@raven667 @thomasfuchs they're not equally available.

Mozilla (appears to?) put virtually zero effort in actually making Gecko or Spidermonkey usable outside of Firefox.

Ok, Spidermonkey has its own website now, very cool. Does it have actual docs in a readable format? Lol no.

Now Servo definitely is showing hope. Probably (why and/or because) it's no longer a Mozilla project.