Please add a Linux version for ARM cpu, namely Raspbian.
In other relevant forums, people seem to manage to run Guitarix on raspberry pi 3,
and now with new raspberry pi 4, if Amplitube can run on it, it will be amazing.
RP4 with 4GB/32GB is $100, and can be great for live usage.
Also Raspbian can be compiled/configured for real-time much better than Windows/macOS.
For license, not sure if software is enough, maybe need some hardware like ilok/lockey/etc,
but still it will be a great deal.