--- /dev/null
+# Mirza — Source Metadata Investigation
+
+**Model**: Claude Opus 4.6
+**Date**: 2026-03-12
+
+## Repository
+
+- **URL**: https://github.com/Tarobish/Mirza
+- **Owner**: Tarobish (KB Studio / Borna Izadpanah)
+- **Latest commit**: `fa7b59c92953e7f437d079a8c118a7952c507f09`
+- **Commit date**: 2016-03-02
+- **Commit message**: `+ 'Generated/Arabic/Mirza-Bold.otf'` (adds generated build artifacts)
+- **Default branch**: `master` (gh-pages branch also exists)
+- **Last repository activity**: 2026-02-24 (likely automated/metadata update)
+
+The repository identity is confirmed by the copyright in METADATA.pb which lists `tarobish@gmail.com` (KB Studio) alongside co-authors Lasse Fister (`graphicore.de`) and Eduardo Tunni.
+
+## Source Files
+
+The `Sources/` directory contains:
+
+- `Sources/Mirza 2 Masters.glyphs` — Glyphs app source (primary Arabic masters)
+- `Sources/Mirza-LATIN-SOURCE.glyphs` — Glyphs app source for Latin subset
+- `Sources/technical-additions.sfd` — FontForge SFD file (supplemental glyphs)
+- `Sources/features.fea` — OpenType feature code
+- `Sources/specific.fea` — script-specific OT features
+- `Sources/pos-specific.fea` — positioning-specific OT features
+- `Sources/data.json`, `Sources/data-Regular.json`, `Sources/data-Medium.json`, `Sources/data-SemiBold.json`, `Sources/data-Bold.json` — per-weight metadata/data files
+
+Pre-compiled binaries are stored under `Sources/Build/Arabic/` and `Sources/Build/Latin/` for use by the build scripts.
+
+Final built fonts land in `Fonts/`:
+- `Fonts/Mirza-Regular.ttf`, `Fonts/Mirza-Medium.ttf`, `Fonts/Mirza-SemiBold.ttf`, `Fonts/Mirza-Bold.ttf`
+
+## Build System
+
+The repo has a custom shell-script-based build pipeline:
+
+- `Makefile` — top-level build orchestration, calls `Tools/build.sh`
+- `Tools/build.sh` — iterates over all four weights, invoking `Tools/buildFont.sh` per weight
+- `Tools/buildFont.sh` — detailed per-weight build logic: merges Arabic and Latin OTF/TTF sources using custom Python tools, generates GDEF/GPOS/GSUB feature files, runs `makeotf`, and applies finalization scripts
+- `Tools/` — contains multiple custom Python scripts (`mergeFonts.py`, `getArabSubset.py`, `mergeGlyphs.py`, `finalize.py`, `kernFeatureWriter.py`, etc.) and a `ftSnippets/` sub-library
+
+This is a **highly custom** build system that predates gftools. It relies on `makeotf` (AFDKO) and several bespoke Python tools maintained within the repository. The pipeline is not compatible with the standard `gftools builder` / `config.yaml` approach.
+
+## config.yaml Status
+
+No `config.yaml` exists in the upstream repo or in the `ofl/mirza/` directory in google/fonts. Creating one would require significant re-engineering of the build pipeline, as the current system is not based on gftools.
+
+## Notes
+
+- The repository has been effectively dormant on the `master` branch since March 2016 (the last substantive commit).
+- The primary source format is Glyphs app (`.glyphs`), which is well-supported by modern tooling (fontmake, gftools builder). This makes a future migration to a gftools-based pipeline feasible, albeit non-trivial given the Arabic complexity and custom feature engineering.
+- The font covers Arabic and Latin scripts, with four weights (Regular, Medium, SemiBold, Bold).
+- Co-authors include Lasse Fister (graphicore) and Eduardo Tunni, both active in the broader font community.
+- The `gh-pages` branch likely hosts the project website.
+- Confidence in repo identification: **High** — repo name, owner email (`tarobish@gmail.com`), and multi-weight Arabic font structure all match the METADATA.pb exactly.