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Simon Willison's Blog·20d ago·5 min read
Mermaid to Unicode box art (grok-mermaid)
TL;DR
A self-contained terminal renderer for Mermaid diagrams was developed in Rust, enabling the visualization of diagrams in a terminal environment. The project was then adapted for use in a web browser via WebAssembly.
✦ Why It Matters
Engineers can implement this WebAssembly-based Mermaid renderer to enhance documentation and visualization in their web applications today.
Key Takeaways
- Experiment with Rust for building web applications.
- Consider WebAssembly for performance-critical tasks in browsers.
- Utilize Mermaid for creating interactive diagrams.
- Explore the Grok CLI for coding agent capabilities.
How It Works
The terminal renderer for Mermaid diagrams is implemented in Rust, which is known for its performance and safety. By compiling this Rust code to WebAssembly, it can be executed in web browsers, allowing users to create and view diagrams without needing a separate application.
This method leverages the efficiency of Rust while providing the accessibility of web technologies.