(Not sure whether this should be pinned here or makes sense at all, but well. I'm okay with any piece of software that might be ready and available to do self-hosting. But much more than that I appreciate and am looking for offerings that are hosted, developed, supported in a long-term sustainable manner and for which there are alternatives that allow me to vote with my feet safely, completely, easily in case one offering turns sour or inacceptable for whichever reason. And looking at things from that angle, very few systems out there seem a good choice today.)