I worked on the history system to Shrine's shell (Lsh) in 2020. Development of Shrine is stalled currently so the changes never propagated to Shrine proper.
I would call Shrine a fairly minimalist fork, in that there's a lot built on top of TempleOS, but the core is mostly the same. A more minimalist fork is TinkerOS, which is a lot closer to stock TempleOS but with bugfixes, modern hardware support, and some software packages added.
ZealOS is a maximalist fork, changing the core of TempleOS everywhere the authors see fit. Nothing wrong with that either.
The fork authors are in contact with each other and discuss ideas / share code occasionally.
I wonder how much is compatible between these projects. I think the binaries from each should run on the other. Though some features probably required changes to the kernel.
