[Ixiaus]

I don't really use anything of Hashicorp's except for Vagrant. That his been fairly revolutionary for all of the teams I've brought it to. That is, Vagrant + Ansible. A repository of Ansible configuration scripts that can easily be slurped down to provision a Vagrant image means much more portable development environments.

In the case of the company I'm currently at it's even more important because we have a firmware build system with a non-trivial configuration that would take days to replicate correctly (because of all the "missing pieces" required that the original developer forgot to write down when documenting the process post-setting it up).