Really crude and hastily put together RSS to Buttondown importer.

This will let you select from the posts in your feed and import it into Buttondown as a draft email using a template to

• Copy .env.example -> .env and configure.
• templates/rss_import.md for formatting the .md used in the Buttondown (uses Mustache).
  • Available variables: sitename, url, title, author, content.
• You might need to modify the code in rss2button.md to fit your target RSS/Atom feed. I've only tested it on ours.
• bundle install
• ruby rss2button.rb

Example

Select post (Press ↑/↓ arrow to move and Enter to select)
  intersections – Happy Bandcamp Friday (maddie)
  Perseids 🌠 (maddie)
  Chip’s Challenge and an early childhood journey through cryptography (maddie)
‣ Beat saber, VRChat (maddie)
  Happy 15 years to Super Mario Galaxy ✨ (maddie)

Draft created!
{"id":"aa115649-7bdb-49fb-94bb-e21f7665be3a","creation_date":"2025-03-13T11:52:24.673626Z","modification_date":"2025-03-13T11:52:24.673725Z","publish_date":null,"attachments":[],"subject":"Beat saber, VRChat","canonical_url":"https://heymaddie.com/posts/2022-11-07--beat-saber-vrchat/"
…

Known Issues

• For some reason, the Buttondown API eats the newlines, so you'll have to add them back yourself in the Buttondown email editor. Not sure how to fix this yet ><;.