Privacy and digital agency are under siege by dark patterns, aggressive data harvesting, and SaaS monopolies. It’s time to reclaim our digital self-determination. This talk demonstrates how to build a production-ready, fully autonomous personal cloud using the declarative power of NixOS.We will explore how to self-host drop-in replacements for mainstream services—including Nextcloud for storage, Vaultwarden for passwords, and Matrix for communication. Attendees will learn how to turn any old PC or cheap VPS into an unbreachable digital fortress featuring automated backups, end-to-end encryption, and complete data isolation. Discover how NixOS makes personal infrastructure reproducible, resilient, and entirely yours.