https://github.com/perl6/problem-solving/blob/master/solutions/language/Path-to-Raku.md#extensions
> On 23 Dec 2019, at 15:28, Parrot Raiser <1parr...@gmail.com> wrote: > > With the name change to Raku, has anyone considered a naming suffix > policy for modules? I don't have a problem with .pm6, and I don't > want to cause an outbreak of bikeshedding, but some might consider it > inconsistent. > > As an aside, I deplore the practice of identifying the language of a > directly executable program in the top level. It means that any change > to the language used means lying to the world, (which destroys the > point) or hunting down and changing every script or other caller to > reflect the new situation.