They mention doing this a decade ago. They were probably using utilities to manage downloads from the ruby application archive (which would have still been around at the time) and automate running `setup.rb`

Yes, all of the above. Sorry for the unclear language.

At the time, I recall it being very distracting when the team was focused on shipping well-tested code. We had a world class devops guy, but we all ran into these build issues frequently enough that it was a regular complaint at retrospectives no matter what tooling we were using at the time or who was using it. It was not long after this that I read Daniel Greenfeld's book on Django that introduced the notion of "vanilla django" and that resonated with me, precisely because our rails tooling was decidedly not vanilla. My take now is that rails can have the same problems with regard to being "off the rails" WRT the aforementioned DSL's and such. I don't think the root cause is ruby as much as there are pockets of rails that are far from what DHH describes.