Krewva blog

Building Krewva Life and Krewva Biz.

Founder-voice notes on what we're shipping, why we picked the constraints we picked, and what life looks like when one Life agent and eight Biz agents work across the apps you already own.

  1. Zeming Liang

    The economics of an AI CS rep: when does it pay off?

    ROI math on a $99.99/month AI customer support rep versus a $3,000-5,000/month human. When the economics flip, when they don't, and the things a real CS rep does that the AI version still cannot.

    • business
    • biz
  2. Zeming Liang

    What I learned rebranding Famvoy to Krewva

    We changed the name in 14 days. The company was called Famvoy for 18 months before we admitted the name was capping us. An honest founder note on cost, process, and what to do when you've outgrown your own brand.

    • founders
    • brand
  3. Haiyang Wu

    Why we read chat.db locally: privacy as architecture, not promise

    Apple Full Disk Access, direct chat.db reads, ephemeral processing. Why local-first beats privacy promises, with the architecture diagram in plain ASCII.

    • engineering
    • privacy
  4. Haiyang Wu

    How we built the trust dial: engineering autonomy that earns its place

    A technical deep-dive into per-bucket per-platform autonomy gating. Schema design, the auto-reply gate, and why we chose programmatic ladders over a learned policy.

    • engineering
    • trust
  5. Zeming Liang

    Why most AI assistants fail at messaging

    AI works in chat windows where context is bounded. Messaging is unbounded, your iMessage going back four years includes inside jokes, code-switching, context shifts. That's the wall most AI hits.

    • opinion
    • technical
  6. Zeming Liang

    Inbox-native vs chat windows — the architecture difference

    Why ChatGPT, Claude, and Notion AI all live in chat windows, why moving messages out of native inboxes is friction, and how Krewva's local-first connector architecture changes the latency, privacy, and cost math.

    • technical
    • architecture
  7. Zeming Liang

    The trust dial — instant autonomy, sender by sender

    Why we picked drafts-wait-for-approval as the default, how one-click sender controls work, and why granular per-platform per-bucket autonomy beats a single auto-pilot toggle.

    • product
    • trust
  8. Zeming Liang

    Why we built Krewva — and why every chatbot stops short

    AI assistants that close their laptop at 5pm don't help anyone. A founder note on why we abandoned the chat-window abstraction and built app-native AI that works through the night.

    • founders
    • manifesto