Hi HN. I can't stop trying new ways to write my websites, and the web world is ever evolving. For both reasons, I stopped trying to write a build tool for developing front-ends, and wrote some helpers for Node.js that ideally would be part of any front-end build tool. They're high-enough level that you could use them directly, and low-enough level that you could build a framework on top of them (Vite could refactor itself to use them and remove a lot of its own code).
