Apologies if my Poettering rant was worded too strongly. I guess I just mean that there are very good reasons people dislike him so much. He's earned far less animosity than he deserves imo.

s6 is cool, though I've not played around with it too much. I've mostly stuck with runit on my Linux systems since it's simple, fast and I'm happy with it. You might take a look at dinit, too, if you haven't already. It's still maturing, but dinit is probably the most syntactically similar to systemd. Both are very fast.