I'm building an open source Federated Public Key Directory, so that I can then build end-to-end encryption for the Fediverse.
https://github.com/fedi-e2ee/public-key-directory-specificat...
Think: Encrypted DMs for Mastodon. I wrote several blog posts about the project and why it matters.
https://soatok.blog/2024/08/21/federated-key-transparency-pr...
https://soatok.blog/2024/06/06/towards-federated-key-transpa...
https://soatok.blog/2022/11/22/towards-end-to-end-encryption...
Eventually I plan on doing a "Show HN" post when it's built and close to feature-complete.