I recommend NXEngine-evo. I don’t have a Devterm to test, but you could definitely build it from source and it would work great. I uploaded a build that I did from my Raspberry Pi 3B a couple months ago. It works great on my Raspberry Pi, and it should work on any armhf Linux computer that uses glibc. It’s also an AppImage. AppImages that are built for ARM totally work on the DevTerm.