let hash = "sha256-KusCJj5MVmRbniI9aTjRInPMpIDZKWs5w+TImVKHrPc="; sha256 = "sha256-SImgV47EfKy70VmcBREu1aiZFvX0+h0Ezw+/rUZufAg="; matrix-synapse = _: super: { matrix-synapse = super.matrix-synapse.overrideAttrs (_: rec { version = "1.97.0"; 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