add note on better solution

infra/common/proxmox-qemu-vm.nix

@@ -1,5 +1,13 @@
 let
-  # pulling this in manually over from module args resolves an infinite recursion
+  # pulling this in manually over from module args resolves an infinite recursion.
+  # FIXME: instead untangle `//infra/flake-part.nix` and make it stop passing wild functions.
+  # move moving towards a portable-services-like pattern where some things are submodules.
+  # Right now those wild functions are for parameterising a bunch of things,
+  # and the modular way to do that would be options --
+  # obviously you can't use those for `imports`,
+  # so one way to decouple fixpoints is to isolate them into submodules.
+  # Therefore one approach would be to try to go down the call graph,
+  # and see where what's currently a function could be a `submodule` field of something else.
   sources = import ../../npins;
 in
 {