GitCat 1.0 launches as open-source Git GUI built for large, branch-heavy repos

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A developer released GitCat 1.0, a performance-focused Git graphical interface designed as an alternative to Git Extensions for large repositories with complex branch structures. The tool originated during an internship where slow performance on memory-constrained laptops prompted the developer to build a lightweight solution, which gradually expanded after colleagues adopted it. GitCat is built with Tauri 2, Rust, and Svelte 5, using a virtualized canvas and incremental graph updates to keep the commit history responsive even on repositories exceeding 150,000 commits. A built-in Safety Manager takes repository snapshots before any mutation, enabling a global undo shortcut that is itself reversible, going beyond simple confirmation dialogs. The application is now available for macOS, Windows, and Linux under the GPL-3.0-or-later open-source license.

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