Running Lisp in Production by Vsevolod Dyomkin and Kevin McIntire.
From the post:
At Grammarly, the foundation of our business, our core grammar engine, is written in Common Lisp. It currently processes more than a thousand sentences per second, is horizontally scalable, and has reliably served in production for almost 3 years.
We noticed that there are very few, if any, accounts of how to deploy Lisp software to modern cloud infrastructure, so we thought that it would be a good idea to share our experience. The Lisp runtime and programming environment provides several unique, albeit obscure, capabilities to support production systems (for the impatient, they are described in the final chapter).
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An inspirational story about Lisp, along with tips on features you are unlikely to find elsewhere. A good read and worth the time.
Since the OPM is still running COBOL, I am sure one of your favorite agencies is still crunching Lisp. You might need to get them to upgrade.