If you use Ansible at any larger amount, then you're doing a disservice to yourself if you're not using Mitogen[1][2]. The amount of waiting it has spared me is innumerable at this point.
You are very welcome! Please spread the word about this magical bit of software to anyone else using Ansible. Together we can make iterating on Ansible configurations great again!
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[1]: https://scribe.rip/@einarum/speed-up-ansible-with-mitogen-b3...
[2]: https://mitogen.networkgenomics.com/ansible_detailed.html