Missing dependency requirements

[lkiesow]

Seems like the Debian packages need wget but it is not specified as a requirement:
That means, the installation will fail if it is missing:

# apt install audiobookshelf
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following NEW packages will be installed:
  audiobookshelf
0 upgraded, 1 newly installed, 0 to remove and 5 not upgraded.
Need to get 16.0 MB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 https://advplyr.github.io/audiobookshelf-ppa ./ audiobookshelf 2.2.8 [16.0 MB]
Fetched 16.0 MB in 1s (12.8 MB/s)         
debconf: delaying package configuration, since apt-utils is not installed
(Reading database ... 5280 files and directories currently installed.)
Preparing to unpack .../audiobookshelf_2.2.8_amd64.deb ...
Existing config found.
METADATA_PATH=/usr/share/audiobookshelf/metadata
CONFIG_PATH=/usr/share/audiobookshelf/config
FFMPEG_PATH=/usr/lib/audiobookshelf-ffmpeg/ffmpeg
FFPROBE_PATH=/usr/lib/audiobookshelf-ffmpeg/ffprobe
TONE_PATH=/usr/lib/audiobookshelf-ffmpeg/tone
PORT=13378
HOST=0.0.0.0
Starting FFMPEG Install
/var/lib/dpkg/tmp.ci/preinst: line 62: wget: command not found
dpkg: error processing archive /var/cache/apt/archives/audiobookshelf_2.2.8_amd64.deb (--unpack):
 new audiobookshelf package pre-installation script subprocess returned error exit status 127
Errors were encountered while processing:
 /var/cache/apt/archives/audiobookshelf_2.2.8_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

[lkiesow]

There seem to be more requirement specifications missing. Seems like xz-utils is also required but not required:

2022-12-09 19:19:51 (1.71 MB/s) - 'ffmpeg-git-amd64-static.tar.xz' saved [40997632/40997632]

tar (child): xz: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
dpkg: error processing archive /var/cache/apt/archives/audiobookshelf_2.2.8_amd64.deb (--unpack):
 new audiobookshelf package pre-installation script subprocess returned error exit status 2
Errors were encountered while processing:
 /var/cache/apt/archives/audiobookshelf_2.2.8_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)