An interactive script that automates cloning, patching, building, and updating custom Proton builds from CachyOS SLR or Proton-GE, producing Steam-ready redistributables.

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5

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License

GPL-3.0

Last updated

2026-07-29

AI repository intelligence
FR-AI / ANALYSIS

Why it is worth attention

Simplifies the complex process of building custom Proton with patches by handling submodule bootstrapping, patch application with conflict resolution, and containerized builds in a single interactive workflow.

Who it is for

  • Linux gamers who want to apply custom patches to Proton
  • Developers modifying or testing Proton patches
  • System administrators managing custom Proton builds for users
  • Arch, Fedora, Debian, and openSUSE users familiar with container runtimes

Use cases

  • Applying a custom patch to Proton for bug fixes or game-specific tweaks
  • Building a patched Proton version for personal use or redistribution
  • Updating an existing patched build to a newer upstream tag while preserving the patch
  • Creating reproducible custom Proton builds for testing or quality assurance

Strengths

  • Automates submodule bootstrapping (e.g., xz) and retries flaky clones
  • Dry-run patch application with automatic handling of Wine server protocol file failures
  • Supports both CachyOS SLR and Proton-GE forks with one script
  • Optionally installs the finished build directly into Steam's compatibility tools directory

Considerations

  • First build is time-consuming due to full submodule download and compilation
  • Only supports container-based builds (podman or docker) and Linux only
  • Limited to two specific Proton forks (CachyOS SLR and Proton-GE) and does not support arbitrary upstream sources

README quick start

Usage

Description

Interactive clone+patch+build+update automation script for CachyOS-SLR & Proton-GE Proton forks

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