The build script https://github.com/TryItOnline/tiosetup-binaries/blob/master/languages/perl6-niecza has been tested with Mono 6 and build Mono 5 from source, as Niecza doesn't work with Mono 6.
The build script https://github.com/TryItOnline/tiosetup-binaries/blob/master/languages/perl6-niecza has been tested with Mono 6 and build Mono 5 from source, as Niecza doesn't work with Mono 6.