An advanced (or adventurous) user could do "dpkg --add-architecture arm64" and then start installing arm64 packages (and lots of dependencies -- expect to take up a few more gigabytes of space, especially if they're X packages).
You should probably read some documentation like https://wiki.debian.org/Multiarch/HOWTO before doing so.
I've done this before (mixing x86 32-bit with amd64, and I think once mixing armhf with arm64)
(This _is_ debian/ubuntu/derivative we're talking about, right?)
My Pinebook hasn't arrived yet, so I don't know for sure whether this'll work on the Pinebook or break things badly, but I feel optimistic.
When I get my PBP, I'd be happy to try this myself and report on the results.
You should probably read some documentation like https://wiki.debian.org/Multiarch/HOWTO before doing so.
I've done this before (mixing x86 32-bit with amd64, and I think once mixing armhf with arm64)
(This _is_ debian/ubuntu/derivative we're talking about, right?)
My Pinebook hasn't arrived yet, so I don't know for sure whether this'll work on the Pinebook or break things badly, but I feel optimistic.
When I get my PBP, I'd be happy to try this myself and report on the results.