I just installed MM on a Pi 4 - no issues. Default modules are ok, added Ecobee that was good, added Yahoo finance and that was good, but then just about any other I tried it didn’t work. iFrame modules don’t seem to work (any of them), flight tracking, and a few others then I decided after installing then removing close to a dozen I thought I would ask - how much is actually working. Most of the repo’s are over a year since last update, others are years.