generate_obj_listing(config.merged_objects));
+
+  // dump raw objs
+  if (config.dump_objs) {
+    auto path = out_folder / "raw_obj";
+    file_util::create_dir_if_needed(path);
+    db.dump_raw_objects(path);
+  }
+
+  // process files (required for all analysis)
+  db.process_link_data(config);
+  lg::info("[Mem] After link data: {} MB", get_peak_rss() / (1024 * 1024));
+  db.find_code(config);
+  db.process_labels();
+  lg::info("[Mem] After code: {} MB", get_peak_rss() / (1024 * 1024));
+
+  // top level decompile (do this before printing asm so we get function names)
+  if (config.find_functions) {
+    db.ir2_top_level_pass(config);
+  }
+
+  // print disassembly
+  if (config.disassemble_code || config.disassemble_data) {
+    db.write_disassembly(out_folder, config.disassemble_data, config.disassemble_code,
+                         config.write_hex_near_instructions);
+  }
+
+  if (config.process_art_groups) {
+    db.extract_art_info();
+    // dump art info to json if requested
+    if (config.dump_art_group_info) {
+      auto ag_file_name = out_folder / "dump" / "art-group-info.min.json";
+      nlohmann::json ag_json = db.dts.art_group_info;
+      file_util::create_dir_if_needed_for_file(ag_file_name);
+      file_util::write_text_file(ag_file_name, ag_json.dump(-1));
+      lg::info("[DUMP] Dumped art group info to {}", ag_file_name.string());
+    }
+    if (config.dump_joint_geo_info) {
+      auto jg_file_name = out_folder / "dump" / "joint-node-info.min.json";
+      nlohmann::json jg_json = db.dts.jg_info;
+      file_util::create_dir_if_needed_for_file(jg_file_name);
+      file_util::write_text_file(jg_file_name, jg_json.dump(-1));
+      lg::info("[DUMP] Dumped joint node info to {}", jg_file_name.string());
+    }
+  } else if (!config.art_group_info_dump.empty() || !config.jg_info_dump.empty()) {
+    // process art groups (used in decompilation)
+    // - if the config has a path to the art info dump, just use that
+    // - otherwise (or if we want to dump it fresh) extract it
+    if (!config.art_group_info_dump.empty()) {
+      db.dts.art_group_info = config.art_group_info_dump;
+    }
+    if (!config.jg_info_dump.empty()) {
+      db.dts.jg_info = config.jg_info_dump;
+    }
+  } else {
+    lg::error("`process_art_groups` was false and no art-group-info dump was provided!");
+    return 1;
+  }
+
+  if (config.process_tpages && !config.texture_info_dump.empty()) {
+    db.dts.textures = config.texture_info_dump;
+  }
+
+  // main decompile.
+  if (config.decompile_code) {
+    db.analyze_functions_ir2(out_folder, config, {}, {}, {});
+  }
+
+  if (config.generate_all_types) {
+    ASSERT_MSG(config.decompile_code, "Must decompile code to generate all-types");
+    db.ir2_analyze_all_types(out_folder / "new-all-types.gc", config.old_all_types_file,
+                             config.hacks.types_with_bad_inspect_methods);
+  }
+
+  lg::info("[Mem] After decomp: {} MB", get_peak_rss() / (1024 * 1024));
+
+  // write out all symbols
+  file_util::write_text_file(out_folder / "all-syms.gc", db.dts.dump_symbol_types());
+
+  // write art groups
+  if (config.process_art_groups) {
+    db.dump_art_info(out_folder);
+  }
+
+  if (config.hexdump_code || config.hexdump_data) {
+    db.write_object_file_words(out_folder, config.hexdump_data, config.hexdump_code);
+  }
+
+  // data stuff
+  if (config.write_scripts) {
+    db.find_and_write_scripts(out_folder);
+  }
+
+  // ensure asset dir exists
+  file_util::create_dir_if_needed(out_folder / "assets");
+
+  if (config.process_game_text) {
+    auto result = db.process_game_text_files(config);
+    if (!result.empty()) {
+      file_util::write_text_file(out_folder / "assets" / "game_text.txt", result);
+    }
+  }
+
+  lg::info("[Mem] After text: {} MB", get_peak_rss() / (1024 * 1024));
+
+  if (config.process_subtitle_text || config.process_subtitle_images) {
+    auto result = db.process_all_spool_subtitles(
+        config, config.process_subtitle_images ? out_folder / "assets" / "subtitle-images" : "");
+    if (!result.empty()) {
+      file_util::write_text_file(out_folder / "assets" / "game_subs.txt", result);
+    }
+  }
+
+  lg::info("[Mem] After spool handling: {} MB", get_peak_rss() / (1024 * 1024));
+
+  TextureDB tex_db;
+  if (config.process_tpages || config.levels_extract) {
+    auto textures_out = out_folder / "textures";
+    auto dump_out = out_folder / "import";
+    file_util::create_dir_if_needed(textures_out);
+    auto result = db.process_tpages(tex_db, textures_out, config, dump_out);
+    if (!result.empty() && config.process_tpages) {
+      file_util::write_text_file(textures_out / "tpage-dir.txt", result);
+      file_util::write_text_file(textures_out / "tex-remap.txt",
+                                 tex_db.generate_texture_dest_adjustment_table());
+    }
+    if (config.dump_tex_info) {
+      auto texture_file_name = out_folder / "dump" / "tex-info.min.json";
+      nlohmann::json texture_json = db.dts.textures;
+      file_util::create_dir_if_needed_for_file(texture_file_name);
+      file_util::write_text_file(texture_file_name, texture_json.dump(-1));
+      lg::info("[DUMP] Dumped texture info to {}", texture_file_name.string());
+    }
+  }
+
+  lg::info("[Mem] After textures: {} MB", get_peak_rss() / (1024 * 1024));
+
+  // Merge textures before replacing them, in other words, replacements take priority
+  auto texture_merge_path = file_util::get_jak_project_dir() / "game" / "assets" /
+                            game_version_names[config.game_version] / "texture_merges";
+  if (fs::exists(texture_merge_path)) {
+    tex_db.merge_textures(texture_merge_path);
+  }
+
+  auto replacements_path = file_util::get_jak_project_dir() / "custom_assets" /
+                           game_version_names[config.game_version] / "texture_replacements";
+  if (fs::exists(replacements_path)) {
+    tex_db.replace_textures(replacements_path);
+  }
+
+  if (config.process_game_count) {
+    auto result = db.process_game_count_file();
+    if (!result.empty()) {
+      file_util::write_text_file(out_folder / "assets" / "game_count.txt", result);
+    }
+  }
+
+  if (config.levels_extract) {
+    auto level_out_path =
+        file_util::get_jak_project_dir() / "out" / game_version_names[config.game_version] / "fr3";
+    file_util::create_dir_if_needed(level_out_path);
+    extract_all_levels(db, tex_db, config.levels_to_extract, "GAME.CGO", config, level_out_path);
+  }
+
+  lg::info("[Mem] After extraction: {} MB", get_peak_rss() / (1024 * 1024));
+
+  if (!config.audio_dir_file_name.empty()) {
+    auto streaming_audio_in = in_folder / "VAG";
+    auto streaming_audio_out = out_folder / "assets" / "streaming_audio";
+    file_util::create_dir_if_needed(streaming_audio_out);
+    process_streamed_audio(config, streaming_audio_out, in_folder,
+                           config.streamed_audio_file_names);
+  }
+
+  lg::info("Decompiler has finished successfully in {:.2f} seconds.", decomp_timer.getSeconds());
+  return 0;
+}
diff --git a/decompiler/decompilation_process.h b/decompiler/decompilation_process.h
new file mode 100644
index 0000000000..c7efd4a8e2
--- /dev/null
+++ b/decompiler/decompilation_process.h
@@ -0,0 +1,8 @@
+#pragma once
+
+#include "config.h"
+
+int run_decompilation_process(decompiler::Config config,
+                              const fs::path& in_folder,
+                              const fs::path& out_folder,
+                              const bool minimal_for_extractor);