what is sentient-os fr?

Sentient OS is a macOS app that runs an AI model directly on your Mac, reading your own files, screenshots, messages, and notes overnight so it can understand your life without sending that raw data to a company's servers. The idea is that most AI assistants know nothing about you unless you paste in context yourself, and they only act when you ask. Sentient tries to fix both by learning about you locally every night and then proactively suggesting things it could do for you in the morning. Each night at 3 AM, while your Mac is asleep or idle, a local model called Gemma 4 E4B reads new items like files, screenshots, WhatsApp and iMessage chats, and Apple Notes, deciding for each one whether to keep it, discard it as junk, or drop it entirely if it looks sensitive. Only clean, stripped down summaries of the useful items survive. A separate frontier model, accessed through your own ChatGPT Plus subscription rather than any account with Sentient itself, turns those summaries into a plain markdown knowledge base stored in a folder on your Mac that you can read, edit, or delete freely. By morning, the app shows a handful of suggested actions, such as a drafted reply to a message you forgot about, each requiring a single click before anything actually happens. There is also a feature called Sidekick, triggered by clicking the notch on newer MacBooks or holding the right Command key, which lets you speak or type a request like finishing a task, and it carries that out inside your own apps and browser. Optionally, you can connect your knowledge base to other AI tools like ChatGPT or Claude through a cloud relay, using encryption where the decryption key only ever exists on your Mac, so the relay itself only ever holds unreadable data. The app is free, requires an Apple Silicon Mac running macOS 15 or later with at least 8 GB of RAM, and needs a ChatGPT Plus subscription of your own for full functionality, since that subscription covers the portion of processing that happens off your device.