Hi Alessio,
You know, Fedora Silverblue is available for aarch64, but it is not provided as a raw image. As far as I see around, in order to install Silverblue on a Raspberry Pi, a lot of trickies are needed in order to boot the ISO from an USB stick etc. So. I tried to install Fedora IoT, then I added the Silverblue remotes and rebased the system to it. Well. It worked. Do you see any contraindications?
Is the last word meant to be contradictions? If so, no I don't think so, that's one of the great things of ostree.
Did you have any other queries or problems from your experiment or is this more a heads up and to start a discussion?
I actually have on my to-do list to add a silverblue raw image but I've not got around to it as it doesn't come up as a request that often, but it also shouldn't be too hard so if there's lurkers here that are interested in this use case do all feel to reply to this thread.
P