🧑‍💻 add devcontainer setup

Author: jonas-merkle

.devcontainer/Dockerfile

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+# Use the base dev container image
+FROM mcr.microsoft.com/devcontainers/base:ubuntu
+
+# Update package lists and install required packages
+RUN apt-get update && apt-get install -y \
+    curl \
+    wget \
+    btop \
+    fontconfig \
+    git \
+    unzip \
+    xz-utils \
+    zip \
+    libglu1-mesa \
+    software-properties-common \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install .NET 10 SDK
+RUN add-apt-repository ppa:dotnet/backports \
+    && apt-get update \
+    && apt-get install -y dotnet-sdk-10.0 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Hack Nerd Font for terminal use
+RUN mkdir -p ~/.fonts && wget -q -P ~/.fonts https://github.com/ryanoasis/nerd-fonts/releases/latest/download/Hack.zip \
+    && unzip -o ~/.fonts/Hack.zip -d ~/.fonts && fc-cache -fv \
+    && rm -f ~/.fonts/Hack.zip
+
+# Switch to the vscode user (assumes the user already exists in this base image)
+USER vscode
+
+# Install Powerlevel10k theme
+RUN git clone --depth=1 https://github.com/romkatv/powerlevel10k.git /home/vscode/.oh-my-zsh/custom/themes/powerlevel10k \
+    && sed -i 's|ZSH_THEME=".*"|ZSH_THEME="powerlevel10k/powerlevel10k"|' /home/vscode/.zshrc
+
+# Install Zsh plugins
+RUN git clone https://github.com/zsh-users/zsh-autosuggestions /home/vscode/.oh-my-zsh/custom/plugins/zsh-autosuggestions \
+    && git clone https://github.com/zsh-users/zsh-syntax-highlighting /home/vscode/.oh-my-zsh/custom/plugins/zsh-syntax-highlighting \
+    && git clone https://github.com/zsh-users/zsh-history-substring-search /home/vscode/.oh-my-zsh/custom/plugins/history-substring-search \
+    && sed -i 's|plugins=(.*)|plugins=(git zsh-autosuggestions zsh-syntax-highlighting history-substring-search)|' /home/vscode/.zshrc
+
+# Switch to the root user
+USER root
+
+# Ensure proper permissions for the vscode user
+RUN chown -R vscode:vscode /home/vscode/.oh-my-zsh /home/vscode/.zshrc
+
+# Switch to the vscode user (assumes the user already exists in this base image)
+USER vscode
+
+# Set Zsh as the default shell and ensure the container starts with the vscode user
+WORKDIR /workspaces
+CMD [ "zsh" ]
+USER vscode

.devcontainer/devcontainer.json

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+{
+    "name": "Ubuntu Dev Container",
+    "build": {
+        "dockerfile": "Dockerfile",
+        "options": [
+            "--ssh=default"
+        ]
+    },
+    "features": {
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {
+            "installDockerBuildx": true
+        }
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "vscode-icons-team.vscode-icons",
+                "streetsidesoftware.code-spell-checker",
+                "streetsidesoftware.code-spell-checker-german",
+                "eamodio.gitlens",
+                "seatonjiang.gitmoji-vscode",
+                "ms-dotnettools.csdevkit"
+            ],
+            "settings": {
+                "editor.fontFamily": "Hack Nerd Font Mono",
+                "editor.tabSize": 4,
+                "editor.insertSpaces": true,
+                "files.autoSave": "afterDelay",
+                "git.enableSmartCommit": true,
+                "git.confirmSync": false,
+                "git.autofetch": true,
+                "terminal.integrated.defaultProfile.linux": "zsh",
+                "terminal.integrated.fontFamily": "Hack Nerd Font Mono",
+                "telemetry.telemetryLevel": "crash",
+                "workbench.colorTheme": "Default Dark Modern",
+                "workbench.iconTheme": "vscode-icons",
+                "cSpell.language": "de,en",
+                "gitlens.telemetry.enabled": false
+            }
+        }
+    },
+    "remoteUser": "vscode"
+}