Although I love using Raku, the fact that it is still a relatively young language means that there is a fair amount that is lacking when it comes to tooling, etc. Until recently, this included a way to calculate code coverage: how much of the code in a library is extercised (=covered) by that library's test suite.
Now, truth be told, this feature has been available for some time in the Comma IDE. But this (together with other arguably essential developer tools like profiling, etc) is only available in the "Complete" edition, which requires a paid subscription.
Still, I knew that the Raku compiler kept track of covered lines, so I always felt like this should be doable. It only needed someone to actually do it.
So, consider my surprise when, while recently browsing raku.land, I came across App::RaCoCo, which claims to be 'a Raku Code Coverage tool'. Sweet!