This has been planned for some time.
It seems necessary to do so now because after updating inputs to track
NixOS 22.05 channels and releases, checks fail unexpectedly, with the
traces leading back to `bud`. Disabling its modules allows checks to
run successfully.
Rather than figuring out what's going wrong with `bud`, it seems more
appropriate to remove it as planned.
the `with pkgs` statement in `commands` muddies the origin of the
variables used within:
- editors are unable to provide helpful advice about undefined variables
because `with pkgs` acts as a blanket "anything is possible" signifier
- at a cursory glance, it may not be immediately clear that `system` is
coming from `pkgs.system`
- `lib` is coming from `pkgs.lib`, but we can use the `lib` module arg.
- some pkgs within `commands` are still referenced with
`pkgs.<package-name>` unnecessarily
