For me, Andreas Kling and his work on the SerenityOS and Ladybird browser is enjoyable to watch. I recommend watching the JIT-series, Jakt-series (his and JT's programming language they created). Actually all the series on the channel are great 😄 Also JT's videos on Nushell and his series on the NES-emulator written with Jakt are good.
https://www.youtube.com/@awesomekling
https://www.youtube.com/@SystemsWithJT
Kiinnostaisi tietää mikä haavoittuvuus oli kyseessä. Mahtoiko olla XZ-backdoor?