“In the latest release of D2 (0.7.1), we introduce ASCII outputs.”
Finally a text-to-diagram tool that gets it. Embed your diagrams directly in source code comments where they belong. No more linking to external images that rot. No more “see diagram in wiki” that nobody maintains. The alpha limitations are real. No curves, no colors, rectangles everywhere. But for documenting code flow in a README? This is the right idea.