# Fork, build, and run your own version [Back to Engine repository](https://rustic-game-engine.pages.dev/markdown/open-source/engine.md). Fork the repository on GitHub, then replace `YOUR_ACCOUNT` below: ```sh git clone https://github.com/YOUR_ACCOUNT/engine.git cd engine/Engine git switch -c my-engine-change rustup show active-toolchain cargo install cargo-deny --locked --version 0.20.2 cargo xtask doctor cargo xtask build cargo xtask run project-manager ``` Rustup selects the repository-pinned toolchain in `Engine/`. `doctor` checks required tools, repository files, dependency policy, and gameplay toolchain availability. `build` builds the bundled Luau host and the workspace. The last command builds the editor, launches the native project manager, and lets you create or import a project and open the editor. For a distributable optimized build: ```sh cargo xtask build --profile distribution ``` The task runner accepts `dev`, `dev-fast`, `release`, and `distribution` profiles. Keep project files and persistent data compatible unless your change includes an explicit migration.