SMRTR ProgrammingJun 10, 2026lobste.rs

Building a multiplayer podcast editor with Automerge

SMRTR summary

Building multiplayer UIs used to require funded teams and deep expertise — now it's one npm install away with Automerge. This experience report covers real challenges from building a collaborative podcast editor: designing orthogonal data models for CRDT-safe merging, implementing list reorder at the application layer, and leveraging custom text marks for rich transcript features. Practical and honest about Automerge's limits.

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