feat(systemd): add and enable systext + confext units

flake.nix

@@ -140,6 +140,7 @@
               # ./modules/patagia-agent.nix
               ./modules/partitions.nix
               ./modules/system_overrides.nix
+              ./modules/sysext.nix
               ./modules/sysupdate.nix
               ./modules/utils.nix
             ];

modules/patagia-agent.nix

@@ -6,11 +6,6 @@
 
 {
 
-  system.activationScripts.patagia-agent = ''
-    mkdir -p /var/lib/extensions
-    mkdir -p /etc/systemd/extensions
-  '';
-
   environment.etc."sysupdate.patagia-agent.d".source =
     let
       format = pkgs.formats.ini { listToValue = toString; };

modules/sysext.nix

@@ -0,0 +1,23 @@
+{ config, pkgs, ... }:
+{
+  system.activationScripts.sysext = ''
+    mkdir -p /var/lib/confexts
+    mkdir -p /var/lib/extensions
+    mkdir -p /etc/systemd/extensions
+  '';
+
+  systemd.additionalUpstreamSystemUnits = [
+    "systemd-confext.service"
+    "systemd-sysext.service"
+  ];
+
+  systemd.services."systemd-confext" = {
+    enable = true;
+    wantedBy = [ "multi-user.target" ];
+  };
+
+  systemd.services."systemd-sysext.service" = {
+    enable = true;
+    wantedBy = [ "multi-user.target" ];
+  };
+}

modules/sysupdate.nix

@@ -27,12 +27,6 @@ in
 {
   environment.etc."systemd/import-pubring.gpg".source = "${gpgKeyring}/import-pubring.gpg";
 
-  systemd.additionalUpstreamSystemUnits = [
-    "systemd-sysext.service"
-  ];
-
-  systemd.services."systemd-sysext.service".enable = true;
-
   systemd.sysupdate = {
     enable = true;