[bug#39547] Addition of %content-addressed-mirrors to sources.json (SWH)?

[zimoun]

Hi,

Some upstream sources could disappear between the moment when the
package enters in Guix and the moment when SWH ingests it. (As an edge
case, let consider the recent harfbuzz one.)

Now the format 'sources.json' should accept an array. Does it make
sense to put in this array the content addressed mirrors
(ci.guix.gnu.org and tarball.nixos.org)?

What do you think?


Cheers,
simon