diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 1a9d175..f398f2d 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,42 +1,39 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
 // README at: https://github.com/devcontainers/templates/tree/main/src/javascript-node
 {
-    "name": "Node.js",
-    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-    "image": "mcr.microsoft.com/devcontainers/javascript-node:1-22-bookworm",
+  "name": "Node.js",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/javascript-node:1-22-bookworm",
 
-    // Features to add to the dev container. More info: https://containers.dev/features.
-    // "features": {
-    //     "ghcr.io/devcontainers/features/go:1": {}
-    // },
+  // Features to add to the dev container. More info: https://containers.dev/features.
+  // "features": {
+  //     "ghcr.io/devcontainers/features/go:1": {}
+  // },
 
-    // Use 'forwardPorts' to make a list of ports inside the container available locally.
-    // "forwardPorts": [],
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
 
-    // Use 'postCreateCommand' to run commands after the container is created.
-    "postCreateCommand": {
-        "Configure Build Tools": "npm install -g pnpm"
-    },
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "postCreateCommand": {
+    "Configure Build Tools": "npm install -g pnpm"
+  },
 
-    // Configure tool-specific properties.
-    "customizations": {
-        "vscode": {
-            "settings": {
-                "terminal.integrated.defaultProfile.linux": "bash",
-                "terminal.integrated.profiles.linux": {
-                    "bash": {
-                        "path": "/bin/bash",
-                        "icon": "terminal-bash"
-                    }
-                }
-            },
-            "extensions": [
-                "dbaeumer.vscode-eslint",
-                "dprint.dprint"
-            ]
+  // Configure tool-specific properties.
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "terminal.integrated.profiles.linux": {
+          "bash": {
+            "path": "/bin/bash",
+            "icon": "terminal-bash"
+          }
         }
-    },
+      },
+      "extensions": ["dbaeumer.vscode-eslint", "dprint.dprint"]
+    }
+  },
 
-    // More info: https://aka.ms/dev-containers-non-root.
-    "remoteUser": "node"
+  // More info: https://aka.ms/dev-containers-non-root.
+  "remoteUser": "node"
 }
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ee7861..1a23e66 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,4 +24,6 @@ jobs:
       - name: Install dependencies
         run: pnpm install --ignore-scripts
       - name: Run linting/formatting checks
-        run: pnpm lint:ci
+        run: |
+          pnpm lint:ci
+          pnpm format:ci
diff --git a/biome.json b/biome.json
index 15fa951..8ca9270 100644
--- a/biome.json
+++ b/biome.json
@@ -1,33 +1,36 @@
 {
-	"$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
-	"vcs": {
-		"enabled": true,
-		"clientKind": "git",
-		"useIgnoreFile": true
-	},
-	"files": {
-		"ignoreUnknown": false,
-		"ignore": []
-	},
-	"formatter": {
-		"enabled": true,
-		"indentStyle": "tab"
-	},
-	"organizeImports": {
-		"enabled": true
-	},
-	"linter": {
-		"enabled": true,
-		"rules": {
-			"recommended": true,
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "ignore": []
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space"
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
       "style": {
         "useTemplate": "off"
       }
-		}
-	},
-	"javascript": {
-		"formatter": {
-			"quoteStyle": "single"
-		}
-	}
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "arrowParentheses": "asNeeded",
+      "quoteStyle": "single",
+      "semicolons": "asNeeded",
+      "trailingCommas": "all"
+    }
+  }
 }
diff --git a/package.json b/package.json
index aa24f2f..f43e1c5 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,13 @@
 {
   "name": "@ast-grep/langs",
   "private": true,
-  "workspaces": [
-    "packages/*",
-    "scripts/*"
-  ],
+  "workspaces": ["packages/*", "scripts/*"],
   "version": "0.0.1",
   "description": "Monorepo for `@ast-grep/lang-*` packages",
   "scripts": {
     "postinstall": "pnpm -r compile-ts",
+    "format": "biome format --write",
+    "format:ci": "biome format",
     "lint": "biome lint --fix",
     "lint:ci": "biome lint",
     "prepare": "husky"
@@ -21,8 +20,6 @@
     "husky": "9.1.7"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["tree-sitter-cli"]
   }
 }
diff --git a/packages/angular/index.js b/packages/angular/index.js
index d8462e5..b090f1f 100644
--- a/packages/angular/index.js
+++ b/packages/angular/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["html"],
+  extensions: ['html'],
   languageSymbol: 'tree_sitter_angular',
   expandoChar: 'z',
 }
diff --git a/packages/angular/nursery.js b/packages/angular/nursery.js
index 2eb9fc7..803059d 100644
--- a/packages/angular/nursery.js
+++ b/packages/angular/nursery.js
@@ -6,9 +6,9 @@ setup({
   name: 'angular',
   treeSitterPackage: 'tree-sitter-angular',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const a = parse('<div></div>')
     const b = a.root().find('<$TAG></$TAG>')
     console.log(b.kind(), b.getMatch('TAG').text())
-  }
+  },
 })
diff --git a/packages/angular/package.json b/packages/angular/package.json
index 8fd3619..25849ef 100644
--- a/packages/angular/package.json
+++ b/packages/angular/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,8 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["tree-sitter-cli"]
   }
 }
diff --git a/packages/c/index.js b/packages/c/index.js
index 23a0fcb..51477c6 100644
--- a/packages/c/index.js
+++ b/packages/c/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["c","h"],
+  extensions: ['c', 'h'],
   languageSymbol: 'tree_sitter_c',
   expandoChar: '_',
 }
diff --git a/packages/c/nursery.js b/packages/c/nursery.js
index 9abaaa0..2c9f39e 100644
--- a/packages/c/nursery.js
+++ b/packages/c/nursery.js
@@ -7,10 +7,10 @@ setup({
   name: 'c',
   treeSitterPackage: 'tree-sitter-c',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const sg = parse('int a = 123;')
     const root = sg.root()
     const node = root.find('$T $A = 123')
     assert.equal(node.kind(), 'declaration')
-  }
+  },
 })
diff --git a/packages/c/package.json b/packages/c/package.json
index 4a7d532..6380d3f 100644
--- a/packages/c/package.json
+++ b/packages/c/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,9 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "@ast-grep/lang-c",
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["@ast-grep/lang-c", "tree-sitter-cli"]
   }
 }
diff --git a/packages/cpp/index.js b/packages/cpp/index.js
index 7a83b24..78037f6 100644
--- a/packages/cpp/index.js
+++ b/packages/cpp/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["cc","hpp","cpp","hh","cxx","cu","ino"],
+  extensions: ['cc', 'hpp', 'cpp', 'hh', 'cxx', 'cu', 'ino'],
   languageSymbol: 'tree_sitter_cpp',
   expandoChar: '_',
 }
diff --git a/packages/cpp/nursery.js b/packages/cpp/nursery.js
index 9b09f1b..196f66b 100644
--- a/packages/cpp/nursery.js
+++ b/packages/cpp/nursery.js
@@ -7,7 +7,7 @@ setup({
   name: 'cpp',
   treeSitterPackage: 'tree-sitter-cpp',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const sg = parse(`
       template <typename T>
       T add(T a, T b) {
@@ -22,5 +22,5 @@ setup({
     const root = sg.root()
     const node = root.find('$T $A = 123')
     assert.equal(node.kind(), 'declaration')
-  }
+  },
 })
diff --git a/packages/cpp/package.json b/packages/cpp/package.json
index a71d4c8..8e87072 100644
--- a/packages/cpp/package.json
+++ b/packages/cpp/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,9 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "@ast-grep/lang-cpp",
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["@ast-grep/lang-cpp", "tree-sitter-cli"]
   }
 }
diff --git a/packages/csharp/index.js b/packages/csharp/index.js
index 838b74e..b7f177b 100644
--- a/packages/csharp/index.js
+++ b/packages/csharp/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["cs"],
+  extensions: ['cs'],
   languageSymbol: 'tree_sitter_c_sharp',
   expandoChar: 'µ',
 }
diff --git a/packages/csharp/nursery.js b/packages/csharp/nursery.js
index 7099f46..46e2f8c 100644
--- a/packages/csharp/nursery.js
+++ b/packages/csharp/nursery.js
@@ -7,10 +7,10 @@ setup({
   name: 'csharp',
   treeSitterPackage: 'tree-sitter-c-sharp',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const sg = parse('var a = 123;')
     const root = sg.root()
     const node = root.find('var $A = 123')
     assert.equal(node.kind(), 'variable_declaration')
-  }
+  },
 })
diff --git a/packages/csharp/package.json b/packages/csharp/package.json
index 808381d..5289000 100644
--- a/packages/csharp/package.json
+++ b/packages/csharp/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,9 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "@ast-grep/lang-csharp",
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["@ast-grep/lang-csharp", "tree-sitter-cli"]
   }
 }
diff --git a/packages/python/index.js b/packages/python/index.js
index 44b4301..cc6f1aa 100644
--- a/packages/python/index.js
+++ b/packages/python/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["py"],
+  extensions: ['py'],
   languageSymbol: 'tree_sitter_python',
   expandoChar: 'µ',
 }
diff --git a/packages/python/nursery.js b/packages/python/nursery.js
index 809a4f8..69441dd 100644
--- a/packages/python/nursery.js
+++ b/packages/python/nursery.js
@@ -7,10 +7,10 @@ setup({
   name: 'python',
   treeSitterPackage: 'tree-sitter-python',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const sg = parse('a = 123')
     const root = sg.root()
     const node = root.find('$FIELD = 123')
     assert.equal(node.kind(), 'assignment')
-  }
+  },
 })
diff --git a/packages/python/package.json b/packages/python/package.json
index f3c31b9..aa65ef9 100644
--- a/packages/python/package.json
+++ b/packages/python/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,9 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "@ast-grep/lang-python",
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["@ast-grep/lang-python", "tree-sitter-cli"]
   }
 }
diff --git a/packages/sql/index.js b/packages/sql/index.js
index ddcc9e4..5752ec1 100644
--- a/packages/sql/index.js
+++ b/packages/sql/index.js
@@ -3,7 +3,7 @@ const libPath = path.join(__dirname, 'parser.so')
 
 module.exports = {
   libraryPath: libPath,
-  extensions: ["sql"],
+  extensions: ['sql'],
   languageSymbol: 'tree_sitter_sql',
   expandoChar: '_',
 }
diff --git a/packages/sql/nursery.js b/packages/sql/nursery.js
index 9082403..63e4fb5 100644
--- a/packages/sql/nursery.js
+++ b/packages/sql/nursery.js
@@ -6,7 +6,7 @@ setup({
   name: 'sql',
   treeSitterPackage: '@derekstride/tree-sitter-sql',
   languageRegistration,
-  testRunner: (parse) => {
+  testRunner: parse => {
     // add test here
-  }
+  },
 })
diff --git a/packages/sql/package.json b/packages/sql/package.json
index 0f782cc..ff7aa1e 100644
--- a/packages/sql/package.json
+++ b/packages/sql/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,8 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["tree-sitter-cli"]
   }
 }
diff --git a/packages/toml/nursery.js b/packages/toml/nursery.js
index b9aa674..5aa4cc1 100644
--- a/packages/toml/nursery.js
+++ b/packages/toml/nursery.js
@@ -7,10 +7,10 @@ setup({
   name: 'toml',
   treeSitterPackage: '@tree-sitter-grammars/tree-sitter-toml',
   languageRegistration: toml,
-  testRunner: (parse) => {
+  testRunner: parse => {
     const sg = parse('name = "Tom"')
     const root = sg.root()
     const pair = root.find('$NAME = "Tom"')
     assert.equal(pair.kind(), 'pair')
-  }
+  },
 })
diff --git a/packages/toml/package.json b/packages/toml/package.json
index b7422e4..24ac8dc 100644
--- a/packages/toml/package.json
+++ b/packages/toml/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -45,8 +42,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["tree-sitter-cli"]
   }
 }
diff --git a/renovate.json b/renovate.json
index 5db72dd..22a9943 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,6 +1,4 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ]
+  "extends": ["config:recommended"]
 }
diff --git a/scripts/create-lang/index.ts b/scripts/create-lang/index.ts
index 2f51dca..f597588 100644
--- a/scripts/create-lang/index.ts
+++ b/scripts/create-lang/index.ts
@@ -12,61 +12,67 @@ function required(s: string): string | true {
 
 // https://github.com/vitejs/vite/blob/76082e3d3033b09b02b6db64de6e36942593c753/packages/create-vite/src/index.ts#L557
 function isValidPackageName(projectName: string) {
-  return /^(?:@[a-z\d\-*~][a-z\d\-*._~]*\/)?[a-z\d\-~][a-z\d\-._~]*$/.test(
-    projectName,
-  ) || 'Invalid package name'
+  return (
+    /^(?:@[a-z\d\-*~][a-z\d\-*._~]*\/)?[a-z\d\-~][a-z\d\-._~]*$/.test(
+      projectName,
+    ) || 'Invalid package name'
+  )
 }
 
-
 function askConfiguration() {
-  return prompts([
-    {
-      type: 'text',
-      name: 'name',
-      message: 'Language name',
-      validate: required,
-    },
-    {
-      type: 'text',
-      name: 'packageName',
-      message: 'Package name',
-      validate: isValidPackageName,
-      initial: (_, answers) => `my-dynamic-lang-${answers.name}`,
-    },
-    {
-      type: 'text',
-      name: 'treeSitterPackage',
-      message: 'Tree-sitter package to use',
-      validate: isValidPackageName,
-      initial: (_, answers) => `tree-sitter-${answers.name}`,
-    },
+  return prompts(
+    [
+      {
+        type: 'text',
+        name: 'name',
+        message: 'Language name',
+        validate: required,
+      },
+      {
+        type: 'text',
+        name: 'packageName',
+        message: 'Package name',
+        validate: isValidPackageName,
+        initial: (_, answers) => `my-dynamic-lang-${answers.name}`,
+      },
+      {
+        type: 'text',
+        name: 'treeSitterPackage',
+        message: 'Tree-sitter package to use',
+        validate: isValidPackageName,
+        initial: (_, answers) => `tree-sitter-${answers.name}`,
+      },
+      {
+        type: 'list',
+        name: 'extensions',
+        message: 'File extensions used by the language, comma separated',
+        separator: ',',
+        validate: required,
+      },
+      {
+        type: 'text',
+        name: 'expandoChar',
+        message: 'Expando char used in pattern',
+        initial: '$',
+        validate: value => {
+          return value.length === 1
+            ? true
+            : 'Expando char must be a single character'
+        },
+      },
+      {
+        type: 'confirm',
+        name: 'includeDotFiles',
+        message: 'Include gitignore and npm publish files?',
+        initial: true,
+      },
+    ],
     {
-      type: 'list',
-      name: 'extensions',
-      message: 'File extensions used by the language, comma separated',
-      separator: ',',
-      validate: required,
+      onCancel: () => {
+        process.exit(1)
+      },
     },
-    {
-      type: 'text',
-      name: 'expandoChar',
-      message: 'Expando char used in pattern',
-      initial: '$',
-      validate: (value) => {
-        return value.length === 1 ? true : 'Expando char must be a single character'
-      }
-    },
-    {
-      type: 'confirm',
-      name: 'includeDotFiles',
-      message: 'Include gitignore and npm publish files?',
-      initial: true,
-    }
-  ], {
-    onCancel: () => {
-      process.exit(1)
-    }
-  })
+  )
 }
 
 type Answers = Awaited<ReturnType<typeof askConfiguration>>
@@ -74,12 +80,12 @@ type Answers = Awaited<ReturnType<typeof askConfiguration>>
 function copyTemplate(targetDir: string, includeDotFiles: boolean) {
   const templateDir = path.join(__dirname, 'template')
   return fs.cp(templateDir, targetDir, {
-    recursive: true,  // Copy all files and folders
+    recursive: true, // Copy all files and folders
     // includes hidden files if `includeDotFiles` is true
-    filter: (src) => {
+    filter: src => {
       const basename = path.basename(src)
       return includeDotFiles || !basename.startsWith('.')
-    }
+    },
   })
 }
 
@@ -98,7 +104,7 @@ async function renameFiles(dir: string, answer: Answers) {
       renameFiles(filePath, answer)
     } else {
       const content = await fs.readFile(filePath, 'utf-8')
-      const newContent = content.replace(/(\$\$[A-Z_]+\$\$)/g, (match) => {
+      const newContent = content.replace(/(\$\$[A-Z_]+\$\$)/g, match => {
         return name[match] || match
       })
       await fs.writeFile(filePath, newContent)
diff --git a/scripts/create-lang/template/package.json b/scripts/create-lang/template/package.json
index da0a8bc..3cc1ae5 100644
--- a/scripts/create-lang/template/package.json
+++ b/scripts/create-lang/template/package.json
@@ -18,10 +18,7 @@
     "src",
     "prebuilds"
   ],
-  "keywords": [
-    "ast-grep",
-    "ast-grep-lang"
-  ],
+  "keywords": ["ast-grep", "ast-grep-lang"],
   "author": "",
   "license": "ISC",
   "dependencies": {
@@ -44,9 +41,6 @@
     "registry": "https://registry.npmjs.org/"
   },
   "pnpm": {
-    "onlyBuiltDependencies": [
-      "$$PACKAGE_NAME$$",
-      "tree-sitter-cli"
-    ]
+    "onlyBuiltDependencies": ["$$PACKAGE_NAME$$", "tree-sitter-cli"]
   }
 }
diff --git a/scripts/nursery/index.ts b/scripts/nursery/index.ts
index 902dbd0..de7ab89 100644
--- a/scripts/nursery/index.ts
+++ b/scripts/nursery/index.ts
@@ -1,6 +1,7 @@
+import type { DynamicLangRegistrations, SgRoot } from '@ast-grep/napi'
+import { parse, registerDynamicLanguage } from '@ast-grep/napi'
 import fs from 'node:fs'
 import path from 'node:path'
-import { parse, registerDynamicLanguage, type SgRoot, type DynamicLangRegistrations } from '@ast-grep/napi'
 
 /**
  * Log to console
@@ -26,7 +27,7 @@ interface SetupConfig {
 function test(setupConfig: SetupConfig) {
   const { name, languageRegistration, testRunner } = setupConfig
   registerDynamicLanguage({ [name]: languageRegistration })
-  testRunner((code) => parse(name, code))
+  testRunner(code => parse(name, code))
 }
 
 /** Setup ast-grep/lang package's pre-release build and test */
@@ -43,7 +44,7 @@ export function setup(setupConfig: SetupConfig) {
 function copySrcIfNeeded(config: SetupConfig) {
   const { dirname, treeSitterPackage } = config
   const existing = path.join(dirname, 'src')
-  const src = path.join(dirname, 'node_modules', treeSitterPackage,  'src')
+  const src = path.join(dirname, 'node_modules', treeSitterPackage, 'src')
   if (fs.existsSync(existing)) {
     log('src exists, skipping copy')
     return
diff --git a/scripts/setup/index.ts b/scripts/setup/index.ts
index d926c5d..96ce6a8 100644
--- a/scripts/setup/index.ts
+++ b/scripts/setup/index.ts
@@ -33,7 +33,9 @@ function postinstall(config: SetupConfig) {
   try {
     buildSrc(config)
   } catch (e: unknown) {
-    log('build failed, please ensure tree-sitter-cli is installed as peer dependency')
+    log(
+      'build failed, please ensure tree-sitter-cli is installed as peer dependency',
+    )
     log(e)
   }
 }
@@ -42,7 +44,9 @@ function buildSrc(config: SetupConfig) {
   const { dirname } = config
   const existing = path.join(dirname, 'src')
   if (!fs.existsSync(existing)) {
-    log('tree-sitter src not found. If you are making a lang package, please run `pnpm source`.')
+    log(
+      'tree-sitter src not found. If you are making a lang package, please run `pnpm source`.',
+    )
     return
   }
   log('building parser from source')
@@ -66,7 +70,12 @@ const ARCH_MAP: Record<string, string> = {
 function resolvePrebuild(dir: string) {
   const os = PLATFORM_MAP[process.platform]
   const arch = ARCH_MAP[process.arch]
-  const prebuild = path.join(dir, 'prebuilds', `prebuild-${os}-${arch}`, 'parser.so')
+  const prebuild = path.join(
+    dir,
+    'prebuilds',
+    `prebuild-${os}-${arch}`,
+    'parser.so',
+  )
   if (!os || !arch || !fs.existsSync(prebuild)) {
     log(`no prebuild for ${os} ${arch}`)
     return undefined
diff --git a/tsconfig.json b/tsconfig.json
index 5878492..9437068 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,8 +9,5 @@
     "declaration": true,
     "forceConsistentCasingInFileNames": true
   },
-  "exclude": [
-    "node_modules",
-    "dist"
-  ]
+  "exclude": ["node_modules", "dist"]
 }