diff --git a/flake.nix b/flake.nix
index 7ea9993..7d62ec0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -85,9 +85,10 @@
             description = "The UDP port to host the server on";
           };
           proximity = {
-            type = lib.types.attrs;
+            type = types.nullOr lib.types.attrs;
+            default = null;
             port = lib.mkOption {
-              type = lib.types.port;
+              type = types.nullOr lib.types.port;
               example = 4433;
               description = "The UDP port to host the proximity chat server on";
             };
@@ -99,7 +100,7 @@
             keyPath = lib.mkOption {
               type = lib.types.path;
               example = "cert.pem";
-              description = "The certificate used for encrypting the WebTransport stream";
+              description = "The private key used for encrypting the WebTransport stream";
             };
           };
         };
@@ -112,8 +113,8 @@
               WorkingDirectory = "${self.packages.${system}.default}";
               Type = "simple";
               ExecStart = let
-                proxRes = 5;
-              in ''${self.packages.${system}.default}/bin/smo-server -t ${toString tcpPort} -u ${toString udpPort}'';
+                proxRes = if proximity == null then "-p ${proximity.port} --prox-cert ${proximity.certPath} --prox-key ${proximity.keyPath}" else "";
+              in ''${self.packages.${system}.default}/bin/smo-server -t ${toString tcpPort} -u ${toString udpPort} ${lib.strings.optionalString enableFaker "--enable-faker"}'';
             };
           };
         };