Works based on L-SMASH project; This repo focuses on the common portion and the VapourSynth plugin. AviSynth users please use https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works. ffmpeg 5.0+ please use ffmpeg-4.5 branch.
Why do you think that https://github.com/HomeOfVapourSynthEvolution/VapourSynth-RIFE-ncnn-Vulkan is a good alternative to L-SMASH-Works