But but but some guy is on the same IRC channel with the author of that project, and he said maybe it's time to think seriously about productizing the project. After all, all of the readme file of the project is written in the enterprise-class English language which has proven its worth over centuries of use for serious business.
You too can join the fun, if you're not a nattering nabob of negativity, if you join the #whatever IRC channel. As raiph himself predicted over four years ago, it's right on schedule to start getting actual users who are interested in contributing to this fun and important project which some other guy has called "vital to the healthy and continued future of BOTH Perl 5 and Perl 6!".
Even better, the author if this project is currently exploring ways to make it more interesting than the calculator app included with your phone.
As you can see, it is both practical and fun, and it is further more inevitable that this time, a Perl 6 project will deliver something useful.