New Launchpad app in Flutter

.devcontainer/Dockerfile

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+# Update VARIANT in devcontainer.json to pick a Dart version
+ARG VARIANT=2
+FROM dart:${VARIANT}
+
+# [Option] Install zsh
+ARG INSTALL_ZSH="true"
+# [Option] Upgrade OS packages to their latest versions
+ARG UPGRADE_PACKAGES="true"
+
+# Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
+ARG USERNAME=vscode
+ARG USER_HOME=/home/${USERNAME}
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+COPY library-scripts/*.sh /tmp/library-scripts/
+RUN apt-get update && /bin/bash /tmp/library-scripts/common-debian.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" "true" "true"
+
+# Add bin location to path
+ENV PUB_CACHE="/usr/local/share/pub-cache"
+ENV PATH="${PUB_CACHE}/bin:${PATH}"
+RUN if ! cat /etc/group | grep -e "^pub-cache:" > /dev/null 2>&1; then groupadd -r pub-cache; fi \
+    && usermod -a -G pub-cache ${USERNAME} \
+    && umask 0002 \
+    && mkdir -p ${PUB_CACHE} \
+    && chown :pub-cache ${PUB_CACHE} \
+    && sed -i -e "s/export PATH=/export PATH=\/usr\/local\/share\/pub-cache:/" /etc/profile.d/00-restore-env.sh \
+    #
+    # Fix incorrect privs if present on directories - https://github.com/dart-lang/dart-docker/issues/62, https://github.com/dart-lang/sdk/issues/47093
+    && chmod 755 "$DART_SDK" "$DART_SDK/bin"
+
+# Install additional OS packages.
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends \
+    openjdk-11-jdk-headless wget curl git xz-utils zip unzip \
+    clang cmake ninja-build pkg-config libgtk-3-dev \
+    libwebkit2gtk-4.0-dev libkeybinder-3.0-dev libayatana-appindicator3-dev
+# Clean up packages
+RUN apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts
+
+# Switch to non-root user
+USER ${USERNAME}
+WORKDIR ${USER_HOME}
+
+#
+# Android SDK
+# https://developer.android.com/studio#downloads
+# ENV ANDROID_SDK_TOOLS_VERSION=8512546
+# ENV ANDROID_PLATFORM_VERSION=33
+# ENV ANDROID_BUILD_TOOLS_VERSION=33.0.0
+# ENV ANDROID_HOME=~/android-sdk-linux
+# ENV ANDROID_SDK_ROOT="$ANDROID_HOME"
+# ENV PATH=${PATH}:${ANDROID_HOME}/cmdline-tools/cmdline-tools/bin:${ANDROID_HOME}/platform-tools:${ANDROID_HOME}/emulator
+
+# RUN curl -C - --output android-sdk-tools.zip https://dl.google.com/android/repository/commandlinetools-linux-${ANDROID_SDK_TOOLS_VERSION}_latest.zip \
+# 	&& mkdir -p ${ANDROID_HOME}/ \
+# 	&& unzip -q android-sdk-tools.zip -d ${ANDROID_HOME}/cmdline-tools/ \
+# 	&& rm android-sdk-tools.zip \
+# 	&& yes | sdkmanager --licenses \
+# 	&& touch $HOME/.android/repositories.cfg \
+# 	&& sdkmanager platform-tools \
+# 	&& sdkmanager emulator \
+# 	&& sdkmanager "platforms;android-${ANDROID_PLATFORM_VERSION}" "build-tools;$ANDROID_BUILD_TOOLS_VERSION" \
+# 	&& sdkmanager --install "cmdline-tools;latest" 
+# # create emulator android	
+# RUN sdkmanager "system-images;android-${ANDROID_PLATFORM_VERSION};google_apis;x86_64" \
+# 	&& avdmanager create avd -n Android${ANDROID_PLATFORM_VERSION} -k "system-images;android-${ANDROID_PLATFORM_VERSION};google_apis;x86_64"
+
+#
+# Flutter SDK
+# https://flutter.dev/docs/development/tools/sdk/releases?tab=linux
+ENV FLUTTER_CHANNEL="stable"
+ENV FLUTTER_VERSION="3.3.10"
+# Make sure to use the needed channel and version for this.
+ENV FLUTTER_HOME=${USER_HOME}/flutter
+ENV PATH=${PATH}:${FLUTTER_HOME}/bin
+
+RUN curl -C - --output flutter.tar.xz https://storage.googleapis.com/flutter_infra_release/releases/${FLUTTER_CHANNEL}/linux/flutter_linux_${FLUTTER_VERSION}-${FLUTTER_CHANNEL}.tar.xz \
+	&& tar -xf flutter.tar.xz -C ~ \
+	&& rm flutter.tar.xz \
+	&& flutter config --android-sdk "${ANDROID_SDK_ROOT}" \
+	&& yes | flutter doctor --android-licenses \
+	&& flutter config --no-analytics \
+	&& flutter update-packages

.devcontainer/devcontainer.json

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+{
+	"name": "Dart (Community)",
+	"build": {
+		"dockerfile": "Dockerfile",
+		// Update VARIANT to pick a Dart version
+		"args": { "VARIANT": "2" }
+	},
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			// Add the IDs of extensions you want installed when the container is created.
+			"extensions": [
+				"dart-code.dart-code",
+				"dart-code.flutter"
+			]
+		}
+	},
+
+	// 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": "uname -a",
+	// "postCreateCommand": "flutter create test_project",
+
+	// Set `remoteUser` to `root` to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode",
+	"features": {
+		"ghcr.io/devcontainers/features/common-utils:2": {},
+		"ghcr.io/devcontainers-contrib/features/cue-asdf:1": {},
+		"ghcr.io/devcontainers-contrib/features/svu-asdf:1": {},
+		"ghcr.io/eitsupi/devcontainer-features/go-task:1": {},
+		"ghcr.io/dhoeric/features/google-cloud-cli:1": {},
+		"ghcr.io/warrenbuckley/codespace-features/sqlite:1": {}
+	}
+}