So this one took a weird path. I started it as an anniversary gift. Pulled together years of photos of me and my wife — us, the kids, holidays, even the dog — and turned them into one big mosaic image. Posted it to my WhatsApp status and a bunch of people were like "wait I want one of these." Cool, I thought, there's a product here. Built it out properly. Subscriptions, everything rendering in the browser canvas so it was fast. Launched it. Crickets. Not one signup. Made it fre...