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Media Mail Cutovers: Wildcard DNS, Customer Verification, and Tenant Records

A media publisher cannot treat domain onboarding as complete when a page loads. Newsletters, alerts, and contributor mail also need SPF, DKIM, and DMARC to be published and observable, often while a…

  • Media publishers must verify SPF, DKIM, and DMARC records for newsletters and alerts.
  • Use wildcards only for routing layer, maintain mail-authentication records separately per customer.
  • Model DNS changes as a state machine with requested, observed, verified, active, and drifted states.

Prop Continuity Desk: the parcel cannot be in two places

An entry prepared for Sanity Challenge — Path Two . What I Built Prop Continuity Desk is a rehearsal planning board for a small theatre production.

  • Prop Continuity Desk tracks a single play with six scenes and twelve props
  • Review of a plan is tied to exact plan and history, not just physical setup
  • The app handles constraints like six scenes, twelve props, and stage zones

QUIC & HTTP/3: The End of TCP? This is How the New Web Protocol Era Works

QUIC & HTTP/3: Das Ende von TCP? So funktioniert die neue Web-Protokoll-Ära Wenn du jemals auf eine Website geklickt hast und gesehen hast, wie der Browser minutenlang läd – während der…

  • QUIC replaces TCP, addressing its 40-year-old limitations
  • UDP-based QUIC offers multiplexing without TCP's serial restrictions
  • HTTP/3 activation requires Nginx module installation and port 443 configuration

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