Architecture

The repository keeps product-neutral diagram data separate from platform rendering:

1. mermaid-core turns source into a typed AST and source-located diagnostics.
2. mermaid-layout-api defines layout input/output and draw-command seams.
3. mermaid-layout-simple supplies the permissive deterministic starter layout. A future ELK adapter is isolated because ELK/elk-swift are EPL-2.0, not MIT.
4. mermaid-render-svg serializes common data; an ASCII renderer may be added later as a separate module.
5. mermaid-kuikly reserves the future host text-measurement and drawing adapter seam; its native renderer is not implemented yet. No DOM, WebView, or JavaScript type belongs in commonMain.

The AST intentionally has no coordinates or font assumptions. Layout receives a text-measurement seam and returns stable geometry. This makes parser tests and geometry tests deterministic while allowing Android, iOS, and OHOS fonts to remain platform-specific.

Public modules share one version and are published with Gradle Module Metadata. Consumers should depend on exact published artifacts rather than source or composite builds.