I had the same idea when I thought about it a second time, and just came back here to answer to my own post - obviously you were much faster No need to increase complexity with locks when you can just subscribe to multiple items in the first place. Didn’t think of that when I wrote them back in - must have been 2017/2018.
If I remember correctly you once documented some common patterns that cover most of the common use cases - yes, I found them:
I’m slowly getting really motivated to do a fresh start on some free weekend.