browser VS imgui-go

You will end up with a single binary that works across all operating systems. Your Go program uses a web server internally to communicate with your web app and to serve static files. To make it really easy for your users use something like https://github.com/pkg/browser to start the default browser with the correct URL when the program starts. It even works offline because all required files come with the go executable.

FYI, they're using Dear ImGui. Either https://github.com/AllenDang/giu or https://github.com/inkyblackness/imgui-go

As the maintainer of https://github.com/inkyblackness/imgui-go , I like this a lot.

Why are you people keep recommending fyne.io??? Don't waste your time, just download it's sample demo (1. go get fyne.io/fyne/v2/cmd/fyne_demo/ ; 2. fyne_demo) try it and see for yourself "how good it is" (it's not). Then download Dear ImGui (golangs bindings here: https://github.com/inkyblackness/imgui-go) and compare the quality... it's not even funny how much better it is. So it's just baffling to see at every golang GUI thread people keep recommending Fyne, when alternatives like ImGui exist, which are just astronomically better. Those who recommend, do you even use it yourself or just keep repeating what others suggested somewhere else...?

That said, I have used Dear ImGui with before with Go (https://github.com/inkyblackness/imgui-go), it comes with several backends and one of them ("glfw_opengl3") actually works. I don't know if it is any different in Rust.