Let’s just not get into blame ping-pong here. I think every contributor went into this with best intentions, and then simply life happened. And it’s perfectly normal.
And I also don’t think that anyone should feel entitled to anything - answers to questions, support requests, or changes and bug fixes. I think nothing puts maintainers off than this attitude of entitlement in the community…
Regarding ‘It is all on github, so feel free to contribute.’. Yes it is, but no one is looking at that repo… there are simple one-line PR’s with no comments, merges or rejects, one of them since August. So it’s not inviting to contribute, if you’ll spend your time adding features or fixing bugs, but no one is going to get a look at it 
The last thing I wanted with this thread is to cause a flame and blame game, but it seems that I have not succeeded in that.
Anyhow, I’ve started my own implementation based on item metadata, if life will not happen, it should be a pretty good self hosted solution. Peace.