Evan Miller felt Rakudo/MoarVM fit that niche. [1]
P6 automatically converts an ordinary P6 function call into a documented cli program. [2]
Cro, a distributed system framework, is a P6 showcase. [3]
[1] https://www.evanmiller.org/why-im-learning-perl-6.html
[2] https://www.youtube.com/watch?v=D16wa-gnFwE
[3] https://cro.services/