teckperry/self-hosted-git-client ? reverse-engineered prompt

Build me a desktop Git client that runs fully on the user’s machine, with no login, no telemetry, and no cloud stuff. It should feel fast and polished, work on macOS, Windows, and Linux, and let me manage multiple repositories in tabs with session restore. I want a commit graph with branch lanes, commit details, staging and unstaging files, easy commit editing, push, pull, fetch, branch and tag management, stashes, and remote support. Please include a good diff viewer with inline and side by side views, searching across commits and files, and a visual merge conflict editor where I can pick whole sides or individual lines. It should also support rebase actions like reorder, squash, fixup, and drop, plus undo for recent actions through git history. Add light and dark themes, keyboard navigation, update notifications, and an SSH key manager. If you need current docs or best practices, look them up online first.