CodeTyphoon and U++ are 2 valid alternatives to LiteCode+wxWidgets.
You can cross-compile with all 3 of them, but most importantly, you will only see the advantages of using them in the long run (rather than Visual Studio)
It's hard to explain until you try yourself doing a big C# project, in the short term it seems so convenient and such a good idea (same as with Unity, or Embarcadero)
I tried to use it to make an invoice system:
wanted to convert plain-text CSV (description,amount,cost) --> to Markdown tables --> to PDF.
But I was unable to align the following 2nd table with taxes: cells are all over the place and it does whatever it wants. And there is no information online to be found about it.
(I eventually gave up long time ago and still to this day manually do them in LibreOffice Writer adding taxes with a calculator)
Except this, it's a really neat piece of FOSS software!
User maven29 already mentioned the NumWorks open source calculator, and the new OS fork, but here is a video to better appreciate some of the features:
Or "Geany IDE" on desktop environment (while waiting for lapce.dev to get better), I tend to stay away as much as possible from VS Codium, but everyone else seems to love it and already forgot about Atom, few seems to realise how Microsoft really is.
Maybe the plot twist is that you have to accept in your heart that "writing text on anything, is the real IDE", and transcend to writing on nano!
it asked me to update Xcode;
Xcode asked me to update the OS first;
and the OS asked me to buy a new 1300$€ MacBook hardware (with similar specs, the one I was using wasn't even that old/slow).
So to quote Rick and Morty i though: "That's just subscription with extra steps!" - and made a windows program and an Android app.