From: Vitaly Kuznetsov on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2917#note_1843...
(I apologize if I've missed some parts of the discussion) Allowing to install
multiple `kernel-uki-virt` packages in parallel is a must as that's how we
upgrade kernels today. With the introduction of `kernel-uki-virt-addons` this
means several versions of `kernel-uki-virt-addons` should co-exist normally.
It may happen that addons change between versions so files should not
intersect (even if RPM allows that, not sure).
My (probably silly) suggestion would be to use directory similar to what's
going to be on the ESP and somewhat similar to /usr/lib/modules. E.g.,
```
/usr/lib/linux/extra.d/6.9.0-0.rc0.a4145ce1e7bc.11.test.fc41.x86_64/fips-
virt.fedora.x86_64.addon.efi
```
In this scheme, third party addons can live in `/usr/lib/linux/extra.d/`
without any sub-dir, e.g.
```
/usr/lib/linux/extra.d/third-party-addon-mydistro.x86_64.addon.efi
```