Future-proofing / Maintainance

This is a meta-ticket that contains stuff that isn't really on the roadmap (#1). Tickets in here don't directly provide value to the customers, but they will greatly improve our development workflow and speed up our own progress in the future.

Start by reviewing issue #1 and the maintenance work grouped under this meta-ticket. The payload does not identify a file, entry point, concrete task, or completion criterion, so the specific change and definition of done must be established before implementation.

Written by the indexing model from the issue text.