I guess you could argue that the Raku Programming Language also has its "mini" version, to build the actual language on. In Raku's case, it's called NQP (which

I guess you could argue that the Raku Programming Language also has its "mini" version, to build the actual language on. In Raku's case, it's called NQP (which used to stand for "Not Quite Perl", but now is just considered to be "NQP"). Programming in NQP is troublesome, but it is fast and it is self-hosting.