feat: refactor the modules/servers directory.

modules/servers/per-server/freyja/default.nix

@@ -0,0 +1,14 @@
+{...}: let
+  servicesDir = ./services;
+  serviceFiles =
+    builtins.filter
+    (name: builtins.match "^.*\\.nix$" name != null)
+    (builtins.attrNames (builtins.readDir servicesDir));
+  hostModules = map (fn: import "${servicesDir}/${fn}") serviceFiles;
+in {
+  imports =
+    [
+      ../../common
+    ]
+    ++ hostModules;
+}

modules/servers/per-server/freyja/services/immich.nix

@@ -0,0 +1,39 @@
+{...}: {
+  services.immich = {
+    enable = true;
+    port = 2283;
+    host = "127.0.0.1";
+    accelerationDevices = ["/dev/dri/renderD128"];
+  };
+
+  users.users.immich.extraGroups = ["video" "render"];
+
+  services.traefik.dynamicConfigOptions.http = {
+    services.immich.loadBalancer.servers = [
+      {
+        url = "http://localhost:2283";
+      }
+    ];
+
+    routers.immich = {
+      rule = "Host(`immich.cronyakatsuki.xyz`)";
+      tls = {
+        certResolver = "porkbun";
+      };
+      service = "immich";
+      entrypoints = "websecure";
+    };
+  };
+
+  services.postgresqlBackup = {
+    enable = true;
+    databases = [
+      "immich"
+    ];
+  };
+
+  services.restic.backups = {
+    local.paths = ["/var/lib/immich" "/var/backup/postgresql"];
+    server.paths = ["/var/lib/immich" "/var/backup/postgresql"];
+  };
+}