This is a fun solitaire variant! It took a bit to figure out the best way to play but once I did I found myself enjoying it a lot.
My one complaint is a small thing about the rules of this version of solitaire. Part of what I think makes solitaire so compelling is the feeling of organizing something that was once chaotic, and one of the most satisfying feelings is when you complete a pile. This version of the rules, however, discourages you from actually finishing a pile until you're nearly done with the game, as once you make a pile you can no longer use it as a place to invert cards. It could be nice to have an "easy mode" where players can still use these completed piles as spaces to invert.
Otherwise, the game is solid! I like the retro computing aesthetic and the music is solid. This version of solitaire takes a decent amount of brain power and planning so it's not always a "chill out" sort of game, but when I'm in the mood for a quick brainteaser it certainly satisfies.