anchor.diff:            --keys-directory ${cfg.dataDir} \
             --generate-keys
         '';
  +      environment.PYTHONPATH = makeSearchPathOutput "lib" cfg.package.python.sitePackages [ pluginsEnv ];
         serviceConfig = {
           Type = "notify";
           User = "matrix-synapse";
  
positive.code:   logConfigFile = pkgs.writeText "log_config.yaml" cfg.logConfig;
    mkResource = r: ''{names: ${builtins.toJSON r.names}, compress: ${boolToString r.compress}}'';
    mkListener = l: ''{port: ${toString l.port}, bind_address: "${l.bind_address}", type: ${l.type}, tls: ${boolToString l.tls}, x_forwarded: ${boolToString l.x_forwarded}, resources: [${concatStringsSep "," (map mkResource l.resources)}]}'';
    configFile = pkgs.writeText "homeserver.yaml" ''
  ${optionalString (cfg.tls_certificate_path != null) ''
  tls_certificate_path: "${cfg.tls_certificate_path}"
  
negative.code:         defaultText = "pkgs.matrix-synapse";
          description = ''
            Overridable attribute of the matrix synapse server package to use.
          '';
        };
        plugins = mkOption {
          type = types.listOf types.package;
          default = [ ];
          defaultText = "with config.services.matrix-synapse.package.plugins [ matrix-synapse-ldap3 matrix-synapse-pam ]";
          description = ''
            List of additional Matrix plugins to make available.
          '';
        };
        no_tls = mkOption {
  