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12d ago

I built an on-device AI that asks why before you open your apps, here's what I learned

Meridian launches here on Tuesday. Before then I wanted to share some of what I figured out building it, because the hard problems weren't technical.

The technical problem was getting a local LLM running on Android without routing anything to the cloud. Solved that with llama.cpp compiled via NDK with a custom JNI bridge. Kairos runs entirely on your device.

The harder problem was behavioral. I don't think blockers work because they add friction without changing intent. You route around them in seconds or force yourself against your own volition in a war of attrition against yourself. Time trackers tend to not work because awareness without intervention just creates anxiety. Two extremes, neither felt like it addresses automaticity directly: The unconscious reach for the phone.

The intervention point I don't see anyone building at is the moment before the app opens. At least in a way that felt ethical to me. That's where Meridian lives.

8d ago

On-device AI asks why before you scroll - Your apps run you on autopilot. Meridian gives you back.

Meridian is a privacy-first Android app that puts a moment of intention between you and your most-used apps. Before you open Instagram or TikTok, Kairos, Meridian's on-device AI asks why you're there. No cloud. No data collection. No subscription. One-time purchase. Built for people who already know they have a phone problem and want a tool that respects their intelligence instead of gamifying their behavior. The AI runs entirely on your device. Your patterns stay yours.