Cross-Compilation

Kiln supports cross-compiling single executable binaries for different target architectures and operating systems using Bun’s native cross-compiler.

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Supported Compilation Targets

Target Flag	Architecture	Typical Use Case
--target bun-linux-x64	Linux x86_64	Standard cloud servers, Docker, AWS, VPS
--target bun-linux-arm64	Linux ARM64	AWS Graviton, Apple Silicon containers, Raspberry Pi
--target bun-windows-x64	Windows x64	Windows Server, Desktop Windows executables
--target bun-darwin-arm64	macOS ARM64	Apple Silicon macOS deployment
--target bun-darwin-x64	macOS x64	Intel macOS deployment

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Example Usage

Via CLI Flag:

# Compile for a Linux cloud server
kiln -o ./server-linux --target bun-linux-x64

# Compile for Windows
kiln -o ./server-win.exe --target bun-windows-x64

Via Environment Variable:

You can also pass KILN_TARGET:

KILN_TARGET=bun-linux-x64 kiln -o ./bin/app