diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..94870f4
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+.git
+build.sh
+README.md
+.dockerignore
diff --git a/Dockerfile b/Dockerfile
index be21516..2b8bc2e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,39 +2,38 @@ ARG UBUNTU_VER=24.04
 
 FROM ubuntu:${UBUNTU_VER}
 
-ENV DEBIAN_FRONTEND=noninteractive
+ARG DEBIAN_FRONTEND=noninteractive
 
 # Enable autocompletion and install packages in optimized layers
 RUN rm /etc/apt/apt.conf.d/docker-* && \
     echo 'if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion; fi' >> /root/.bashrc
 
 RUN apt update && apt install -y \
-        # Basic utilities
-        curl wget nano lsb-release sudo bash-completion jq git screen cron \
-        # Basic networking tools  
-        net-tools iputils-ping iproute2 iptables dnsutils \
-        # Network diagnostic and probing tools
-        tcpdump traceroute netcat-openbsd nmap telnet whois mtr-tiny socat \
-        # Network performance tools
-        iperf3 speedtest-cli \
-        # Network configuration utilities
-        bridge-utils vlan \
-        # VPN and tunneling tools
-        wireguard-tools openvpn stunnel4 \
-        # Packet analysis tools
-        tshark \
-        # Programming languages and runtimes
-        python3 python3-pip python3-venv python3-dev python-is-python3 \
-        # Development tools
-        software-properties-common build-essential \
-        # Remote access
-        openssh-server \
-        # Localization
-        locales
-
-# Install Node.js using official NodeSource repository
-RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash - && \
-    apt-get install -y nodejs
+    # Basic utilities
+    curl wget nano lsb-release sudo bash-completion jq git screen cron \
+    # Basic networking tools
+    net-tools iputils-ping iproute2 iptables dnsutils \
+    # Network diagnostic and probing tools
+    tcpdump traceroute netcat-openbsd nmap telnet whois mtr-tiny socat \
+    # Network performance tools
+    iperf3 speedtest-cli \
+    # Network configuration utilities
+    bridge-utils vlan \
+    # VPN and tunneling tools
+    wireguard-tools openvpn stunnel4 \
+    # Packet analysis tools
+    tshark \
+    # Programming languages and runtimes
+    python3 python3-pip python3-venv python3-dev python-is-python3 \
+    # Development tools
+    software-properties-common build-essential \
+    # Remote access
+    openssh-server \
+    # Localization
+    locales \
+    # Install Node.js using official NodeSource repository
+    && curl -fsSL https://deb.nodesource.com/setup_lts.x | bash - \
+    && apt-get install -y nodejs
 
 # Configure locales
 ENV LC_ALL=en_US.UTF-8
@@ -63,9 +62,6 @@ RUN chmod +x /entrypoint.sh
 
 ENV LOG_FILE=/dev/null
 
-# Reset DEBIAN_FRONTEND
-ENV DEBIAN_FRONTEND=""
-
 EXPOSE 22
 
 CMD ["/entrypoint.sh"]
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e7bce75
--- /dev/null
+++ b/README.md
@@ -0,0 +1,87 @@
+# Ubuntu Dev Environment
+
+Multi-arch (`amd64`/`arm64`) Ubuntu Docker images with pre-installed networking, development, and debugging tools. Built for use as a general-purpose dev environment.
+
+## Available Images
+
+| Version | Gitea | GitHub |
+|---------|-------|--------|
+| 24.04 (latest) | `gitea.ahkhan.me/docker/ubuntu-24.04` | `ghcr.io/ahkhan03/ubuntu-24.04` |
+| 22.04 | `gitea.ahkhan.me/docker/ubuntu-22.04` | `ghcr.io/ahkhan03/ubuntu-22.04` |
+| 20.04 | `gitea.ahkhan.me/docker/ubuntu-20.04` | `ghcr.io/ahkhan03/ubuntu-20.04` |
+
+The `ubuntu:latest` tag points to Ubuntu 24.04.
+
+## Environment Variables
+
+### SSH
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `ENABLE_SSH` | `true` | Start the SSH server on port 22. Set to `false` to disable. |
+
+### Startup / Shutdown Commands
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `COMMAND_INIT` | — | Command to run on container startup. The last init command runs in the background to allow signal handling. |
+| `COMMAND_INIT01`..`COMMAND_INIT99` | — | Additional numbered init commands, executed in order after `COMMAND_INIT`. |
+| `COMMAND_EXIT` | — | Command to run on container shutdown (before processes are terminated). |
+| `COMMAND_EXIT01`..`COMMAND_EXIT99` | — | Additional numbered exit commands, executed in order after `COMMAND_EXIT`. |
+
+### Logging
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `LOG_FILE` | `/dev/null` | Path to a log file to tail. When set, the container's stdout will stream this file. |
+
+### Mirrors (China)
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `USE_CHINA_MIRRORS` | `false` | Switch apt, pip, and npm to Aliyun mirrors on startup. |
+
+### Package Updates
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `UPDATE_APT` | `false` | Run `apt update` on startup (with network check). |
+
+## Usage Examples
+
+Basic:
+```bash
+docker run -d ghcr.io/ahkhan03/ubuntu-24.04
+```
+
+With a startup command and SSH:
+```bash
+docker run -d -p 2222:22 \
+  -e COMMAND_INIT="echo 'hello from init'" \
+  ghcr.io/ahkhan03/ubuntu-24.04
+```
+
+Multiple init/exit commands:
+```bash
+docker run -d \
+  -e COMMAND_INIT01="echo 'first'" \
+  -e COMMAND_INIT02="python3 -m http.server 8080" \
+  -e COMMAND_EXIT01="echo 'shutting down'" \
+  ghcr.io/ahkhan03/ubuntu-24.04
+```
+
+Without SSH, with China mirrors:
+```bash
+docker run -d \
+  -e ENABLE_SSH=false \
+  -e USE_CHINA_MIRRORS=true \
+  ghcr.io/ahkhan03/ubuntu-24.04
+```
+
+## Building
+
+```bash
+./build.sh
+```
+
+See `./build.sh --help` for configuration options.
diff --git a/build.sh b/build.sh
index 0f4c4e4..e65e1ab 100755
--- a/build.sh
+++ b/build.sh
@@ -3,8 +3,10 @@
 set -e
 
 # Configuration
-REGISTRY="${REGISTRY:-gitea.ahkhan.me}"
-REGISTRY_PATH="${REGISTRY_PATH:-docker}"
+REGISTRY="${REGISTRY:-gitea2.ahkhan.me}" # pushed through gitea2 because gitea is behind CF tunnel and has issues with large image pushes.
+REGISTRY_PATH="${REGISTRY_PATH:-packages}"
+GITHUB_REGISTRY="${GITHUB_REGISTRY:-ghcr.io}"
+GITHUB_USER="${GITHUB_USER:-ahkhan03}"
 REPO_PREFIX="${REPO_PREFIX:-ubuntu}"
 PLATFORMS="${PLATFORMS:-linux/amd64,linux/arm64}"
 DATE_TAG=$(date +%Y-%m-%d)
@@ -43,15 +45,18 @@ build_ubuntu_version() {
     
     log "Building Ubuntu ${version}..."
     
-    # Build tags for this version
+    # Build tags for this version (Gitea + GitHub)
     local tags=(
         "${REGISTRY}/${REGISTRY_PATH}/${repo_name}:latest"
         "${REGISTRY}/${REGISTRY_PATH}/${repo_name}:${DATE_TAG}"
+        "${GITHUB_REGISTRY}/${GITHUB_USER}/${repo_name}:latest"
+        "${GITHUB_REGISTRY}/${GITHUB_USER}/${repo_name}:${DATE_TAG}"
     )
-    
+
     # Add ubuntu:latest tag only for the latest version
     if [[ "$version" == "$LATEST_VERSION" ]]; then
         tags+=("${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}:latest")
+        tags+=("${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}:latest")
     fi
     
     # Build tag arguments
@@ -124,7 +129,8 @@ validate_setup() {
 # Function to show build summary
 show_summary() {
     log "Build Summary:"
-    echo "Registry: $REGISTRY"
+    echo "Gitea registry:  $REGISTRY/$REGISTRY_PATH"
+    echo "GitHub registry: $GITHUB_REGISTRY/$GITHUB_USER"
     echo "Date tag: $DATE_TAG"
     echo "Platforms: $PLATFORMS"
     echo "Ubuntu versions: ${UBUNTU_VERSIONS[*]}"
@@ -132,11 +138,14 @@ show_summary() {
     
     echo "Images that will be built:"
     for version in "${UBUNTU_VERSIONS[@]}"; do
-        echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:latest"
-        echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:${DATE_TAG}"
-        echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:buildcache (cache)"
+        echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:latest"
+        echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:${DATE_TAG}"
+        echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}-${version}:latest"
+        echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}-${version}:${DATE_TAG}"
+        echo "  Cache:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:buildcache"
         if [[ "$version" == "$LATEST_VERSION" ]]; then
-            echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}:latest"
+            echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}:latest"
+            echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}:latest"
         fi
         echo ""
     done
@@ -169,10 +178,13 @@ main() {
     
     log "Available images:"
     for version in "${UBUNTU_VERSIONS[@]}"; do
-        echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:latest"
-        echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:${DATE_TAG}"
+        echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:latest"
+        echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}-${version}:${DATE_TAG}"
+        echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}-${version}:latest"
+        echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}-${version}:${DATE_TAG}"
     done
-    echo "  ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}:latest (→ Ubuntu ${LATEST_VERSION})"
+    echo "  Gitea:   ${REGISTRY}/${REGISTRY_PATH}/${REPO_PREFIX}:latest (→ Ubuntu ${LATEST_VERSION})"
+    echo "  GitHub:  ${GITHUB_REGISTRY}/${GITHUB_USER}/${REPO_PREFIX}:latest (→ Ubuntu ${LATEST_VERSION})"
 }
 
 # Help function
@@ -182,10 +194,12 @@ show_help() {
     echo "Usage: $0 [OPTIONS]"
     echo ""
     echo "Environment Variables:"
-    echo "  REGISTRY       Docker registry (default: gitea.ahkhan.me)"
-    echo "  REGISTRY_PATH  Registry path (default: docker)"
-    echo "  REPO_PREFIX    Repository prefix (default: ubuntu)"
-    echo "  PLATFORMS      Target platforms (default: linux/amd64,linux/arm64)"
+    echo "  REGISTRY         Gitea registry (default: gitea.ahkhan.me)"
+    echo "  REGISTRY_PATH    Gitea registry path (default: docker)"
+    echo "  GITHUB_REGISTRY  GitHub registry (default: ghcr.io)"
+    echo "  GITHUB_USER      GitHub username (default: ahkhan03)"
+    echo "  REPO_PREFIX      Repository prefix (default: ubuntu)"
+    echo "  PLATFORMS        Target platforms (default: linux/amd64,linux/arm64)"
     echo ""
     echo "Examples:"
     echo "  REGISTRY=myregistry.com ./build.sh"
diff --git a/scripts/bin/configure-china-mirrors b/scripts/bin/configure-china-mirrors
index b230370..dc358a9 100644
--- a/scripts/bin/configure-china-mirrors
+++ b/scripts/bin/configure-china-mirrors
@@ -8,10 +8,16 @@ set -e
 echo "Configuring Chinese mirrors (Aliyun) for apt, pip, and npm..."
 
 # Replace Ubuntu sources with Aliyun mirror
+# Ubuntu 24.04+ uses DEB822 format in sources.list.d/ubuntu.sources
 if [[ -f /etc/apt/sources.list.d/ubuntu.sources ]]; then
     sudo sed -i 's|http://archive.ubuntu.com/ubuntu/|https://mirrors.aliyun.com/ubuntu/|g' /etc/apt/sources.list.d/ubuntu.sources
     sudo sed -i 's|http://security.ubuntu.com/ubuntu/|https://mirrors.aliyun.com/ubuntu/|g' /etc/apt/sources.list.d/ubuntu.sources
-    echo "Updated Ubuntu apt sources to use Aliyun mirrors"
+    echo "Updated Ubuntu apt sources (DEB822 format) to use Aliyun mirrors"
+# Ubuntu 22.04 and older use the traditional sources.list format
+elif [[ -f /etc/apt/sources.list ]]; then
+    sudo sed -i 's|http://archive.ubuntu.com/ubuntu|https://mirrors.aliyun.com/ubuntu|g' /etc/apt/sources.list
+    sudo sed -i 's|http://security.ubuntu.com/ubuntu|https://mirrors.aliyun.com/ubuntu|g' /etc/apt/sources.list
+    echo "Updated Ubuntu apt sources (sources.list format) to use Aliyun mirrors"
 fi
 
 # Configure npm registry to use Chinese mirror (npmmirror.com is the recommended mirror)
diff --git a/scripts/bin/setup-user-home b/scripts/bin/setup-user-home
index 1800856..30bee1c 100644
--- a/scripts/bin/setup-user-home
+++ b/scripts/bin/setup-user-home
@@ -3,14 +3,19 @@
 # Setup home directory for the current user
 # Useful for attaching vscode with container
 
-set -e
-
 user_name=$(whoami)
-user_home="/home/$user_name"
+
+# Root's home is /root, not /home/root
+if [[ "$user_name" == "root" ]]; then
+    user_home="/root"
+else
+    user_home="/home/$user_name"
+fi
 
 echo "Setting up home directory for user: $user_name"
 sudo mkdir -p "$user_home"
 sudo chown -R "$(id -u):$(id -g)" "$user_home"
-cp -r /etc/skel/. "$user_home" 2>/dev/null || true
+# Use -n (no-clobber) to avoid overwriting existing dotfiles (e.g. from mounted volumes)
+cp -rn /etc/skel/. "$user_home" 2>/dev/null || true
 
 echo "Home directory setup completed: $user_home"
diff --git a/scripts/entrypoint.sh b/scripts/entrypoint.sh
index 1f2fe79..ac0e89c 100755
--- a/scripts/entrypoint.sh
+++ b/scripts/entrypoint.sh
@@ -36,7 +36,7 @@ term_handler() {
     # Kill any still-running background processes if they didn't shut down gracefully
     if [[ -n "$INIT_PID" ]]; then
         if kill -0 "$INIT_PID" 2>/dev/null; then
-            echo "Init process still running, force killing: $INIT_PID"
+            echo "Init process still running, sending SIGTERM: $INIT_PID"
             kill "$INIT_PID" 2>/dev/null
         else
             echo "Init process already terminated gracefully"
@@ -49,9 +49,11 @@ term_handler() {
         kill "$TAIL_PID" 2>/dev/null
     fi
     
-    # Stop SSH service
-    echo "Stopping SSH service..."
-    sudo service ssh stop 2>/dev/null || true
+    # Stop SSH service if it was started
+    if [[ "${ENABLE_SSH:-true}" == "true" || "$ENABLE_SSH" == "1" ]]; then
+        echo "Stopping SSH service..."
+        sudo service ssh stop 2>/dev/null || true
+    fi
     
     echo "Cleanup completed, exiting..."
     exit 0
@@ -75,8 +77,13 @@ if [[ $LOG_FILE != "/dev/null" ]]; then
     sudo chown -R "$(id -u):$(id -g)" "$LOG_FILE"
 fi
 
-echo "Starting SSH service..."
-sudo service ssh start
+# Start SSH service unless explicitly disabled
+if [[ "${ENABLE_SSH:-true}" == "true" || "$ENABLE_SSH" == "1" ]]; then
+    echo "Starting SSH service..."
+    sudo service ssh start
+else
+    echo "SSH service disabled (ENABLE_SSH=$ENABLE_SSH)"
+fi
 
 # Run initialization commands (last one in background to allow signal handling)
 # First collect all defined COMMAND_INIT variables