If you aren't subscribed to our YouTube channel and missed the first announcement, you might not know about Dennis Korpel's DLang Contributor Tutorials.
I've just published Part 4, "Runnning the Test Suite". You can watch that now, but if you haven't seen the first three parts, I suggest you watch the whole playlist first.
We had planned to keep two a two-week publishing schedule, but Part 4 was unfortunately delayed. We should be able to get back on track now. So stay tuned for Part 5.