[mcweaksauce]

Not a big fan of the name... Thought it had to do with concurrency: https://en.wikipedia.org/wiki/Semaphore_(programming)

[rarrrrrr]

Good guess. We were thinking of these: https://en.wikipedia.org/wiki/Flag_semaphore

Semaphoric patterns are used in the application as a more visually appealing means of peer key verification, device provisioning, etc. than say, QR codes.