Install Hybrid on Ubuntu 18.04 VNC

[Selur]

But now I am unable to configure AviSynth and VapourSynth on my Linux server.

Hybrid itself doesn't install Vapoursynth (or Avisynth).
I wrote scripts to compile and install Vapoursynth and the plugins Hybrid supports nativly.
see: https://github.com/Selur/hybrid-vapoursynth-addon
I also shared all the Vapoursynth scripts Hybrid uses https://github.com/Selur/VapoursynthScriptsInHybrid.

There is no installer that does this since there is no once who has the time and motivation to set it up and main it.
djcj did offer a installer and repository a while back, but didn't have the time to adjust and maintain.

Hybrid can use Avisynth in case it's installed through wine, but I haven't tried for ages for Avisynth to work under wine and last time I did it was a real pain to setup.
Hybrid does not support the new native Avisynth+ for Linux (https://forum.doom9.org/showthread.php?p=1902843), since nearly no Avisnth filters work on Linux.

Cu Selur