Add local build option with Docker and README

.gitignore

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+/firmware/*.uf2

Dockerfile

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+FROM zmkfirmware/zmk-build-arm:2.4
+
+RUN mkdir -p /app/firmware
+
+WORKDIR /app
+
+COPY config/west.yml config/west.yml
+
+# West Init
+RUN west init -l config
+# West Update
+RUN west update
+# West Zephyr export
+RUN west zephyr-export
+
+COPY config config
+COPY bin/build.sh ./
+
+CMD ["./build.sh"]

README.md

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+# ADV360-PRO-ZMK
+
+## To build Firmware in GitHub Actions
+
+### Setup
+
+1. Fork this repo.
+2. Enable GitHub Actions on your fork.
+
+### Build firmware
+
+1. Push a commit to trigger the build.
+2. Download the artifact.
+
+## To build Firmware locally using Docker
+
+### Setup
+
+1. Execute `setup.sh`.
+
+### Build firmware
+
+1. Execute `run.sh`
+2. Check the `firmware` directory for the latest firmware build.

bin/build.sh

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+#!/usr/bin/env bash
+
+set -e
+
+PWD=$(pwd)
+TIMESTAMP=$(date -u +"%Y%m%d%H%M%S")
+
+# West Build (left)
+west build -s zmk/app -d build/left -b adv360_left -- -DZMK_CONFIG="${PWD}/config"
+# Adv360 Left DTS File
+cat -n build/left/zephyr/adv360_left.dts.pre.tmp
+# Adv360 Left Kconfig file
+cat build/left/zephyr/.config | grep -v "^#" | grep -v "^$"
+# West Build (right)
+west build -s zmk/app -d build/right -b adv360_right -- -DZMK_CONFIG="${PWD}/config"
+# Adv360 Right DTS File
+cat -n build/right/zephyr/adv360_right.dts.pre.tmp
+# Adv360 Right Kconfig file
+cat build/right/zephyr/.config | grep -v "^#" | grep -v "^$"
+# Rename zmk.uf2
+cp build/left/zephyr/zmk.uf2 ./firmware/${TIMESTAMP}-left.uf2 && cp build/right/zephyr/zmk.uf2 ./firmware/${TIMESTAMP}-right.uf2

run.sh

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+#!/usr/bin/env bash
+
+set -e
+
+docker run -it --name zmk zmk
+docker cp zmk:/app/firmware/ ./
+docker stop zmk
+docker rm zmk

setup.sh

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+#!/usr/bin/env bash
+
+set -e
+
+docker build --tag zmk .