- A file provider like https://nostr.build but offering torrent seeding instead of direct downloads

- A platform for turning torrent magnet links into images (caching them briefly)

- Nostr clients uploading stuff (small images) to these torrent providers and inserting the magnet links in the notes

- Nostr clients that download render magnet links as images (if file size and content-type are applicable)

- Nostr clients that don't want to download torrents directly can turn the magnet links into normal image links from the aforementioned platform