- Make a copy at the Internet Archive here.
- Make a secondary copy at archive.today. (other services are available too, for instance https://perma.cc/)
- Share those links far and wide.
- Make a local copy of the web page. (the WARCreate extension is the preferred method)
- Submit your archive as a pull request to this repository. If you need help with this, open an issue.
- Download youtube-dl
- In a command prompt, in the folder you downloaded it to, run
youtube-dl <URL OF VIDEO/PLAYLIST/CHANNEL>
(more options documented here) - Re-upload videos to as many platforms as possible, particularly censorship-resistant ones like PeerTube.
- Let people know that you archived/reuploaded the content.