Improve service dependency management

flake.nix

@@ -2,7 +2,7 @@
   description = "System configuration for zion";
 
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-unstable";
+    nixpkgs.url = "nixpkgs/nixos-22.11";
     agenix = {
       url = "github:ryantm/agenix";
       inputs.nixpkgs.follows = "nixpkgs";

modules/periodic.nix

@@ -49,6 +49,7 @@ in {
     requires = [ "systemd-udev-settle.service" ];
     after = [ "systemd-udev-settle.service" ];
     conflicts = [ "umount.target" ];
+    requiredBy = [ "syncthing.service" "radicale.service" "gitea.service" ];
   };
 
   # HACK: restart services dependent on ZFS afer mount

modules/webstack.nix

@@ -200,5 +200,6 @@
     "radicale.service"
     "dendrite.service"
     "phpfpm-wallabag.service"
+    "systemd-tmpfiles-setup.service"
   ];
 }