This reminds me of https://checkvist.com, which I hope would be used more. It's actually a great replacement for Trello or any other kind of board for smaller projects.
I've been a paying user of Checkvist for years. It's a a pleasing rarity in the contemporary web software world - a simple useful and reliable keyboard-driven tool with little hype and no world-conquering aspirations. It improves year on year, but at no great velocity. It seems to be entirely the property of a team of 2 who are personally responsive at their user forum (https://discuss.checkvist.com/). I supposed one could call it 'artisanal', but it was that before the term came into regrettable fashion.
As a Checkvist user, too, I'm really happy whenever I see it mentioned. It deserves a lot of credit for all the things it does right, keyboard shortcuts especially.
Yes me too. The developers have done a great job of keeping it focused. It being a side project probably makes that easier (no wolf at the door pestering them to make it more profitable).
FWIW if you're interested I have a little commandline capture tool for pinging items onto the top of a default Checvkvist list: https://github.com/crispinb/cvcap. I find it useful when I'm in the terminal and think of something I need to note. It's unpolished but functional.
I also tried using similar tools - Checkvist, Workflowy, Dynalist, Trello...
They "stop working for me" after a few days/weeks - probably when I start needing notes on tasks, and tasks on notes...
That's a good share. OPs project and video are very interesting to me, although the "Introduction to Checkvist" explanation page serving as all in one demo/documentation/trial was for me a much more efficient way to size up the product.