btw. got the ubuntu server 18.04 to boot on the raspberry pi 3+ as well , the difference from raspbian is that this is the true aarch64 and isn't trying to be backwards compatible with older raspberry boards ... and i have no problem with that 😄
upside is that openjdk shipped from ubuntu boys is installable just with "apt install " , and that has no issues with maven https ssl either, just works ... seems to be a bit snappier too than the zulu once it's up and running (maybe the zulu was just suffering from arm32hf backward compatibility extra calls, don't know)
Very nice boards, indeed. Huge overkill for our application, but definitely worth considering. Thanks a bunch