Building a Transparent Drag-and-Drop Shelf for Windows with Tauri: The Engineering War Stories (opens in new tab)

I recently shipped SnapShelf, a transparent always-on-top "staging shelf" for Windows; you fling files at the right edge of your screen, it slides in, you drop stuff on it, and later you drag that stuff back out into whatever app needs it. Think of it as a temporary holding tray for files, images, text, and URLs while you move things around your desktop. It's built with Tauri v2 (Rust backend + React/TS frontend). On paper it's a small app. In practice, almost every "small" feature collided w...