Germ brings end-to-end messaging to Bluesky. It's a messenger based on MLS encryption (like @White Noise for Nostr). Germ is a separate company and has their own app separate from the BlueSky app. Unclear if this is a partnership or "just" and integration. Interesting: in the BlueSky iOS app, pressing a Germ link in someone's bio doesn't download the Germ app but opens an "App Clip" which is a light version of the app that doesn't need you to install the whole app. I believe that Android also has this (unterutulised) feature.

TechCrunch

Germ brings end-to-end encrypted messages to Bluesky | TechCrunch

Germ's new app lets users send end-to-end encrypted messages on Bluesky. TechCrunch speaks with the Germ founders to hear why they came up wit...