I didn’t realize Dries founded/manages Drupal until I checked out the about page on his website. In any case, he has a really excellent comparison of PESOS vs POSSE on his site.
For me, I’m just trying to find as friction-free a way to collect/post/share. After a bunch of false starts I’m leaning towards WordPress as the bucket that collects everything and sends it out to other places like Mastodon, my newsletter and Day One (my journal software).
Unfortunately, iOS shortcuts integration with WordPress is horrible. Unless you fall back to old school xml-rpc stuff which feels like way too much work. This means it’s not a totally friction-free collection bucket but I feel like from a sharing-out perspective, it’s the right tool for the POSSE job.