I used to be able to install Kali from image list. I know some changes happen to repositories with Ubuntu. I have not been paying attention. Anyway, let me know what I am missing.
stgraber@dakara:~$ incus launch images:kali kali
Launching kali
stgraber@dakara:~$ incus list kali
+------+---------+-----------------------+-------------------------------------------+-----------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+------+---------+-----------------------+-------------------------------------------+-----------+-----------+
| kali | RUNNING | 172.17.250.107 (eth0) | 2602:fc62:c:250:216:3eff:fe1e:f965 (eth0) | CONTAINER | 0 |
+------+---------+-----------------------+-------------------------------------------+-----------+-----------+
stgraber@dakara:~$