Hi @maxritter,
Good to know your approach works. However, I’m currently trying to contribute the board as a community supported in balena-jetson. In this way the image can be downloaded directly from BalenaCloud similar to the Aetina N510 TX2 board for example. Now trying to resolve some last issues with @acostach but at least it should work based on your experience.
Good to know somebody is working with the jn30b as well! Feel free to contribute, would love to share experiences.