Squashed 'libraries/nanopb/' content from commit 8189d53

git-subtree-dir: libraries/nanopb
git-subtree-split: 8189d538dd80a89bc6fa1672336b99c9c5cd076b
Merge commit '6d224ae2ab59d31549afb88d66315608c95a4a88' as 'libraries/nanopb'
Meh, no pb
Working configuration interface