[petr_tik]

1 Martin Thompson busting myths about hardware and explaining why it's important to know. Mechanical sympathy makes you better, because you know how the code actually runs on the machine and interacts with different layers of memory

https://www.youtube.com/watch?v=MC1EKLQ2Wmg

2 Matt Godbolt (the man behind GCC explorer) - Emulating a 6502 system in Javascript

Great talk about BBC micro and much more

https://www.youtube.com/watch?v=7WuRq-Wmw5o

3 Matt Adereth - Clojure/typing

History of keyboards and a custom keyboard written in Clojure

https://www.youtube.com/watch?v=uk3A41U0iO4

I like the 3 for their content and how each speaker presented the background and their project/hack/ideas.

Highly recommend

[voltagex_]

Your second link reminded me of https://www.youtube.com/watch?v=nLv_INgaLq8 (which definitely builds on some of Matt's work).

https://www.youtube.com/watch?v=zBkNBP00wJE - C++17 for the Commodore 64.

Probable language warnings for my other suggestions:

* Rescuing Prince of Persia from the Sands of Time https://www.youtube.com/watch?v=FnEWBtCnFs8 (was this talk ever given elsewhere?)

* And You Shall Know Me By My Trail of Documentation - https://www.youtube.com/watch?v=fEgHdHdUDaA

* The History and Evolution of Computer Viruses - https://www.youtube.com/watch?v=s2g9lgYrYJM