POCO VS Avalonia

You can also look into Poco https://pocoproject.org/

I can't say enough good stuff about POCO for this type of work - when I first got my teams using it we used to joke that POCO was what Boost wants to be when it grows up. And nlohmann/json - cracking library for working with JSON in C++.

We use https://github.com/pocoproject/poco in most projects, very easy to set up a http listener

Did someone used Poco's Net Library to create a Rest Api? Poco Project

But CLion is so slow. Tested with Poco C++ standard build (https://pocoproject.org/). Moving around with Go To Definition takes sometimes up to 20 seconds if file is first touched. Using 'back' and 'forward' delays for 1-2 seconds.

Yes, you need NetSSL - take a look at find_package(Poco REQUIRED COMPONENTS ... NetSSL) requires an aditional find_package(OpenSSL) since poco-10.

poco (portable components) https://pocoproject.org/

Many of the necessary fixes do end up getting pushed upstream, though, thinking especially of stuff like converting CMake projects to use the GNUInstallDirs standard, so there is a benefit to the strictness work that extends beyond even just the Nix community itself.

Of course, sometimes those kinds of changes just never get merged, for a variety of well-understood open-sourcey reasons, eg: https://github.com/pocoproject/poco/pull/3105

You might also want to look at AvaloniaUI[0] for a cross platform .NET GUI library. It is similar to WPF but much nicer to work with.

[0] https://github.com/AvaloniaUI/Avalonia

Production user here. There's no money gotchas. They're above reproach. In fact, I've received considerable free support from their devs on GitHub Issues [1].

The Avalonia business model is based on selling XPF, which runs WPF (Windows-only) apps on other platforms. That's very interesting to big corps with existing codebases.

See my comment [2]

[1] https://github.com/AvaloniaUI/Avalonia/issues

[2] https://news.ycombinator.com/item?id=39246988#39249128

Yes, but the portable GUI frameworks by Microsoft themselves are generally not very good, and they tend to be abandoned after a couple of years.

Avalonia is developed outside of the Microsoft corporate madness and seems to be slowly becoming the defacto cross-platform framework because it is expected to last a bit longer than a manager's attention span: https://avaloniaui.net/

Not my comment, but relevant here "The problem with compiling Skia to WASM is you'll lose any benefits of hardware graphics acceleration on the device."

(From https://github.com/AvaloniaUI/Avalonia/discussions/6831#disc... )

It's a bit of a hit and miss as of today. CLI, back-end and natively compiled libraries (think dll/so/dylib or even .lib/.a - you can statically link NAOT binaries into other "unmanaged" code) work best, GUI - requires more work.

Avalonia[0] and MAUI[1] have known working templates with it, but YMMV.

[0] https://github.com/lixinyang123/AvaloniaAOT / https://github.com/AvaloniaUI/Avalonia/ / honorable mention https://github.com/VincentH-Net/CSharpForMarkup

[1] https://github.com/dotnet/maui (try out with just true in csproj - it is known to work e.g. on iOS)

For desktop, Avalonia, hands down.

https://avaloniaui.net/

Open source, powered by Skia, backed by JetBrains, and quite battle-tested at this point for small to medium-sized apps. In theory perfectly capable for enterprise as well, since it's basically a spiritual successor to WPF, which has been an industry standard for about 15 years.

They're diving into mobile and WASM well, but that's more of a recent effort and I haven't tested that yet.