You can bring you own .ipsw and .app files to use with anka create. This is an alternative to specifying the version from --list. It supports three different methods:

1. The specific macOS version from --list.
ARM USERS: At the moment Apple only provides a public endpoint to list the latest macOS version. anka create --list will therefore only show a single version. We are working to get them to publically list all ipsw. In the meantime, Intel Anka does show all archived macOS versions for .app.
bash$ anka create -l
+---------------+---------+----------------------+
| version       | build   | post_date            |
+---------------+---------+----------------------+
| 11.7.2        | 20G1020 | Dec 13 13:14:48 2022 |
+---------------+---------+----------------------+
| 12.6.2        | 21G320  | Dec 13 13:13:39 2022 |
+---------------+---------+----------------------+
| 13.1 (latest) | 22C65   | Dec 13 13:08:36 2022 |
+---------------+---------+----------------------+
| 13.0.1        | 22A400  | Nov 9 13:02:34 2022  |
. . .

bash$ anka create 11.7.2 11.7.2
75% [|||||||||||||||||||||||||||||||||||||||||||||               ] 16:15 ETA
2. The location/path to the ipsw on the host.
bash$ anka create --cpu-count 5 --disk-size 100G 12.5.1 /Applications/macos-12.5.1.app
. . .
3. The URL to download the ipsw from.
bash$ anka create --cpu-count 5 --disk-size 100G 12.5.1 https://myCompanyIntranet/UniversalMac_13.1_22C65_Restore.ipsw
. . .