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> we have a ton of high profile examples

Such as?

Bun obviously: they swapped the engine under claude code from zig bun to rust bun and it worked fine.

pgrust, high profile rewrites all over the place.

When you have an oracle to check behavior against, it is really easy to build a robust testing machine with property tests against the original.

Uh, so you have two possible examples? They may be high profile but I’m not sure they’re successful, especially pgrust. In either case, two isn’t a ton.

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