blackboardsh/electrobun ? reverse-engineered prompt

I want to build a toolkit for making fast, lightweight, cross-platform desktop apps. Think of it as a modern alternative to Electron, but without the bloat. The apps people build with this should be super tiny, maybe around 12MB, and launch really quickly.

The whole development process should be based on TypeScript, for both the app's main process and its UI. I want developers to have an all-in-one solution that handles building, shipping, and even updating the apps they create. A really important feature is an intelligent update system. Instead of making users download the whole app for a new version, it should be able to send just a tiny patch with only the changes, making updates super small and fast. Let's use Bun under the hood for performance.