let hash = "sha256-26w926IPkVJiPVMoJUYvIFQMv5Kc6bl7Ps1mZsZJ2Xs="; sha256 = "sha256-xq6qPr7gfdIleV2znUdKftkOU8MB8j55m78TJR4C5Vs="; matrix-synapse = _: super: { matrix-synapse = super.matrix-synapse.overrideAttrs (_: rec { version = "1.94.0"; pname = "matrix-synapse"; src = super.fetchFromGitHub { owner = "matrix-org"; repo = "synapse"; rev = "v${version}"; inherit hash; }; cargoDeps = super.rustPlatform.fetchCargoTarball { inherit src sha256; name = "${pname}-${version}"; }; }); }; in matrix-synapse