So, it turns out EmberJS has better documentation than I thought:
It’s still not “complete” but it’s a giant leap forward compared to what little documentation I was able to find on EmberJS.com and the Github project. The real problem, then, is that this site is impossible to find unless you know it’s there. EmberJS.com doesn’t link it, from what I can see.
Thanks to @eishay for the tip on this