bun-types
Version:
Type definitions and documentation for Bun, an incredibly fast JavaScript runtime
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Markdown
name: Codesign a single-file JavaScript executable on macOS
description: Fix the "can't be opened because it is from an unidentified developer" Gatekeeper warning when running your JavaScript executable.
Compile your executable using the `--compile` flag.
```sh
$ bun build --compile ./path/to/entry.ts --outfile myapp
```
List your available signing identities. One of these will be your signing identity that you pass to the `codesign` command. This command requires macOS.
```sh
$ security find-identity -v -p codesigning
1. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX "Developer ID Application: Your Name (ZZZZZZZZZZ)"
1 valid identities found
```
Optional, but recommended: create an `entitlements.plist` file with the necessary permissions for the JavaScript engine to work correctly.
```xml#entitlements.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.security.cs.allow-jit</key>
<true/>
<key>com.apple.security.cs.allow-unsigned-executable-memory</key>
<true/>
<key>com.apple.security.cs.disable-executable-page-protection</key>
<true/>
<key>com.apple.security.cs.allow-dyld-environment-variables</key>
<true/>
<key>com.apple.security.cs.disable-library-validation</key>
<true/>
</dict>
</plist>
```
Sign your executable using the `codesign` command and verify it works.
```bash
$ codesign --entitlements entitlements.plist -vvvv --deep --sign "XXXXXXXXXX" ./myapp --force
$ codesign -vvv --verify ./myapp
```
For more information on macOS codesigning, refer to [Apple's Code Signing documentation](https://developer.apple.com/documentation/security/code_signing_services). For details about creating single-file executables with Bun, see [Standalone Executables](/docs/bundler/executables). This guide requires Bun v1.2.4 or newer.