I noticed some core NVDA modifications (namely unfamiliar .pyc files in library.zip) while poking around on my BrailleNote evolve, so I reached out to Andrew Flatres about GPLv2 source compliance. To my delight, HumanWare actually packaged up the source code for the community! If anyone wants to take a look under the hood at how their commands and display layers interact: https://humanware.s3-accelerate.amazonaws.com/braillenote/Evolv/Public/nvda.zip
Huge thanks to Andrew and the team for turning that around so quickly, this makes my nerdy heart happy.
Additionally, I grabbed all the GPL-licensed code HumanWare distributes in NVDA's AppData directory on version 1.0, and put it in a zip file here: https://www.dropbox.com/scl/fi/s872ianc6bfzk9ogkh060/evolve-addons.zip?rlkey=q93kvhfcmxzlxhyeiemjaf37f&dl=1