Show HN: Whiteboard (YC W26) – An open-source IDE for thoughtful software design
2.55T2 sourceHacker News · Show HN (50+ points)
Source record
Published by Hacker News · Show HN (50+ points) (T2 source). The original is at https://github.com/devdotfast/whiteboard.
Pipeline notes
The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.
SummaryWhiteboard is an open-source desktop IDE built on CodeOSS where humans and AI agents (Claude Code, Codex) architect software on a shared visual canvas. Features include clickable diagrams linked to code, a semantic AST-aware diff viewer in Rust, and a decision log connecting agent traces to implementation.
Why it mattersDistinct angle on agent-assisted coding: visual design artifacts linked to specific code locations, plus a semantic diff that filters slop. Open source, so readers can try the workflow directly.

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