tauri-vs-electron VS sycamore-mac

Main advantage is that 400MB apps become more like 10MB. RAM and CPU usage are somewhat improved (webview is usually at least a bit more efficient than chromium), and startup times are a lot faster. Some of this is achieved by using compiled code to do heavy lifting, rather than electron’s JS-based versions. Full comparison here.

Not inherently, but practically yes – currently. There are attempts to use it for desktop ui https://github.com/Submersible/sycamore-mac but in general nothing prevents you from using it as you like and implement a backend you need.

Sycamore. And before people start complaining that it's just a webview or a browser in disguise, I would like to add that Sycamore was built from the start to allow multiple render backends. Right now, there are only backends for DOM and SSR (Server Side Rendering) but it should be pretty easy to extend it to native UI frameworks. In fact, there is a POC here of Sycamore running on macOS: https://github.com/Submersible/sycamore-mac although it is right now far from usable.

I used this a bit, it was really great. Writing a Rust backend & exposing it to TypeScript was really slick!

There was one issue I ran into that made me think about jumping to Electron mid project, but I can't remember what it was now, but I think it was something like making my app bleed the entire MacOS window while still being moveable.

The other downside is you're going to be tempted to go down the rabbit hole and do everything in Rust. [1]

[1] https://github.com/Submersible/sycamore-mac