STreaming ARchives: stricter, verifiable, deterministic, highly compressible alternatives to CAR files for atproto repositories.
atproto
car
empty repo
+5
+5
star-lite/readme.md
+5
star-lite/readme.md
···
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But what we can do, is write serialized segments of the final CAR to disk temporarily as the entire MST is reconstructed, to stay within a strict memory budget. Streaming out the final stream-ordered CAR can use `copy_file_range` or equivalent to splice them in at the right places.
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+
#### empty repos
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+
a repo with zero keys is allowed: its commit object must use the magic CID `(TODO)`, which corresponds to the CID of a single empty atproto MST node - how atproto CARs represent empty repos.
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+
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+
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### algorithm
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```