Using mjpg-streamer on Debian Bookworm

Users using recent version of Debian might have noticed, that the tutorial for setting up webcams for Linux doesn't work anymore. This is because mjpg-streamer requires "libjpeg8-dev" which is not available anymore, and its successor libjpeg9-dev is incompatible with it. Furthermore, the repository for mjpg-streamer seems to be abandoned, so fix is unlikely to come. For future developments something like ustreamer might be interesting, but for now I found a workaround, requiring minimal effort. (I also managed to get it working rudimentarily with ustreamer, however this skips the proper setup, and I won't guarantee that it will work for you.)

At first we have to install snap, the TL;DR is:

sudo apt update
sudo apt install snapd
sudo snap install core

After this is done, we can install mjpg-streamer and v4l2camera via snap:
sudo snap install mjpg-streamer
sudo snap install v4l2camera

In order for mjpg-streamer to be able to make calls to the cameras, we need to connect it to v4l2camera:
sudo snap connect mjpg-streamer:camera

And we are almost done! Because we installed mjpg-streamer via snap instead of apt, the configuration provided by Repetier in step 6, and configured in step 7 needs some additional modifications.

Per default these are: