repository_final batch 1/1

README.md

@@ -42,6 +42,15 @@ upstream) are not uploaded again: a sidecar's `materialized_files` lists each
 such native path with its sha256 and origin, and
 `scripts/phystwin_publish.py fetch` recreates it there and checks the digest.
 
+Native files smaller than 32 MiB may be stored inside uncompressed tar
+containers (`<package>/containers/payload_NNN_<sha256>.tar`). The sidecar's
+`native_files` still lists every native path with its sha256, its `containers`
+entry binds `containers/index.json`, and the index gives each file's container
+and byte offset; `fetch` restores the native layout and checks every digest.
+Packages planned or re-laid out from November 2026 leave review media (paths
+with a `review` folder) out of publication; their sidecar's
+`not_published_review_media` lists those paths, sizes and sha256.
+
 ### License scope of these packages
 
 Each row's license applies only to the files inside that package directory.