+# Sofadi One -- Upstream Source Investigation
+
**Model**: Claude Opus 4.6
-# Sofadi One — Upstream Source Investigation
+## Source Repository
+
+Design sources were found in the **googlefontdirectory-hg** archive (Google Font Directory, Mercurial-era).
+
+- **Repository**: googlefontdirectory-hg
+- **Commit**: `52f780bc9d197280a9f430574e179a5f233c56b6`
+- **Source path**: `sofadione/src/`
+
+## Source Files
+
+The source directory contains: 3 VFB files (FontLab, proprietary format).
-## Summary
+The VFB format is proprietary (FontLab) and cannot be built with gftools-builder. These sources are **not directly buildable** with the current open-source pipeline.
-Sofadi One is a display typeface designed by Botjo Nikoltchev and released in 2011. It was added to Google Fonts on 2012-09-30.
+### Key source files
+
+- `SofadiOne-Regular-OTF.vfb` (VFB, proprietary)
+- `SofadiOne-Regular-TTF.vfb` (VFB, proprietary)
+- `SofadiOne-Regular.vfb` (VFB, proprietary)
## Designer
- **google-fonts-bower/sofadione-bower** — a deprecated bower packaging mirror.
No repository owned by Botjo Nikoltchev containing UFO or Glyphs sources was found.
-
-## Status
-
-No canonical upstream repository with UFO or Glyphs sources was found. No source block was added.
-
-## Confidence
-
-Low — No public source repository was found for this typeface.