Let's see if I can build cinny from source

nixos/server/package-configs/cinny/default.nix

@@ -4,40 +4,18 @@
   inputs,
   lib,
   ...
-}: let
-  port = 2143;
-  configFile =
-    pkgs.writeText "config.json"
-    ''
-      {
-          "defaultHomeserver": 0,
-          "homeserverList": [
-              "matrix.gladtherescake.eu"
-          ],
-          "allowCustomHomeservers": false
-      }
-    '';
-in {
-  virtualisation.oci-containers.containers."cinny" = {
-    autoStart = true;
-    ports = ["${toString port}:80"];
-    volumes = [
-      "${configFile}:/app/config.json"
-    ];
-    image = "ajbura/cinny:latest";
-  };
-
+}: {
   services.nginx = {
     enable = true;
     virtualHosts = {
       "cinny.gladtherescake.eu" = {
+        root = "${pkgs.cinny}";
         ## Force HTTP redirect to HTTPS
         forceSSL = true;
         ## LetsEncrypt
         enableACME = true;
         locations."/" = {
-          proxyPass = "http://localhost:${toString port}";
-          proxyWebsockets = true;
+          index = "index.html";
         };
       };
     };