I have watched many episodes on Handmade Hero, and seen many people asking about whether there would be a Level Editor on Handmade Hero. The recurring answer is 'no, because Handmade Hero world is procedurally generated'.
I personally do not like playing games where the world is procedurally generated; I prefer to play games where each challenge and each part of it is handcrafted. Therefore, I'm writing my own Level Editor using what I have learned by watching Handmade Hero.
Unfortunately, many questions arise which are unanswered on your show. So here goes my plea; what would it take for you to consider making a couple of special episodes of Handmade Hero where you code a simple (or maybe complex) level editor?