Awesome! Super simple to use amidi for firmware updates but now that I know the correct size I can comfortably backup my Digis. Thanks!
Also this forum supports markdown so if you wrap your code in triple backticks you get:
$ amidi -l
Dir Device Name
IO hw:2,0,0 Elektron Digitakt MIDI 1
$ amidi -p hw:2,0,0 -r my_project.sys
$ amidi -p hw:2,0,0 -s my_project.sys
Makes it a bit easier 