Who has had success installing a Guix system on arm?

[Jesse Gibbons]

For almost a year I've been trying to build a Guix system for arm, but I 
haven't had any success, to the point where I've become a bit 
frustrated. Has anyone in this mailing list successfully used the Guix 
system on an armhf or aarch64 computer? If so would you mind sharing 
details, such as:

-> Which board did you get working with guix system (banana pi m2u, 
novena, beaglebone black, pine64-plus, etc.)?
-> Did you build natively or cross-build from a different system?
-> What version of guix did you use? (what did guix describe say?)
-> If the board you got working can boot from an internal (emmc) or 
external (microsd) drive, which one did you get working?
-> Would you mind sharing the operating-system definition that was 
successful?

Thanks,
-Jesse