proton-home-sync is an open-source command-line tool that merges all Steam Proton prefix home directories into a single shared directory and replaces each prefix with a symlink. This simplifies the process of backing up game saves for Linux gamers using Steam Proton, ensuring that backup tools can access all saves in one location.
proton-home-sync is a CLI tools & terminal product. It focuses on managing and backing up Steam Proton game save directories across multiple prefixes. proton-home-sync is an open-source project aimed at linux gamers and power users using Steam Proton. The project is open source (MIT). The product ships for the command line.
proton-home-sync first shipped in 2026. Among its 5 catalogued features are directory merge, symlink creation, and game save backup.
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proton-home-sync verified by the PulseGate indexer
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