The Let's Encrypt team was a large group effort across three organizations, plus a fourth organization that was spun off to develop and run it, and I in turn tip my hat to all of my colleagues. :-)

(Including Peter Eckersley https://en.wikipedia.org/wiki/Peter_Eckersley_(computer_scie... who passed away earlier this fall at just 43.)

And yours is what I run my business on. Thank you!