I’ve been a BeOS fan since R4.5, and a couple of years ago started working on a Haiku native video/media editor (a couple of hours development per month, since its hard to find much free time).

Its generally a very pleasant desktop experience, still love the xray folder navigation system and clear file system hierarchy. The inter window IPC mechanism is a ‘accidental’ actor model API, in C++98 pre std standard.

A screenshot from 6 months ago: https://discuss.haiku-os.org/uploads/default/original/2X/a/a...