I'm a solo developer, and I just finished HideNStick Notes, a Windows sticky-notes widget built with Tauri 2 + React. Your notes live in a slim rail hidden in the screen edge: bump the edge twice and they slide out, move away and they tuck back in.
Tauri is a framework for building tiny, blazingly fast binaries for all major desktop platforms. Developers can integrate any front-end framework that compiles to HTML, JS and CSS for building their user interface.