final: prev: { gamescope = prev.gamescope.overrideAttrs ( old: { src = prev.fetchFromGitHub { owner = "ValveSoftware"; repo = "gamescope"; rev = "d0d23c4c3010c81add1bd90cbe478ce4a386e28d"; fetchSubmodules = true; hash = "sha256-Ym1kl9naAm1MGlxCk32ssvfiOlstHiZPy7Ga8EZegus="; }; }); }