uNESsential 0.30 binaries: DOS | Linux | Mac OS | Windows
The source code is on codeberg. It will work in QuickBasic 4.5 but QB64 is recommended.
And just for nostalgia, or in case you're curious, the previous version, 0.20, is still available. It's DOS only but you can run it in DOSBox or you can grab the sources and run them in QB64. You'll need the font.dat file from the binaries archive to run it from source code.
uNESsential 0.20: DOS | Source
uNESsential - Copyright Johannes Holmberg 1998 - 2022.
E-mail me with any questions/comments/suggestions you might have.