I'm interested in building an desktop app for all platforms. I would like to move away from building apps in the browser but I'm only familiar with JavaScript and web-technologies.Since Electron is frowned upon, what language or platform would be suitable?Requirements:
- Mature language
- Mature ecosystem
- Performance better than Electron or a fast websiteA major plus:
- Big community of quality tutorials 
- Big community of packages
- It's not too hard to learn for someone who knows JavaScript-----I've looked at the Rust eco-system, but most GUI libraries are not there yet. Swift UI looks great to work with, but would only target 1 platform. React Native or Flutter for desktop is in alfa/beta state.