Set up default settings for a GitHub Codespace

.devcontainer/Dockerfile

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+ARG VARIANT=debian-12
+FROM mcr.microsoft.com/devcontainers/base:${VARIANT}
+USER root
+
+# Install APT packages
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install tar curl zip unzip bash-completion build-essential ripgrep htop \
+    ninja-build ccache g++ mold gdb clang-format clang-tidy \
+    rpm pkg-config cmake git smpq gettext libsdl2-dev libsdl2-image-dev libsodium-dev \
+    libpng-dev libbz2-dev libfmt-dev libgtest-dev libgmock-dev libsimpleini-dev zsh \
+    qtbase5-dev qt6-base-dev ristretto \
+    && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/*
+
+# Install devilutionx-graphics-tools
+RUN git clone https://github.com/diasurgical/devilutionx-graphics-tools.git /tmp/devilutionx-graphics-tools && \
+    cd /tmp/devilutionx-graphics-tools && \
+    cmake -S. -Bbuild-rel -G Ninja -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF && \
+    cmake --build build-rel -j $(getconf _NPROCESSORS_ONLN) && \
+    cmake --install build-rel --component Binaries && \
+    rm -rf /tmp/devilutionx-graphics-tools
+
+# Install devilutionx-mpq-tools
+RUN git clone https://github.com/diasurgical/devilutionx-mpq-tools.git /tmp/devilutionx-mpq-tools && \
+    cd /tmp/devilutionx-mpq-tools && \
+    cmake -S. -Bbuild-rel -G Ninja -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF && \
+    cmake --build build-rel -j $(getconf _NPROCESSORS_ONLN) && \
+    cmake --install build-rel && \
+    rm -rf /tmp/devilutionx-mpq-tools
+
+# Install d1-graphics-tool
+RUN curl -O -L https://github.com/diasurgical/d1-graphics-tool/releases/latest/download/D1GraphicsTool-Linux-x64.deb && \
+    dpkg -i D1GraphicsTool-Linux-x64.deb && \
+    rm D1GraphicsTool-Linux-x64.deb
+
+# Download spawn.mpq and fonts.mpq
+RUN curl --create-dirs -O -L --output-dir /usr/local/share/diasurgical/devilutionx/ \
+    https://github.com/diasurgical/devilutionx-assets/releases/latest/download/spawn.mpq && \
+    curl --create-dirs -O -L --output-dir /usr/local/share/diasurgical/devilutionx/ \
+    https://github.com/diasurgical/devilutionx-assets/releases/latest/download/fonts.mpq && \
+    chown -R vscode: /usr/local/share/diasurgical/
+
+# Desktop environment configuration
+COPY fluxbox /home/vscode/.fluxbox/

.devcontainer/devcontainer.json

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+{
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"github.vscode-github-actions",
+				"ms-vscode.cmake-tools"
+			]
+		}
+	},
+	"features": {
+		// https://github.com/devcontainers/features/tree/main/src/desktop-lite
+		"ghcr.io/devcontainers/features/desktop-lite:1": {
+			"webPort": 6080,
+			"password": "vscode"
+		},
+		"ghcr.io/devcontainers-contrib/features/zsh-plugins:0": {},
+		"ghcr.io/stuartleeks/dev-container-features/shell-history:0": {}
+	},
+	"forwardPorts": [
+		6080
+	],
+	"portsAttributes": {
+		"6080": {
+			"label": "desktop"
+		}
+	}
+}

.devcontainer/fluxbox/apps

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+[transient] (role=GtkFileChooserDialog)
+  [Dimensions]  {70% 70%}
+  [Position]    (CENTER)        {0 0}
+[end]
+[app] (name=AppRun) (class=tiled)
+  [Fullscreen]  {yes}
+[end]

.devcontainer/fluxbox/menu

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+[begin] (  Application Menu  )
+    [exec] (File Manager) { nautilus /workspaces/devilutionX } </usr/share/icons/gnome/32x32/apps/file-manager.png>
+    [exec] (D1 Graphics Tool) { D1GraphicsTool } <>
+    [exec] (Text Editor) { mousepad } <>
+    [exec] (Terminal) { tilix -w ~ -e $(readlink -f /proc/$$/exe) -il } <>
+    [exec] (Web Browser) { x-www-browser --disable-dev-shm-usage } <>
+    [submenu] (System) {}
+        [exec] (Set Resolution) { tilix -t "Set Resolution" -e bash /usr/local/bin/set-resolution } <>
+        [exec] (Edit Application Menu) { mousepad ~/.fluxbox/menu } <>
+        [exec] (Passwords and Keys) { seahorse } <>
+        [exec] (Top Processes) { tilix -t "Top" -e htop } <>
+        [exec] (Disk Utilization) { tilix -t "Disk Utilization" -e ncdu / } <>
+        [exec] (Editres) {editres} <>
+        [exec] (Xfontsel) {xfontsel} <>
+        [exec] (Xkill) {xkill} <>
+        [exec] (Xrefresh) {xrefresh} <>
+    [end]
+    [config] (Configuration)
+    [workspaces] (Workspaces)
+[end]

docs/github-codespaces.md

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+# Developing with GitHub Codespaces
+
+A GitHub codespace container with all dependencies and several useful tools preinstalled is configured in the `.devcontainer` directory.
+
+You can go to https://github.dev/diasurgical/devilutionX/ and immediately begin developing.
+
+To view the graphical desktop of the container, click Ports > Browser.
+
+The password is `vscode`.
+
+![screenshot](gh-codespaces-ports-browser.png)
+
+For more information about the deskopt envorinonment, see https://github.com/devcontainers/features/tree/main/src/desktop-lite