https://www.techradar.com/news/even-facebook-is-designing-its-own-processors-says-a-new-report

Facebook is reportedly designing its very own processor hardware so as to reduce reliance on partners like Intel and Qualcomm in its device efforts. The news comes via anonymous sources speaking to Bloomberg and apparent job listings.

The outlet reports that Facebook is currently in the early stages of building a team to design silicon semiconductors, an “end-to-end SoC/ASIC, firmware and driver development organization.” Indeed that very job posting is still live on Facebook's online job board at the time of writing.