set default fluffy homeserver to psychal

modules/services/matrix/default.nix

@@ -6,6 +6,19 @@
 }:
 let
   sopsFolder = builtins.toString inputs.nix-secrets + "/sops";
+  fluffyconfig = pkgs.writeText "fluffychat-config.json" (
+    builtins.toJSON {
+      defaultHomeserver = "psychal.link";
+    }
+  );
+  customFluffy = pkgs.unstable.fluffychat-web.overrideAttrs (
+    final: prev: {
+
+      postInstall = ''
+        cp ${fluffyconfig} $out/config.json
+      '';
+    }
+  );
 in
 {
   imports = [
@@ -13,7 +26,7 @@ in
   ];
 
   environment.systemPackages = [
-    pkgs.unstable.fluffychat-web
+    customFluffy
     pkgs.unstable.element-web
   ];
 
@@ -53,7 +66,7 @@ in
         reverse_proxy unix//run/tuwunel/tuwunel.sock
       '';
       "fl.psychal.link".extraConfig = ''
-        root * ${pkgs.unstable.fluffychat-web}
+        root * ${customFluffy}
         file_server
       '';
       "em.psychal.link".extraConfig = ''