Hi @a-w ,
If you're running on target, you'll need an arm64 container flavor (not x86/64), see this docker file as an example:
https://gitlab.com/voxl-public/voxl-docker-images/voxl-docker-mavsdk-python/-/blob/master/Dockerfile#L1
You'd need to download yourself and then push to the target (or if VOXL is connected to the internet, download it and manually install).
There's not an 'apt-get' like setup for opkg unfortunately. Sometimes this means you need to build from source.