sycamore-mac VS Slint

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

As an anecdote, the three top contributors to sixtyfps are ex-Qt people. I think it is not anecdotal that there is at least some degree of overlap and competition between Rust and C++, and that this is a market that surely The Qt Company is watching.

SixtyFPS (https://sixtyfps.io/) is in progress for Rust, but it is still early days. It also does not technically use a native toolkit (it uses Qt), but I believe that might be on roadmap. For traditional GUI apps, I think the lack of a table or tree widget is the most limiting for the time being. They have stated they intend to remedy that.

The most promising GUI hasn't been posted here, SixtyFPS. It's in it's early stages and not FOSS, but it's built by some ex-QT cats and has a lot of potential.

People have been recommending https://sixtyfps.io/ to me.

There is already a project to make a Qt like GUI toolkit in Rust: https://sixtyfps.io/ It is really similar to Qt https://sixtyfps.io/releases/0.1.5/docs/rust/sixtyfps/index.html

People are doing that too. https://sixtyfps.io/ is basically a Qt clone in Rust, actually developed by previous Qt developers.

spdlog, a pretty useful and more and more commonly used logging library for C++.\ SixtyFPS, an emerging GUI library for Rust, but you can use it in multiple languages. It uses OpenGL or Qt currently as backend (well, it's a new library and they wanted two from the get-go to make sure their abstractions are done right/well enough). They started a company this year for it too.

Just so some are not aware, there's a new project called sixtyfps by some people who were in the Qt world for long. I didn't take a deep dive into it but it looks promising.