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umu

umu-run

Security objectives of the steam profiles:

  • Ensure no user data is accessed by either umu or umu games
  • Limit what steam/games can access to the host

Overall architecture of the steam profiles: 

umu-run
├── umu-runtime           # Pressure-vessel, steam runtime, create the game sandbox
│   └── steam-bwrap        # Native games
│       └── steam-game     # Proton games (sandboxed)
├── umu-run//bwrap
├── umu-run//ldd
└── umu-run//ldconfig