This repository implements a GitHub Action that automates deployment of static content to GitHub Pages. It takes a folder from the workspace, optionally builds it, and pushes the contents to a specified branch (default `gh-pages`) using git worktrees and rsync. The action supports authentication via GitHub token, personal access token, or SSH deploy keys, and offers extensive configuration options including clean deployments, single-commit history, target subfolders, dry runs, tags, and Git LFS. The architecture is modular: `src/main.ts` is the entry point, `src/lib.ts` orchestrates the workflow, `src/git.ts` handles repository initialization and deployment, `src/worktree.ts` manages git worktree creation with retry logic, `src/ssh.ts` configures SSH clients, and `src/execute.ts` provides a reusable command execution wrapper. The action relies on external tools `git`, `rsync`, and `ssh-agent`, and uses the `@actions/*` toolkit for GitHub Actions integration. The codebase is well-structured TypeScript with comprehensive unit and integration tests, and follows modern JavaScript practices with ESLint, Prettier, and Jest.