HeadsUp: Might drop linux support,...

[FleXsor]

For debian based systems https://github.com/Selur/hybrid-vapoursynth-addon should allow to build and install Vapoursynth and plugins.
Alternatively you can install Vapoursynth and plugins manually and use misc.ini ([INFO] *hidden* Hybrid options,...) to tell Hybrid that Vapoursynth should be enabled.

Cu Selur

Ps.: https://forum.doom9.org/showthread.php?t=182032 lists the currently for Avisynth+ on Linux available filters (aside from the functions that directly come with Avisynth).

1. hybrid-vapoursynth-addon Adding Vapoursynth and plugins to Hybrid
   
   
2. extract the folder to a temporary folder
   
   
3. make the build-vapoursynth.sh script executable 
   chmod +x build-vapoursynth.sh
   
4.  and run it.
   
5. When it's finished add:
   export LD_LIBRARY_PATH=/usr/local/libexport PYTHONPATH=~/opt/vapoursynth/lib/python3.6/site-packages

[*]to your 

~/.profile

[*]- and 

~/.bashrc

[*] -file, close the terminal and open a new terminal. ( Note: depending on your Python version you need to adjust pyhton3.6 accordingly and if you changed the default paths inside the config.txt youe need to adjust them here too) 5. Calling 

vspipe --version

[*] should output something like: 

VapourSynth Video Processing Library Copyright (c) 2012-2020 Fredrik Mellbin Core R49 API R3.6 Options: -

[*] 6. reboot your system. (

vspipe --version

[*] should now work without having to enter the export calls) 7. make the build-plugins.sh executable 

chmod +x build-plugins.sh

[*] and run it (this will take quite a while).
Now Hybrid will be able to use Vapoursynth.

idk how to do this