vhs-decode/ld-decode/cvbs-decode/hifi-decode has a combined docker hub distro.

Docker is a free (for personal and small business use) deployment system that allows applications and operating systems to run self contained on a host system this can be Windows/MacOS/Linux or server platforms like Unraid using a very low latency virtualization.

Docker Hub Page

docker pull oyvindln/vhs-decode

You will see "No Matching Applications Found"

Off to the right side "Click Here To Get More Results From DockerHub"

Currently this does not work inside Unraid but is available.