I’ll research the B3FS-1050P manufacturer specifications, practical wiring, and alternative switches, then write a cited application guide with any unverifiable details clearly marked.

I verified the switch ratings and debounce specification; I’m resolving the pinout and replacement details before finishing the guide. Since you have comment-only access to this project, I’ll deliver it as a downloadable document.

Created b3fs-1050p-application-and-usage-guide with cited specifications, GPIO wiring, debounce guidance, PCB considerations, alternatives, and sourcing advice.

Key finding: the library entry has two logical terminals but a four-pad footprint; the physical contact mapping remains unverified and must be checked before fabrication. Other unresolved details are explicitly flagged in the guide.