David B. posted the following over on StarDot forum:
Z80: the last secrets
davidb wrote: ↑Tue Feb 15, 2022 4:49 pm
I saw that the slides and video for the Z80: the last secrets presentation at FOSDEM 2022 have been made available. I don't know if others are already aware of it, though Tautology's reverse engineering effort is mentioned in the slides.
I’ve put this here, as the linked to blog discusses running code on a ZX Spectrum and the ZX Vega.
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.