diff --git a/Hardware.md b/Hardware.md
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--- a/Hardware.md
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+# Hardware
+
+## Classification
+
+Hardware / firmware workspace.
+
+## Structure Signals
+
+- `handshake-capture-c6` (18 files)
+- `(root)` (1 files)
+
+## File Type Signals
+
+- `.cpp` (6)
+- `.h` (6)
+- `.md` (5)
+- `.gitignore` (1)
+- `.ino` (1)
+
+## Build And Dependency Signals
+
+| Signal | Detail |
+|---|---|
+| Arduino sketches | handshake-capture-c6/handshake-capture-c6.ino |
+| README files | README.md, handshake-capture-c6/README.md |
+
+## Project Tree Snapshot
+
+- .gitignore
+- handshake-capture-c6/Display_ST7789.cpp
+- handshake-capture-c6/Display_ST7789.h
+- handshake-capture-c6/HandshakeCapture.cpp
+- handshake-capture-c6/HandshakeCapture.h
+- handshake-capture-c6/IMPROVEMENTS.md
+- handshake-capture-c6/LVGL_Driver.cpp
+- handshake-capture-c6/LVGL_Driver.h
+- handshake-capture-c6/MUST_DO_IMPROVEMENTS.md
+- handshake-capture-c6/PLAN.md
+- handshake-capture-c6/PRODUCTION.md
+- handshake-capture-c6/README.md
+- handshake-capture-c6/SD_Card.cpp
+- handshake-capture-c6/SD_Card.h
+- handshake-capture-c6/SPI_Bus_Lock.cpp
+- handshake-capture-c6/SPI_Bus_Lock.h
+- handshake-capture-c6/WiFi_Scanner.cpp
+- handshake-capture-c6/WiFi_Scanner.h
+- handshake-capture-c6/handshake-capture-c6.ino
+
+## Interpretation
+
+Treat this repo as hardware-affecting until proven otherwise. Add exact board revision, wiring, flashing command, and recovery procedure before release.