@silverdr OK sure, here’s a non manual loop version:
Stream.repeatedly(&generate_name/0) |> Stream.take(16) |> Enum.find(¬_taken?/1)
This will return the first generated name that isn’t taken, OR quit after 16 tries. It will only generate as many names as are needed. Enumerable works great here too. Of course, you can always use manual recursion.
