Another modern Forth that has a cross-compiler to make Windows, Linux, Mac, Android, Raspberry Pi, and iPhone executables is 8th.<p><a href="https://8th-dev.com/" rel="nofollow">https://8th-dev.com/</a><p>It comes bundled with the C++ based JUCE GUI framework, SQLite, ODBC, encrypted binaries, JSON support, and a lot of support for other things that you typically don't see in a tool written by one person. The more expensive licenses come with AWS and automotive Linux support, so nifty for this area.<p>Sadly, it is closed source and commercial (although you can get source with an enterprise license I think). On the plus side, it is really cheap (there is a free version too I believe) and the main developer seems to add user requested features and fix bug reports very quickly.<p>I obviously wouldn't write a production system in it (although I'm sure you could), but I wouldn't mind having a fun REPL based language to write simple and easy to distribute cross-platform desktop apps.