But as I maintain only a library of pre-build(-once) software, rather than being an actual package maintainer - surely there is the whole other side that I normally do not see, much less touch.
Having said that, I'm all for better tooling - it's just that the project doesn't even hint, much less describe, the actual benefits for the people who will (sooner or later? have to?) use it.
And, unfortunately, I've been doing this for long enough to approach _any_ increase in complexity with at least anxiety, if not outright sadness (at "you could have spent that time/money on more _useful_ work", usually).