containers: clean up domain names

containers/citrine/configuration.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }: {
+{ config, fqdn, lib, ... }: {
   system.stateVersion = "25.11";
   networking.firewall.allowedTCPPorts = [ 22 3000 ];
   networking.firewall.allowedUDPPorts = [ 22 3000 ];
@@ -13,8 +13,8 @@
     settings = {
       DEFAULT.APP_NAME = "Garden";
       server = {
-        DOMAIN = "garden.lava.moe";
-        ROOT_URL = "https://garden.lava.moe/";
+        DOMAIN = fqdn;
+        ROOT_URL = "https://${fqdn}/";
         HTTP_PORT = 3000;
         START_SSH_SERVER = true;
         BUILTIN_SSH_SERVER_USER = "git";

containers/citrine/flake.nix

@@ -6,6 +6,7 @@
   outputs = { nixpkgs, catppuccin, ... }:
   let
     name = "citrine";
+    fqdn = "garden.lava.moe";
     subnetId = "3";
 
     subnet = x: "fd0d:1::${subnetId}:${toString x}";
@@ -35,7 +36,7 @@
         internalInterfaces = [ "ve-${name}" ];
       };
 
-      services.nginx.virtualHosts."garden.lava.moe" = {
+      services.nginx.virtualHosts."${fqdn}" = {
         useACMEHost = "lava.moe";
         forceSSL = true;
         locations."/".proxyPass = "http://[${client}]:3000";
@@ -53,6 +54,7 @@
         nixpkgs = nixpkgs;
         ephemeral = true;
         config = { imports = modules; };
+        specialArgs = { inherit fqdn; };
 
         bindMounts."persist" = {
           hostPath = "/persist/containers/${name}";