SysML Repo Modeler is now open source and free to use. It turns one GitHub repository—or many—into an explorable SysML v2 system model. Get the code on GitHub.
It gives us a coherent way to visualize our own repositories, services, APIs, and layers of institutional knowledge in an exploratory systems view. And now it’s open source for anyone to freely use.
Explore a Live Model
Want to see the result before getting into the details? Start with the live Supabase Platform model, which maps five repositories and four languages as one system. You can also explore the OpenClaw model, the n8n model and the Ollama model. All four sit side by side in the SysML Repo Modeler gallery, with the repository, part and connection counts for each.
Open the live Supabase Platform model — click the image to search, filter, and explore the system.
The Problem: Architecture Lives in Too Many Places
The reality is that modern systems are scattered across multiple repositories, services, APIs, and layers of institutional knowledge. The challenge is not that teams lack documentation; it is that documentation struggles to keep up with what the code does.
Traditional Model-Based Systems Engineering (MBSE) documentation can be useful, but it is often manually maintained across disparate software platforms that require significant user knowledge and training, with limited ability to transfer data between tools. As a system evolves, the diagram becomes a snapshot of what people thought a system looked like but not necessarily what exists now.