Notes from the DejaVu team.
What happened to Rewind, how a private screen memory works, and how we build DejaVu.
- What happened to RewindRewind’s Mac app stopped recording on December 19, 2025, after Meta acquired Limitless. Here is the dated timeline, and what it means for your data.
- How DejaVu decides what to keepHow DejaVu stays light on a Mac — ScreenCaptureKit change regions, a 64×36 fingerprint, hardware HEVC, and text read only where the screen changed.
- How DejaVu protects your memoryThe Secure Enclave, Touch ID and a key per day — how DejaVu keeps remembering while the part that remembers can never read your past, and why deleting is real.