My team recently open-sourced a container runtime project we've been working on. This puzzle is inspired by that project. Here's a link to the GitHub repo. It's hidden because the repo name is a spoiler for the puzzle:
https://github.com/awslabs/soci-snapshotter .
Also, sorry-not-sorry about 57-Across. Honestly, I didn't even need that in the grid. I just couldn't help myself.