Init commit.

.devcontainer/Dockerfile

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+FROM espressif/idf:release-v4.3
+
+ARG DEBIAN_FRONTEND=nointeractive
+
+RUN apt-get update \
+  && apt install -y -q \
+  cmake \
+  git \
+  libglib2.0-0 \
+  libnuma1 \
+  libpixman-1-0
+
+RUN ./opt/esp/entrypoint.sh && pip install --no-cache-dir idf-component-manager
+
+# QEMU
+ENV QEMU_REL=esp-develop-20210220
+ENV QEMU_SHA256=44c130226bdce9aff6abf0aeaab44f09fe4f2d71a5f9225ac1708d68e4852c02
+ENV QEMU_DIST=qemu-${QEMU_REL}.tar.bz2
+ENV QEMU_URL=https://github.com/espressif/qemu/releases/download/${QEMU_REL}/${QEMU_DIST}
+
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8
+ENV IDF_PYTHON_ENV_PATH=/opt/esp/python_env/idf4.3_py3.6_env
+
+RUN wget --no-verbose ${QEMU_URL} \
+  && echo "${QEMU_SHA256} *${QEMU_DIST}" | sha256sum --check --strict - \
+  && tar -xf $QEMU_DIST -C /opt \
+  && rm ${QEMU_DIST}
+
+ENV PATH=/opt/qemu/bin:${PATH}
+
+RUN echo $($IDF_PATH/tools/idf_tools.py export) >> $HOME/.bashrc
+
+ENTRYPOINT [ "/opt/esp/entrypoint.sh" ]
+
+CMD ["/bin/bash"]

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.183.0/containers/ubuntu
+{
+	"name": "ESP-IDF QEMU",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"settings": {
+		"terminal.integrated.defaultProfile.linux": "bash",
+		"idf.espIdfPath": "/opt/esp/idf",
+		"idf.customExtraPaths": "",
+		"idf.pythonBinPath": "/opt/esp/python_env/idf4.3_py3.6_env/bin/python",
+		"idf.toolsPath": "/opt/esp",
+		"idf.gitPath": "/usr/bin/git"
+	},
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-vscode.cpptools",
+		"espressif.esp-idf-extension"
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "bash /opt/esp/entrypoint.sh",
+
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	// "remoteUser": "vscodeuser"
+}