Most of the application specific images have stopped receiving updates. This is because they were time consuming to create/validate, and were mostly just the base-64 image with whatever package pre-installed via pkgin. This was also happened around the time of the rise of Docker, so most people were opting for docker images produced by upstream maintainers.
In most cases, you can just make a base-64 image and `pkgin in` whatever package you wanted and it's pretty much the same thing.
The Prometheus stuff is heavily used by us internally, and while it's usable, it's pretty experimental (i.e., changing quickly). I don't see any pull requests or issues that are obviously from you, so if you point me at something I can take a look at it.
Also, lots of little things on GitHub like the examples of using Prometheus and others have PRs (some of them by me) which have never had any comments, no acknowledgement that they've been seen, but also no indication that the project isn't maintained or is just an example and that we shouldn't submit PRs.
All that being said, in general thanks for a great product.