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-rw-r--r--tvix/docs/src/TODO.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/tvix/docs/src/TODO.md b/tvix/docs/src/TODO.md
index a3498ed9b17f..debad55a4f7c 100644
--- a/tvix/docs/src/TODO.md
+++ b/tvix/docs/src/TODO.md
@@ -89,6 +89,8 @@ correctness:
    This is somewhat the "spiritual counterpart" to our sequential ingestion
    code (`ConcurrentBlobUploader`, used by `ingest_nar`), which keeps
    "some amount of outgoing bytes" in memory.
+   This is somewhat blocked until the {Chunk/Blob}Service split is done, as then
+   prefetching would only be a matter of adding it into the one `BlobReader`.
 
 ### Error cleanup
  - Currently, all services use tvix_castore::Error, which only has two kinds