From 52e88c1da11c5657b95358c6fcfc6313b58ab4b7 Mon Sep 17 00:00:00 2001
From: oqyude <oqyude@gmail.com>
Date: Sat, 16 May 2026 12:46:59 +0300
Subject: [PATCH] systemd-routine - prebuild

---
 configurations/vds.nix                  | 10 +++----
 modules/essentials/default.nix          |  2 +-
 modules/essentials/packages.nix         |  2 +-
 modules/essentials/systemd-routine.nix  | 26 -----------------
 modules/essentials/systemd-routines.nix | 39 +++++++++++++++++++++++++
 5 files changed, 46 insertions(+), 33 deletions(-)
 delete mode 100644 modules/essentials/systemd-routine.nix
 create mode 100644 modules/essentials/systemd-routines.nix

diff --git a/configurations/vds.nix b/configurations/vds.nix
index 924f6f1..9bc4e16 100644
--- a/configurations/vds.nix
+++ b/configurations/vds.nix
@@ -77,10 +77,10 @@ let
         nameservers = [
           "1.1.1.1"
           "8.8.8.8"
-          "2001:4860:4860::8844"
-          "2001:4860:4860::8888"
-          "2606:4700:4700::1111"
-          "2606:4700:4700::1001"
+          # "2001:4860:4860::8844"
+          # "2001:4860:4860::8888"
+          # "2606:4700:4700::1111"
+          # "2606:4700:4700::1001"
         ];
         hostName = "${xlib.device.hostname}";
         networkmanager.enable = true;
@@ -115,7 +115,7 @@ let
             }
           '';
         };
-        enableIPv6 = true;
+        enableIPv6 = false;
         interfaces.ens3 = {
           useDHCP = true;
           # ipv4.addresses = [
diff --git a/modules/essentials/default.nix b/modules/essentials/default.nix
index c8e356a..3a8a275 100644
--- a/modules/essentials/default.nix
+++ b/modules/essentials/default.nix
@@ -7,7 +7,7 @@
     ./packages.nix
     ./services.nix
     ./settings.nix
-    # ./systemd-routine.nix
+    ./systemd-routines.nix
     ./shell.nix
   ];
 }
diff --git a/modules/essentials/packages.nix b/modules/essentials/packages.nix
index 2b8625a..5d15ae5 100644
--- a/modules/essentials/packages.nix
+++ b/modules/essentials/packages.nix
@@ -202,7 +202,7 @@ in
       flake = "/etc/nixos";
       clean = {
         enable = true;
-        extraArgs = "--keep 3 --keep-since 2d";
+        extraArgs = "--keep 2 --keep-since 2d";
         dates = "daily";
       };
     };
diff --git a/modules/essentials/systemd-routine.nix b/modules/essentials/systemd-routine.nix
deleted file mode 100644
index fcb068c..0000000
--- a/modules/essentials/systemd-routine.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  config,
-  xlib,
-  ...
-}:
-{
-  systemd = {
-    services.nixos-auto-rebuild = {
-      description = "Auto rebuild NixOS config";
-      serviceConfig = {
-        Type = "oneshot";
-        User = "${xlib.device.username}";
-        WorkingDirectory = "/etc/nixos";
-        ExecStart = "gp-ns";
-      };
-    };
-    timers.nixos-auto-rebuild = {
-      description = "Run NixOS auto rebuild at 4am daily";
-      wantedBy = [ "timers.target" ];
-      timerConfig = {
-        OnCalendar = "*-*-* 04:00:00";
-        Persistent = true;
-      };
-    };
-  };
-}
diff --git a/modules/essentials/systemd-routines.nix b/modules/essentials/systemd-routines.nix
new file mode 100644
index 0000000..c3a8603
--- /dev/null
+++ b/modules/essentials/systemd-routines.nix
@@ -0,0 +1,39 @@
+{
+  config,
+  pkgs,
+  xlib,
+  ...
+}:
+{
+  systemd = {
+    services = {
+      nixos-prebuild = {
+        description = "Prebuild NixOS closure";
+        serviceConfig = {
+          CPUQuota = "20%";
+          User = "oqyude";
+          Group = "users";
+          Nice = 10;
+          Type = "oneshot";
+          WorkingDirectory = "/tmp";    
+          Environment = [
+            "HOME=/home/oqyude"
+          ];
+          ExecStart = ''
+            ${pkgs.nix}/bin/nix build --no-link /etc/nixos#nixosConfigurations.${config.networking.hostName}.config.system.build.toplevel
+          '';
+        };
+        wantedBy = [ "multi-user.target" ];
+      };
+    };
+    timers = {
+      nixos-prebuild = {
+        wantedBy = [ "timers.target" ];
+        timerConfig = {
+          OnCalendar = "*-*-* 04:00:00";
+          Persistent = true;
+        };
+      };
+    };
+  };
+}
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