Blog.
Case studies and notes on building things for the web.
9 min read
Building Call AI: a real-time voice agent for banks with Gemini Live and Twilio
How I built a real-time voice agent for a loans and deposits desk with Gemini Live, FastAPI and Twilio Media Streams: the audio pipeline, barge-in, code-enforced authorization and a call lifecycle that never cuts off the goodbye.
case-studyvoice-aigemini-livefastapipythontwiliowebsockets
8 min read
Building SketchyDraw: a real-time collaborative whiteboard
How I built a hand-drawn collaborative whiteboard with Next.js, a HTTP server, a WebSocket server and Postgres: the sync model, an infinite canvas, a split between durable and ephemeral messages, and the trade-offs I made.
case-studynextjswebsocketsroughjspostgresqlcanvasmonorepo