Firstly, install Haxe. Then open up your Terminal and run:
haxelib install lime
haxelib install openfl
haxelib install flixel
haxelib install flixel-ui
haxelib install flixel-addons
Then
haxelib set lime 7.7.0
and
haxelib run lime setup
Finally, run this command to compile.
lime test windows/mac/linux -release
Note for Linux: You'll need to apt-get g++-multilib and gcc-multilib.
If you are planning to build for Windows, you also need to install Visual Studio 2019. While installing it, don't click on any of the options to install workloads. Instead, go to the individual components tab and choose the following:
- MSVC v142 - VS 2019 C++ x64/x86 build tools
- Windows SDK (10.0.17763.0)
This will install about 4 GB of crap, but is necessary to build for Windows.