Add a service to automatically fetch devshells

Justfile

@@ -23,7 +23,7 @@ format:
     treefmt .
 
 switch:
-    nh os switch
+    nh os switch --refresh
 
 switch_update:
     nh os switch --refresh --update

common/modules/home/default.nix

@@ -3,6 +3,7 @@
     ./dconf
     ./desktop-files.nix
     ./starship.nix
+    ./services.nix
     ./zsh.nix
   ];
 

common/modules/home/services.nix

@@ -0,0 +1,39 @@
+{pkgs, ...}: {
+  systemd.user.services.sync-dev-shells = {
+    Unit = {
+      Description = "Background sync for Nix dev shells repository";
+      After = ["network-online.target"];
+      Wants = ["network-online.target"];
+    };
+
+    Service = {
+      Type = "oneshot";
+      WorkingDirectory = "%h/.config/nix-shells";
+
+      ExecStart = ''
+        ${pkgs.bash}/bin/bash -c " \
+          ${pkgs.git}/bin/git pull --rebase --autostash || \
+          ${pkgs.libnotify}/bin/notify-send -u critical 'Sync Failed' 'Nix dev shells encountered a git conflict or network error.' \
+        "
+      '';
+
+      PassEnvironment = ["DBUS_SESSION_BUS_ADDRESS" "DISPLAY"];
+    };
+  };
+
+  systemd.user.timers.sync-dev-shells = {
+    Unit = {
+      Description = "Check for dev shell updates every hour";
+    };
+
+    Timer = {
+      OnBootSec = "2m";
+      OnUnitActiveSec = "1h";
+      Persistent = true;
+    };
+
+    Install = {
+      WantedBy = ["timers.target"];
+    };
+  };
+}

flake.lock

@@ -95,11 +95,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1774539458,
+        "lastModified": 1774626137,
-        "narHash": "sha256-H9GIOqdMfQZ6lFetsQhO9TCq53hYzpTHDWOt3PRh9V0=",
+        "narHash": "sha256-1WelwA45Xm4glTG8R9IX9jYeFKDG2HbR79jAauLezUE=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "e2e5f512b33ed19a7a3271d0b73ed5eefcc0be5f",
+        "rev": "9df3a639007cfe0d074433f7fc225ea94f877d08",
         "type": "github"
       },
       "original": {
@@ -179,11 +179,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1774509978,
+        "lastModified": 1774612448,
-        "narHash": "sha256-hdl5+yPF2KXSpuFy6dTHe62c5hKiEAhd1fq8UagtTdQ=",
+        "narHash": "sha256-+uVDNwxihd82I6aZTgNvIXqFyLcfUBkg/Y0A8UBgycg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b317a7eaabaea07be8c71aded8b266fddce0a181",
+        "rev": "b55b0e0c856ac73c7f507336780f97aa7a9746e2",
         "type": "github"
       },
       "original": {