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Record an async architecture walkthrough for your team

An async architecture walkthrough is a recorded whiteboard session where you diagram a system and narrate the design decisions so teammates can watch on their own time. Excalicast captures the diagram operations and your voice together, then exports an MP4 or (on Max) a lightweight replay link instead of a heavy video file.

Steps

  1. 1

    Diagram the system

    Sketch services, data flow, and boundaries on the Excalidraw canvas as you would in a design review.

  2. 2

    Narrate the decisions

    Record while you explain the trade-offs. The operation stream keeps the diagram crisp; your reasoning is preserved on the audio track.

  3. 3

    Share async

    Export an MP4 for any channel, or on Max generate a replay link that streams the operation stream + audio (10–20× smaller than a video) for recipients to watch in the browser.

FAQ

Why not just screen-record a Zoom call?

Screen recording captures pixels, so any overlapping window or notification ends up in the file and the result is locked to one resolution. Operation-stream capture stays clean and can be re-exported to any aspect ratio.