Abit of a tweet storm from me, but this is one project worth showcasing.
Jonny Hyman has over the past few months been working to develop his own hybrid rocket propulsion system. Not only has he been developing the engine but also all the necessary ground support equipment required which is just as impressive as the engine itself.
Jonny has produced an impressive engine monitoring system, from the GUI to the camera system set up in his backyard. The engine is expected to produce 40N of thrust, able to be throttled and will have fast restart times.