README.md

@@ -47,6 +47,7 @@ To enable automatic updates for a host, set `aux.system.services.autoUpgrade = t
 aux.system.services.autoUpgrade = {
   enable = true;
   configDir = config.secrets.nixConfigFolder;
+  extraFlags = "--build-host hevana";
   onCalendar = "daily";
   user = config.users.users.aires.name;
 };

flake.lock

@@ -331,11 +331,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1729044727,
-        "narHash": "sha256-GKJjtPY+SXfLF/yTN7M2cAnQB6RERFKnQhD8UvPSf3M=",
+        "lastModified": 1728909085,
+        "narHash": "sha256-WLxED18lodtQiayIPDE5zwAfkPJSjHJ35UhZ8h3cJUg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dc2e0028d274394f73653c7c90cc63edbb696be1",
+        "rev": "c0b1da36f7c34a7146501f684e9ebdf15d2bebf8",
         "type": "github"
       },
       "original": {

hosts/Hevana/default.nix

@@ -44,6 +44,32 @@ in
   #   To see all available timezones, run `timedatectl list-timezones`.
   time.timeZone = "America/New_York";
 
+  # Build Nix packages for other hosts.
+  # Runs every day at 4 AM
+  systemd = {
+    services."build-hosts" = {
+      serviceConfig = {
+        Type = "oneshot";
+        User = "root";
+      };
+      path = config.aux.system.corePackages;
+      script = ''
+        cd ${config.secrets.nixConfigFolder}
+        nixos-rebuild build --flake .#Khanda
+      '';
+    };
+    timers."build-hosts" = {
+      wants = [ "network-online.target" ];
+      after = [ "network-online.target" ];
+      wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnCalendar = "04:00";
+        Persistent = true;
+        Unit = "build-hosts.service";
+      };
+    };
+  };
+
   # Configure the system.
   aux.system = {
     # Enable to allow unfree (e.g. closed source) packages.

hosts/Khanda/default.nix

@@ -50,6 +50,7 @@ in
     services = {
       autoUpgrade = {
         enable = true;
+        extraFlags = "--build-host hevana";
         configDir = config.secrets.nixConfigFolder;
         onCalendar = "weekly";
         user = config.users.users.aires.name;