Graphene does everything you're asking, except for the niche fixed location feature you specifically want, which you're welcome to request, or just implement yourself and make a PR.
I'm going to be a bit snarky here, but I always find the entitlement around features in open source software baffling. This isn't a multi billion dollar corporation selling you something. It's enthusiasts making you something (honestly, incredible), for free, in their spare time, outside of their daily jobs. They're doing their absolute best here.