A couple of links on alternative OSs:

1991 was just before my wife and I met...

DevOps is in serious trouble. The movement is fragmented and weakly defined, and is being usurped by those who care more about short-term opportunities than the long-term viability of DevOps.

Or is DevOps just the current term to describe best practices in an industry which frequently changes its best practices?

The DevOps Identity Crisis