I just wrote a small #Python script to create a #sitemap for a #Mastodon account:
https://github.com/binfalse/mastodon-sitemap

Of course also available as a #Docker image:
https://hub.docker.com/r/binfalse/mastodon-sitemap/

My sitemap is already #live at:
https://mstdn.binfalse.de/sitemap.xml

It's basically the natural reaction to
https://mstdn.binfalse.de/@martin/101119587538171149

This will hopefully further support #search engines.. :)