Auto-documenting homelab architecture diagrams

Auto-documenting a homelab: the quest for free architecture diagrams

TL;DR I spent a full day trying to automatically generate professional architecture diagrams for a 7-node k3s homelab. Figma’s MCP integration was perfect but requires a paid subscription. I tried Excalidraw (JSON generation + Kroki rendering), Mermaid, and finally landed on raw SVG generation in Python. The result is 27 diagrams with tech icons, drop shadows, and curved arrows — but the process is more manual than I’d like. I’m curious if anyone else has found a truly automated, free solution. ...

April 14, 2026 · 7 min · zolty

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