A kind of a configuration management tool, helping me manually "reconcile" between three concurrent aspects of the state of a machine (and then apply the result):
- what is "out there" on the machine ("queried"),
- vs. what was the state last recorded in (git) history,
- vs. what I want there to be on the machine (described in Nickel language https://nickel-lang.org/, a statically-typed successor to the Nix language).