What you post on Nostr is auto cross-posted to Mastodon.
Nostrdon bridges Nostr notes over to Mastodon. Post on Nostr, it auto cross-posts over to Mastondon. It's working, but consider this beta and experimental. Images are not loading inline on Mastodon, but clickable links to the images are working. Maybe someone can help with this. :)
The installation instructions assume you are using an Ubuntu VPS, but the bridge can also run on a desktop, laptop, or Raspberry Pi (as long as Node.js is available).