diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..44610e56
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake;
diff --git a/.gitignore b/.gitignore
index 678fdef0..23443488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /test/smoke/parcel/.cache/**
 **/dist/
 **/out/
+.direnv/
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 00000000..5aab3336
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,27 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+  };
+  outputs =
+    { nixpkgs, ... }:
+    let
+      forAllSystems =
+        function:
+        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (
+          system: function nixpkgs.legacyPackages.${system}
+        );
+    in
+    {
+      formatter = forAllSystems (pkgs: pkgs.alejandra);
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            bun
+            deno
+            nodejs
+            python3
+          ];
+        };
+      });
+    };
+}
diff --git a/package.json b/package.json
index 5e52ca55..8c487ae8 100644
--- a/package.json
+++ b/package.json
@@ -1,81 +1,81 @@
 {
-	"name": "monaco-editor",
-	"version": "0.52.0",
-	"vscodeRef": "493330cdc6475247184ea459c66776c3da12cd2d",
-	"private": true,
-	"description": "A browser based code editor",
-	"homepage": "https://github.com/microsoft/monaco-editor",
-	"author": "Microsoft Corporation",
-	"license": "MIT",
-	"scripts": {
-		"import-typescript": "ts-node ./build/importTypescript",
-		"playwright-install": "node ./node_modules/playwright/install.js",
-		"playwright-install-deps": "playwright install-deps",
-		"postinstall": "ts-node ./build/postinstall",
-		"prettier-check": "prettier --check .",
-		"prettier": "prettier --write .",
-		"pretty-quick": "pretty-quick --staged",
-		"simpleserver": "ts-node ./build/simpleserver",
-		"package-for-smoketest-webpack": "ts-node ./test/smoke/package-webpack",
-		"package-for-smoketest-webpack-cross-origin": "ts-node ./test/smoke/package-webpack --cross-origin",
-		"package-for-smoketest-esbuild": "ts-node ./test/smoke/package-esbuild",
-		"package-for-smoketest-vite": "ts-node ./test/smoke/package-vite",
-		"smoketest": "node ./test/smoke/runner.js",
-		"smoketest-debug": "node ./test/smoke/runner.js --debug-tests",
-		"test": "mocha test/unit/all.js && ts-node ./build/check-samples",
-		"deps-all-remove": "ts-node ./build/npm/removeAll",
-		"deps-all-install": "ts-node ./build/npm/installAll",
-		"update-actions": "pin-github-action ./.github/workflows/website.yml",
-		"watch": "tsc -w -p ./src",
-		"build": "ts-node ./build/build-languages",
-		"build-monaco-editor": "npm run build && ts-node ./build/build-monaco-editor"
-	},
-	"typings": "./esm/vs/editor/editor.api.d.ts",
-	"module": "./esm/vs/editor/editor.main.js",
-	"repository": {
-		"type": "git",
-		"url": "https://github.com/microsoft/monaco-editor"
-	},
-	"devDependencies": {
-		"@types/mocha": "^9.1.0",
-		"@types/shelljs": "^0.8.11",
-		"@typescript/vfs": "^1.3.5",
-		"chai": "^4.3.6",
-		"clean-css": "^5.2.4",
-		"css-loader": "^6.7.1",
-		"esbuild": "^0.20.0",
-		"esbuild-plugin-alias": "^0.2.1",
-		"file-loader": "^6.2.0",
-		"glob": "^7.2.0",
-		"http-server": "^14.1.1",
-		"husky": "^7.0.4",
-		"jsdom": "^19.0.0",
-		"jsonc-parser": "^3.0.0",
-		"mocha": "^9.2.0",
-		"monaco-editor-core": "0.52.0-rc2",
-		"parcel": "^2.7.0",
-		"pin-github-action": "^1.8.0",
-		"playwright": "^1.32.2",
-		"prettier": "^2.5.1",
-		"pretty-quick": "^3.1.3",
-		"requirejs": "^2.3.6",
-		"shelljs": "^0.8.5",
-		"style-loader": "^3.3.1",
-		"terser": "^5.14.2",
-		"ts-node": "^10.6.0",
-		"typescript": "^5.4.5",
-		"vite": "^3.2.8",
-		"vscode-css-languageservice": "6.2.14",
-		"vscode-html-languageservice": "5.2.0",
-		"vscode-json-languageservice": "5.3.11",
-		"vscode-languageserver-textdocument": "^1.0.11",
-		"vscode-languageserver-types": "3.17.5",
-		"vscode-uri": "3.0.8",
-		"webpack": "^5.76.0",
-		"yaserver": "^0.4.0"
-	},
-	"alias": {
-		"process": false,
-		"buffer": false
-	}
+  "name": "@effect/monaco-editor",
+  "version": "0.52.0",
+  "vscodeRef": "493330cdc6475247184ea459c66776c3da12cd2d",
+  "private": true,
+  "description": "A browser based code editor",
+  "homepage": "https://github.com/microsoft/monaco-editor",
+  "author": "Microsoft Corporation",
+  "license": "MIT",
+  "scripts": {
+    "import-typescript": "ts-node ./build/importTypescript",
+    "playwright-install": "node ./node_modules/playwright/install.js",
+    "playwright-install-deps": "playwright install-deps",
+    "postinstall": "ts-node ./build/postinstall",
+    "prettier-check": "prettier --check .",
+    "prettier": "prettier --write .",
+    "pretty-quick": "pretty-quick --staged",
+    "simpleserver": "ts-node ./build/simpleserver",
+    "package-for-smoketest-webpack": "ts-node ./test/smoke/package-webpack",
+    "package-for-smoketest-webpack-cross-origin": "ts-node ./test/smoke/package-webpack --cross-origin",
+    "package-for-smoketest-esbuild": "ts-node ./test/smoke/package-esbuild",
+    "package-for-smoketest-vite": "ts-node ./test/smoke/package-vite",
+    "smoketest": "node ./test/smoke/runner.js",
+    "smoketest-debug": "node ./test/smoke/runner.js --debug-tests",
+    "test": "mocha test/unit/all.js && ts-node ./build/check-samples",
+    "deps-all-remove": "ts-node ./build/npm/removeAll",
+    "deps-all-install": "ts-node ./build/npm/installAll",
+    "update-actions": "pin-github-action ./.github/workflows/website.yml",
+    "watch": "tsc -w -p ./src",
+    "build": "ts-node ./build/build-languages",
+    "build-monaco-editor": "npm run build && ts-node ./build/build-monaco-editor"
+  },
+  "typings": "./esm/vs/editor/editor.api.d.ts",
+  "module": "./esm/vs/editor/editor.main.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/microsoft/monaco-editor"
+  },
+  "devDependencies": {
+    "@types/mocha": "^9.1.0",
+    "@types/shelljs": "^0.8.11",
+    "@typescript/vfs": "^1.3.5",
+    "chai": "^4.3.6",
+    "clean-css": "^5.2.4",
+    "css-loader": "^6.7.1",
+    "esbuild": "^0.20.0",
+    "esbuild-plugin-alias": "^0.2.1",
+    "file-loader": "^6.2.0",
+    "glob": "^7.2.0",
+    "http-server": "^14.1.1",
+    "husky": "^7.0.4",
+    "jsdom": "^19.0.0",
+    "jsonc-parser": "^3.0.0",
+    "mocha": "^9.2.0",
+    "monaco-editor-core": "0.52.0-rc2",
+    "parcel": "^2.7.0",
+    "pin-github-action": "^1.8.0",
+    "playwright": "^1.32.2",
+    "prettier": "^2.5.1",
+    "pretty-quick": "^3.1.3",
+    "requirejs": "^2.3.6",
+    "shelljs": "^0.8.5",
+    "style-loader": "^3.3.1",
+    "terser": "^5.14.2",
+    "ts-node": "^10.6.0",
+    "typescript": "^5.4.5",
+    "vite": "^3.2.8",
+    "vscode-css-languageservice": "6.2.14",
+    "vscode-html-languageservice": "5.2.0",
+    "vscode-json-languageservice": "5.3.11",
+    "vscode-languageserver-textdocument": "^1.0.11",
+    "vscode-languageserver-types": "3.17.5",
+    "vscode-uri": "3.0.8",
+    "webpack": "^5.76.0",
+    "yaserver": "^0.4.0"
+  },
+  "alias": {
+    "process": false,
+    "buffer": false
+  }
 }