Why I Stopped Building Apps and Started Building an Engine in Flutter

How I Built One Flutter Codebase That Ships Infinite Learning Apps As an indie developer, your biggest bottleneck isn’t skill — it’s time. And maintaining multiple apps will absolutely destroy it. A few months ago, I started building PyMaster , a gamified app to help people learn Python on their phones. But the moment I shipped the first version, I didn’t feel done. I wanted to teach SQL next. Then JavaScript. Maybe even Rust. That’s when I realized I had a problem. The Copy-Paste Trap The obvious move was to duplicate the PyMaster codebase, swap the logos, change the content, and publish a new app. Simple, right? I actually tried it. I cloned the repo, renamed a few things, and within ten minutes I already hated what I was looking at. Three separate codebases Three separate sets of bugs Three separate times I’d have to push a fix every time I touched the streak logic As a solo founder, that’s not a roadmap — that’s a slow death. So I scrapped it and spent a weekend thinking differentl