Re: [RFC/PATCH v3 00/16] Add initial experimental external ODB support

Christian Couder [off-list ref] writes:

For now there should be one odb ref per blob. Each ref name should be
refs/odbs/<odbname>/<sha1> where <sha1> is the sha1 of the blob stored
in the external odb named <odbname>.

These odb refs should all point to a blob that should be stored in the
Git repository and contain information about the blob stored in the
external odb. This information can be specific to the external odb.
The repos can then share this information using commands like:

`git fetch origin "refs/odbs/<odbname>/*:refs/odbs/<odbname>/*"`

Unless this is designed to serve only a handful of blobs, I cannot
see how this design would scale successfully.  I notice you wrote
"For now" at the beginning, but what is the envisioned way this will
evolve in the future?