diff --git a/Hardware.md b/Hardware.md
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+# Hardware
+
+## Classification
+
+Hardware / firmware workspace.
+
+## Structure Signals
+
+- `ESP32-PortaPack-Mesh-Network-Project` (10 files)
+- `(root)` (1 files)
+
+## File Type Signals
+
+- `(none)` (5)
+- `.ino` (2)
+- `.gitignore` (1)
+- `.md` (1)
+- `.cpp` (1)
+- `.ini` (1)
+
+## Build And Dependency Signals
+
+| Signal | Detail |
+|---|---|
+| platformio.ini | envs=esp32dev; boards=esp32dev; frameworks=arduino |
+| Arduino sketches | ESP32-PortaPack-Mesh-Network-Project/MASTER-esp.ino, ESP32-PortaPack-Mesh-Network-Project/SLAVE-esp.ino |
+| README files | ESP32-PortaPack-Mesh-Network-Project/README.md, README.md |
+
+## Project Tree Snapshot
+
+- .gitignore
+- ESP32-PortaPack-Mesh-Network-Project/.git/HEAD
+- ESP32-PortaPack-Mesh-Network-Project/.git/config
+- ESP32-PortaPack-Mesh-Network-Project/.git/description
+- ESP32-PortaPack-Mesh-Network-Project/.git/index
+- ESP32-PortaPack-Mesh-Network-Project/.git/packed-refs
+- ESP32-PortaPack-Mesh-Network-Project/MASTER-esp.ino
+- ESP32-PortaPack-Mesh-Network-Project/README.md
+- ESP32-PortaPack-Mesh-Network-Project/SLAVE-esp.ino
+- ESP32-PortaPack-Mesh-Network-Project/mayhem-app.cpp
+- ESP32-PortaPack-Mesh-Network-Project/platformio.ini
+
+## Interpretation
+
+Treat this repo as hardware-affecting until proven otherwise. Add exact board revision, wiring, flashing command, and recovery procedure before release.