Notes
How the app decides what to keep, where the data lives, and what it costs to run — written by the person who wrote the code.
A screen history is mostly the same screen, over and over. Here is how LockTime tells a changed screen from a still one — 36,864 samples at a time.
A recording of your screen is the most sensitive file on your computer. Encryption at rest, a key that stays in the keychain, and zero network requests until you ask for one.
Capture, read, encrypt, index — about a third of a second, about one percent of a core. Three decisions that got it there.
LockTime