let hash = "sha256-WYKuWTOP0w9Xtao9vF3+km4mXVTrt/mshcaXuF92voQ="; sha256 = "sha256-uUu2Hu4a7J49S3rhZ7xsLJQC7seYkVScYYbWaw4Q/rU="; matrix-synapse = _: super: { matrix-synapse = super.matrix-synapse.overrideAttrs (_: rec { version = "1.95.0"; 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