Also, I assume Googleability is pretty much close to zero, you'd have to go to the primary sites (their forum?) to ask questions when stuck?
But as a simple example I accept that API calls to third party services is low hanging fruit so in terms of finding drivers for lower level protocols I've not had an issue that I'd class as a blocker. There are times where I've had to extend libraries or write a parser for this-and-that (e.g. PostGIS and Paseto, both of which were unused this time round) but I find I need to do this less and less as time goes on.
You do need to reach into the forums or gitter on rare occasions but I can count on one hand the number of times I've needed to, and it's typically because I was trying to do something unusual and quite low-level on the HTTP stack - as in something I've never had to do in a non-Crystal project, such as sending a specific packet. I've always found help there too and people are happy to engage.
Having performance improvements of 100x in real-world scenarios is just astonishing. Ruby is still my go-to, especially because debugging and console support are so much better. But everything that gives me time to think gets reimplemented.
["crystal lang" <question>] usually works for google.