Decided
May 5, 2026
Shipped
May 5, 2026
Scope
compose
Reasoning
A markdown editor without preview is asking the writer to render mental simulation of remark/rehype, which they shouldn't have to do.
We had two options:
- Client-side markdown library — instant but ~50–150kb bundle bloat and rendering drift between client and server pipelines.
- Server-action round-trip — ~200ms latency per preview click.
We chose the server action — preview is an explicit gesture, not per-keystroke, so latency is fine, and the published HTML is the previewed HTML. No drift.
Push back. Or sit with it.
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Slug · compose-write-preview-tabs