Automatic NixOS upgrade module

modules/auto-upgrade/default.nix

@@ -0,0 +1,17 @@
+{
+  config,
+  options,
+  lib,
+  ...
+}: {
+  system.autoUpgrade = {
+    enable = true;
+    flake = "github:aciceri/nixfleet#${config.networking.hostName}";
+    flags =
+      lib.lists.optional
+      (builtins.hasAttr "ccrEmacs" options)
+      ["--update-input" "ccrEmacs" "ccrEmacs"];
+    dates = "daily";
+    allowReboot = false;
+  };
+}

modules/common/default.nix

@@ -5,6 +5,7 @@
 }: {
   imports = fleetModules [
     "nix"
+    "auto-upgrade"
   ];
 
   hardware.i2c.enable = true;