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Notes from building real-time you own

Cost math, architecture, and the unglamorous details of making calls ring — written by the people who ship it.

Every per-minute invoice from a CPaaS vendor is rent on infrastructure you could own. Here's the math, and the weekend it took to move.

Ringing a phone that's asleep is the feature everyone assumes is impossible to self-host. It isn't — here's the FCM + CallKit path end to end.

Source-available at the core matters. We chose the best open WebRTC SFU and built the product layer developers actually need around it.

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Build the thing you just read about

Every idea here runs on the same platform you can start using free today.