Proton-CachyOS
github.com
Spec sheet
- Purpose
- Proton-CachyOS is a Steam Play and umu-launcher compatibility tool that builds on Proton with experimental features and third-party tools.Read 30 Sep 2026 · github.com
- Integrations
- The documented options include automatic OptiScaler injection and a Discord Rich Presence bridge for games running in Proton.Read 30 Sep 2026 · github.com
- Support
- CachyOS directs issue reports to GitHub, its forum, Discord support channels, and Reddit, with the team and community described as volunteers.Read 30 Sep 2026 · wiki.cachyos.org
- License
- The repository lists a BSD-3-Clause license.Read 30 Sep 2026 · github.com
- Anti-cheat caution
- The README warns that the dxvk-sarek async branch should not be used with games using anti-cheat or multiplayer games in general.Read 30 Sep 2026 · github.com
- Anti-cheat limitation
- The DXVK-Sarek async option should not be used with games using anti-cheat or multiplayer games in general.Read 30 Sep 2026 · github.com
- Architecture limitation
- ARM64 builds require an ARM64 build machine and cannot be used in x86 Steam running through FEX.Read 30 Sep 2026 · github.com
- Audio and display
- The README documents PipeWire audio support and experimental native Wayland support.Read 30 Sep 2026 · github.com
- Build environment
- Most Proton builds run inside the Proton SDK container and require Docker or Podman on the host.Read 30 Sep 2026 · github.com
- Compatibility limits
- The README warns that winewayland is experimental and work in progress, and the release page cautions that package variants may cause confusion and suggests x86_64.Read 30 Sep 2026 · github.com
- Distribution
- The README says binary packages for Steam Linux Runtime are available in the repository’s releases.Read 30 Sep 2026 · github.com
- Graphics features
- Runtime options include DXVK low-latency support, FSR and DLSS upgrades, and Vulkan Reflex support.Read 30 Sep 2026 · github.com
- Graphics integrations
- Proton-CachyOS includes options for DXVK-Sarek, DXVK low latency, D7VK, FSR4, DLSS, XeSS, and alternative NVIDIA libraries.Read 30 Sep 2026 · github.com
- Intended audience
- The project says its custom Proton distribution is for users who want to test bleeding-edge features, community modifications, and stores other than Steam.Read 30 Sep 2026 · github.com
- Licensing
- The repository says Proton source and binaries are governed by a variety of licenses, with component licenses included in their directories.Read 30 Sep 2026 · github.com
- Maintainer
- The CachyOS team page identifies Stelios Tsampas as developer and maintainer of CachyOS Wine and Proton.Read 30 Sep 2026 · cachyos.org
- OptiScaler
- OptiScaler injection is supported but described as work in progress and not guaranteed to work with all games.Read 30 Sep 2026 · github.com
- Release signing
- The latest release page states that its tag was signed with the committer’s verified signature.Read 30 Sep 2026 · github.com
- Runtime configuration
- Users can configure behavior with environment variables and Steam launch options, including logging, graphics, audio, input, and compatibility settings.Read 30 Sep 2026 · github.com
- Steam recommendation
- The README recommends that most users use the Proton provided by the Steam Client itself.Read 30 Sep 2026 · github.com
- Supported clients
- It is designed for the Steam client and umu-launcher.Read 30 Sep 2026 · github.com
- Target users
- The project is intended for users who want bleeding-edge features, community modifications, or stores other than Steam.Read 30 Sep 2026 · github.com
- Wayland and audio
- Native Wayland support is experimental, while the Wine PipeWire audio driver is enabled by default.Read 30 Sep 2026 · github.com
- Windows game support
- Proton uses Wine to let Windows-exclusive games run on Linux.Read 30 Sep 2026 · github.com
- Windows games
- Proton enables Windows-exclusive games to run on Linux through Wine.Read 30 Sep 2026 · github.com
Where Specifiction places it
- Game Compatibility Layers#21 of 277.1
