There's also this which includes a frontend: https://github.com/Athlon1600/youtube-downloader https://github.com/Athlon1600/youtube-downloader I'm unaffiliate

There's also this which includes a frontend: https://github.com/Athlon1600/youtube-downloader https://github.com/Athlon1600/youtube-downloader I'm unaffiliated but I like to follow this particular project when I want to know if others are having the same trouble with YouTube when things break for me. I only ever implemented a backend myself when I chose to self host.