Took a course on programming the brand new ZX81 back in 1982. Bought one, fell in love with it. Just 15 years old at the time. Wrote lots of programs, stored on cassette using my Grundig cassette recorder. Hardly slept. Just kept learning. Retired early in 2020 after a fulfilling career in IT. Zx81 still is one of my favourite machines!
The color count is so low it seems like it would be hard to see in this day and age, doesn't it? Isn't this effectively the pixel art that's popular right now?
He also has a BlueSky account, where he posts lots of good links to new indie games: https://bsky.app/profile/robmanuel.b3ta.com