Launching QuickDID - Fast, Open Handle Resolution for the AT Protocol

QuickDID is a high-performance, open source handle resolution service for the ATmosphere that serves as both public infrastructure at https://quickdid.smokesignal.tools and deployable software under MIT license. It offers flexible caching strategies (memory/Redis/SQLite), scales from single-instance to distributed deployments, and includes production features like rate limiting and proactive cache refresh. Currently a release candidate, it provides a drop-in alternative to Bluesky's resolver while giving developers full control over their handle resolution infrastructure.

AT Protocol and SMTP: When Old Tech Powers New Identity

Exploring how AT Protocol and SMTP can work together to make secure messaging possible by combining 50-year-old email infrastructure with modern cryptographic identity. Building on Chris Boscolo's AT-SMS proposal, this post introduces ideas for adding SMTP services directly to DID documents and leveraging PDS-level cryptographic operations through XRPC methods. The result: verifiable, encrypted communication where messages work like signed JWTs over email, handles prove identity without centralized authorities, and users maintain complete control over their messaging infrastructure. A technical deep-dive into how "boring" technology like SMTP and DNS, combined with AT Protocol's identity primitives, could finally deliver truly portable, private, and permanent messaging.

If-This-Then-AT Blueprint: Payment-Proof Access Gates