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This is very cool! This technology will open the door to preview environments in CI/CD.

If you also have a versioned filesystem you can efficiently create lots of snapshots that store VM images differentially you can introduce a branchable/versioned environments for the whole backend and tie it to the repo commit hash.

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Exactly! We're looking at the second use case, to have a VM running tied to the git history. Right now we do this on a branch level, so you could say "connect to branch X on microservice Y" from another microservice, and you can test APIs quickly. There's a lot of new things this enables!

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