Merge pull request #201949 from Icy-Thought/picom-backend-egl

    };

    backend = mkOption {

      type = types.enum [ "glx" "xrender" "xr_glx_hybrid" ];

      type = types.enum [ "egl" "glx" "xrender" "xr_glx_hybrid" ];

      default = "xrender";

      description = lib.mdDoc ''

        Backend to use: `glx`, `xrender` or `xr_glx_hybrid`.

        Backend to use: `egl`, `glx`, `xrender` or `xr_glx_hybrid`.

      '';

    };