Erik Oostveen’s project has been making some waves this week with this one. Eurorack visuals seem to be making their way gradually from analog-only to digital you can tweak and modulate, much as audio modules have diversified. And – chip shortage, be damned! – you can do some amazing stuff with really inexpensive hardware. (Looking for this, I found a Reddit from ten years ago with someone grumbling that you’d only get cheap visual output with a RasPi core. What a difference a decade makes.)
http://www.erikoostveen.co.uk/Slimshader.html