get hedgedoc working

flake.nix

@@ -57,6 +57,7 @@
             ./modules/monitoring.nix
             ./modules/mailserver.nix
             ./modules/vaultwarden.nix
+            ./modules/hedgedoc.nix
           ];
 
           system.stateVersion = "22.11";

modules/hedgedoc.nix

@@ -2,12 +2,38 @@
 {
   services.hedgedoc = {
     enable = true;
-    domain = "pad.katzen.cafe";
     settings = {
+      domain = "pad.katzen.cafe";
+      port = 3001;
+      protocolUseSSL = true;
+      allowFreeURL = true;
+      requireFreeURLAuthentication = true;
       oauth2 = {
-        userProfileURL = "";
+        userProfileURL = "https://auth.katzen.cafe/realms/katzen.cafe/protocol/openid-connect/userinfo";
-        
+        userProfileUsernameAttr = "preferred_username";
+        userProfileDisplayNameAttr = "name";
+        userProfileEmailAttr = "email";
+        tokenURL = "https://auth.katzen.cafe/realms/katzen.cafe/protocol/openid-connect/token";
+        authorizationURL = "https://auth.katzen.cafe/realms/katzen.cafe/protocol/openid-connect/auth";
+        clientID = "hedgedoc";
+        providerName = "Keycloak";
+        # the envfile should overwrite this?
+        clientSecret = "none";
+        scope = "openid email profile";
       };
+      db = {
+        dialect = "postgres";
+        host = "/run/postgresql";
+        database = "catpad";
+      };
+    };
+    environmentFile = "/var/lib/secrets/hedgedoc.env";
+  };
+  deployment.keys = {
+    "hedgedoc.env" = {
+      keyCommand = [ "pass" "hedgedoc/envfile" ];
+      destDir = "/var/lib/secrets";
+      permissions = "0604";
     };
   };
 }

modules/postgres.nix

@@ -12,6 +12,7 @@
     ];
     ensureDatabases = [
       "forgejo"
+      "catpad"
     ];
   };
 }

modules/proxy.nix

@@ -139,6 +139,14 @@
             '';
         };
       };
+      "pad.katzen.cafe" = {
+        forceSSL = true;
+        enableACME = true;
+        locations."/" = {
+          proxyPass = "http://localhost:3001";
+          proxyWebsockets = true;
+        };
+      };
       "forge.katzen.cafe" = {
         forceSSL = true;
         enableACME = true;