bundle: update (2026-01-16)

extensions/km-plot/README.md

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+# KM Plot
+
+Inkscape extension for Knox Makers to drive HPGL based vinyl/plotter devices over serial. Largely based on the built-in Export > Plot extension for Inkscape but with a GTK interface and Serial Port detection.
+
+https://git.knoxmakers.org/KnoxMakers/km-plot
+
+
+## Manual Installation
+
+1) Create a km-plot/ sub-directory in your Inkscape extensions directory:
+   - Linux: `~/.config/inkscape/extensions/`
+     - Flatpak: `~/.var/app/org.inkscape.Inkscape/config/inkscape/extensions/`
+     - Snap: `~/snap/inkscape/current/.config/inkscape/extensions/`
+   - macOS (Inkscape app bundle): `~/Library/Application Support/org.inkscape.Inkscape/config/inkscape/extensions/`
+   - Windows: `%APPDATA%\Inkscape\extensions\`
+
+2) Copy the files from this repo into that km-plot directory
+
+3) Restart Inkscape, then find the extension under **Extensions > Knox Makers > Vinyl Cutter > Plot**.
+
+4) Connect your plotter via USB/serial; select the detected port in the Device tab, adjust settings as needed, and click **Send to plotter**.
+
+## Demo
+
+![KM Plot demo](docs/km-plot.gif)