fake up an AUR RPC responder?

[Greg Minshall]

hi.  i'm doing some coding around AUR, and appear to have gone over the
daily limit (apologies for which).

i'm wondering if anyone knows of (or has) any simple code that would
use, e.g., `packages-meta-ext-v1.json.gz`, the AUR metadata pointed at
here:
----
https://lists.archlinux.org/pipermail/aur-general/2021-November/036659.html
----
or any other information, to
present a responder to the AUR RPC protocol?

to be clear: i don't want to mirror aur.archlinux.org, just the
search/info from as described in
https://wiki.archlinux.org/title/Aurweb_RPC_interface so i can bang on
it locally without consuming resources on aur.archlinux.org.

cheers, Greg