Julia Evansthis is awesome: See this page fetch itself, byte by byte, over TLS https://subtls.pages.dev/
I've been (very very slowly) working on a guide to writing your own TLS implementation from scratch and this is motivating me to make some progress on it
Rory McCune@b0rk Sounds cool! Just in case you've not seen it yet, Bear SSL https://bearssl.org/ might be an interesting reference as it's a from scratch implementation.