diff --git a/packages/hs2js/package.json b/packages/hs2js/package.json
index e8d698601..1376260bb 100644
--- a/packages/hs2js/package.json
+++ b/packages/hs2js/package.json
@@ -29,10 +29,10 @@
   },
   "homepage": "https://codeberg.org/uzu/strudel/",
   "dependencies": {
-    "web-tree-sitter": "^0.24.7"
+    "web-tree-sitter": "^0.24.7",
+    "tree-sitter-haskell": "^0.23.1"
   },
   "devDependencies": {
-    "tree-sitter-haskell": "^0.23.1",
     "vite": "^6.0.11"
   },
   "engines": {
diff --git a/packages/hs2js/src/parser.mjs b/packages/hs2js/src/parser.mjs
index a5b010b4c..4ee71fe83 100644
--- a/packages/hs2js/src/parser.mjs
+++ b/packages/hs2js/src/parser.mjs
@@ -1,6 +1,8 @@
 import Parser from 'web-tree-sitter';
+import treeSitterWasm from 'web-tree-sitter/tree-sitter.wasm?url';
+import grammarWasm from 'tree-sitter-haskell/tree-sitter-haskell.wasm?url';
 
-let base = '/';
+let base;
 export function setBase(path) {
   base = path;
 }
@@ -10,11 +12,15 @@ let isReady = false,
 async function _loadParser() {
   await Parser.init({
     locateFile(scriptName, scriptDirectory) {
-      return `${base}${scriptName}`;
+      if (base) {
+        return `${base}${scriptName}`;
+      }
+      return treeSitterWasm;
     },
   });
   parser = new Parser();
-  const Lang = await Parser.Language.load(`${base}tree-sitter-haskell.wasm`);
+  let grammarUrl = base ? `${base}tree-sitter-haskell.wasm` : grammarWasm;
+  const Lang = await Parser.Language.load(grammarUrl);
   parser.setLanguage(Lang);
   isReady = true;
   return parser;
diff --git a/packages/tidal/package.json b/packages/tidal/package.json
index bd299b397..d719d2d67 100644
--- a/packages/tidal/package.json
+++ b/packages/tidal/package.json
@@ -3,6 +3,7 @@
   "version": "0.2.0",
   "private": true,
   "description": "Experimental Tidal Code interpreter",
+  "main": "tidal.mjs",
   "module": "tidal.mjs",
   "repository": {
     "type": "git",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index bf0931007..7efc28c12 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -359,13 +359,13 @@ importers:
 
   packages/hs2js:
     dependencies:
+      tree-sitter-haskell:
+        specifier: ^0.23.1
+        version: 0.23.1(tree-sitter@0.21.1)
       web-tree-sitter:
         specifier: ^0.24.7
         version: 0.24.7
     devDependencies:
-      tree-sitter-haskell:
-        specifier: ^0.23.1
-        version: 0.23.1(tree-sitter@0.21.1)
       vite:
         specifier: ^6.0.11
         version: 6.0.11(@types/node@22.10.10)(jiti@2.4.2)(lightningcss@1.29.1)(terser@5.37.0)(yaml@2.7.0)