There is no real need for GPU, since its not ideal to use GPU for storage. GPU transcoding is better suited for streaming, and it has lower quality than CPU transcoding.
Anyway, just enable it by setting the proper ffmpeg flags as stated in the readme and there you go.
Perfect timing for me! I was starting to plan out how I was going to transcode my media library and had decided to write a script to do it. So I’ll give this one a try!
I wrote a media conversion script a decade ago to do that for me, but upkeep was annoying when something like FileFlows makes it stupid easy to accomplish.
I still have that script somewhere.... I bet I'll cringe reading it lol. Still, it's a great learning experience.