I don't think we have any bulk import tools yet, although there are a few things that can be used to manually upload files If you run your own blossom-server https://github.com/hzrd149/blossom-server then it has a UI for uploading files. Bouquet also has an upload interface https://bouquet.slidestr.net but you will have to have a server first But none of this will really give you censorship resistance, it just means you would be hosting your own media. In theory blossom is censorship resistance but it has not been tested yet and there aren't many servers Another option that would be good to for a backup would be to create a torrent of the files and upload it to https://dtan.xyz/ It would require at least one person seeding for it to stay online. but as things stand bittorrent it the most censorship resistant distribution tech we have