# Sketch to SAP BTP

Turn a rough architecture idea into a polished **SAP BTP architecture diagram**
in seconds. Feed it either a hand-drawn/whiteboard **sketch (image)** or a
**Mermaid diagram**, and it produces a clean draw.io XML diagram (plus an
inline SVG preview) styled in SAP's official BTP solution-diagram visual
language — complete with an LLM-generated architecture review calling out
gaps, risks, and suggestions.

## Two ways in

- **Image sketch** — upload a photo or screenshot of a whiteboard sketch; the
  vision model reads the shapes, labels, and connections and maps them to the
  matching SAP BTP services/icons.
- **Mermaid** — paste a Mermaid diagram and get the same SAP BTP-styled
  draw.io output without needing to draw anything by hand.

Every conversion is saved to a local history so past diagrams and their
review notes can be revisited later, exported again, or refined further.

## Access note

This app has **no built-in authentication** of its own — access control is
handled at the edge (Authentik SSO via the homeserver's forward-auth gate).
Anyone who reaches the app through the gate can drive the full pipeline.

## Dependencies

Requires a reachable Ollama-compatible LLM endpoint (configured via the
"Ollama URL" field) with the configured vision and validator models
available. An optional Brandfetch API key enables looking up third-party
brand logos for non-SAP components in a diagram.