I run the N2 with Debian Stretch on ARM64; there is a buster version as well. I chose to compile piaware, dump1090-fa, dump978-fa explained in this post in detail and they are in arm64.
If you run an Airspy, you need to get the libraries for 32-bit armhf. Also needed for FR24 or Planefinder (don’t know about other feeders). Enough detail is provided in the post above.