access USB from devcontainer and add arch linux support

Author: PercevalSA

.devcontainer/Dockerfile

@@ -6,11 +6,17 @@ ARG USERNAME=vscode
 # nodejs is required for SonarQube
 RUN apt update \
     && DEBIAN_FRONTEND=noninteractive apt -y install --no-install-recommends \
-    python3-venv \
     nodejs \
+    python3-venv \
     && apt autopurge -y \
     && apt clean -y \
-    && rm -rf /var/lib/apt/lists/* \
-    && usermod -a -G dialout $USERNAME \
-    && usermod -a -G plugdev $USERNAME
+    && rm -rf /var/lib/apt/lists/*
 
+RUN mkdir -p /etc/udev/rules.d/ \
+    && curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/system/99-platformio-udev.rules \
+    -o /etc/udev/rules.d/99-platformio-udev.rules \
+    && chmod 644 /etc/udev/rules.d/99-platformio-udev.rules \
+    && usermod -a -G dialout $USERNAME \
+    && usermod -a -G plugdev $USERNAME \
+    && groupadd --system --gid 986 rs232 \
+    && usermod -a -G rs232 $USERNAME 

.devcontainer/devcontainer.json

@@ -1,29 +1,16 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/cpp
 {
     "name": "C++",
-    // specify to build docker image
     "build": {
         "dockerfile": "Dockerfile"
     },
-    // for podamn/docker compat. you must wrap docker with 'PODMAN_USERNS=keep-id podman "$@"'
     "remoteUser": "vscode",
     "containerUser": "vscode",
-    // uncomment to access USB
-    // "runArgs": [
-    //     "--privileged"
-    // ],
-    // "postAttachCommand": "sudo service udev restart",
-    // // to access USB devices via /dev
-    // "mounts": [
-    //     "source=/dev/,target=/dev/,type=bind,consistency=consistent"
-    // ]
-    // uncomment to display applications GUI
-    // "containerEnv": {
-    //     "DISPLAY": ":0",
-    //     "XDG_RUNTIME_DIR": "/tmp",
-    //     "WAYLAND_DISPLAY": "${localEnv:WAYLAND_DISPLAY}"
-    // }
+    "runArgs": [
+        "--privileged"
+    ],
+    "mounts": [
+        "source=/dev/,target=/dev/,type=bind,consistency=cached"
+    ],
     "customizations": {
         "vscode": {
             "extensions": [