working on harmonia

modules/dynamicism/tzupdate.nix

@@ -0,0 +1,20 @@
+{ pkgs, lib, config, ... }: let
+  cfg = config.dynamicism.for.tzupdate;
+
+
+  # FIXME: referring to config.dynamicism.finalSettings.* in here
+  # makes lib.checkAssertWarn in the generic module cause infinite recursion.
+  #finalSettings = config.dynamicism.finalSettings.tzupdate;
+  finalSettings = config.services.tzupdate.timer;
+in
+{
+  dynamicism.for.tzupdate = {
+    source-options = [ "services.tzupdate.timer" ];
+
+    unitDropins."tzupdate.timer" = pkgs.writeText "tzupdate-timer-override.conf" ''
+      [Timer]
+      OnCalendar=
+      OnCalendar=${finalSettings.interval}
+    '';
+  };
+}