The Bitcoin Optec Group

I contribute to Bitcoin Optec group. We focus on trying to facilitate communication between the open source community and Bitcoin businesses. I don't know how many of us have written BIPs, but definitely most of us have either written to the mailing lists about research proposals or have done Bitcoin Core Pull requests. Our first focus was on efficient use of shared resources like block space. we held a taproot workshop, I think also 2019, one on RBF.