The Application Server is in progress, but it builds. The problem is that on x86, you can fall back on the BIOS w/ VESA to display video; while ARM lacks that functionality. If you can find/build a video driver it should Just Work(tm).
Err ... no? The problem with the ARM port is the lack of device drivers, and the fact that there is no userland/syscalls ABI set up yet at all. So there's still a lot to be done here.
https://download.haiku-os.org/nightly-images/arm/
It's even buggier than the x86 version though, and you don't have any software beyond what you compile for it yourself.