Running your own server
NOTE
The intended use for Share Note is for quick and non-permanent sharing of notes. If you're wanting to host your notes as a long-term website, I recommend using Quartz.
The server is open source and runs as a Docker container: https://github.com/note-sx/server. Its README covers the compose file and the .env options, including the upload size limit, whether new users can register, and optional Cloudflare Turnstile and cache purging.
docker pull ghcr.io/note-sx/server:latestPointing the plugin at your server
In the plugin settings, turn on Show advanced options and set Server URL to your server's address. The next time you share, the plugin sends you to your server's connect page for a new API key, or press Connect plugin to do it straight away.
Notes you shared through share.note.sx before switching stay where they are. Sharing one of them again through your own server creates a new link there.

