Switch VM setup from Arch Linux to Ubuntu 22.04

Arch ARM tooling has limited support on UTM/Apple Silicon.
Ubuntu 22.04 gallery image works out of the box.

- setup.sh: apt-get packages, Ubuntu paths (/sbin/agetty, .profile)
- README.md: UTM gallery workflow instead of manual ISO install
- Default repo URL: github.com/CloudNebulaProject/wayray

vm/README.md

@@ -1,7 +1,7 @@
 # WayRay VM Testing Setup
 
-Visual testing environment for the WayRay compositor using an Arch Linux
+Visual testing environment for the WayRay compositor using an Ubuntu
-aarch64 VM on macOS Apple Silicon via UTM.
+22.04 aarch64 VM on macOS Apple Silicon via UTM.
 
 ## Prerequisites
 
@@ -10,60 +10,40 @@ aarch64 VM on macOS Apple Silicon via UTM.
 
 ## Create the VM
 
-### 1. Download the Arch Linux ARM ISO
+### 1. Get the Ubuntu 22.04 image from the UTM Gallery
 
-Go to <https://archlinux.org/download/> and download the latest aarch64
+1. Open UTM
-ISO image.
+2. Click **+** to create a new VM
+3. Select **Browse UTM Gallery...**
+4. Find and download **Ubuntu 22.04**
+5. The VM is pre-configured with reasonable defaults
 
-### 2. Create a new VM in UTM
+### 2. Adjust VM settings (optional)
 
-1. Open UTM, click **Create a New Virtual Machine**
+The gallery image works out of the box, but for faster Rust compilation:
-2. Select **Virtualize**
+
-3. Select **Linux**
+1. Select the VM in UTM, click the **settings icon**
-4. Browse to the downloaded ISO
+2. Under **System**:
-5. Configure hardware:
+   - **CPU:** 4 cores (or more)
-   - **CPU:** 4 cores
    - **RAM:** 8192 MB (8 GB)
-6. Configure storage:
-   - **Disk size:** 30 GB
-7. Give it a name (e.g., "WayRay Dev")
-8. Click **Save**
 
-The VM defaults to VirtIO display and shared networking, which is what
+### 3. Boot and run the setup script
-we need.
 
-### 3. Install Arch Linux
+1. Start the VM and log in (gallery image credentials are shown in UTM)
-
+2. Open a terminal and run:
-1. Boot the VM from the ISO
-2. Run `archinstall`
-3. Recommended settings:
-   - **Mirrors:** Select your region
-   - **Disk configuration:** Use entire disk, ext4
-   - **Bootloader:** systemd-boot
-   - **Profile:** Minimal
-   - **User:** Create a user with sudo privileges
-   - **Network:** NetworkManager
-4. Complete the installation and reboot
-5. Remove the ISO from the VM's CD drive in UTM settings
-
-### 4. Run the setup script
-
-Boot into the installed system and log in, then:
 
 ```bash
-# Install git first (needed to clone the repo)
-sudo pacman -S git --noconfirm
-
 # Clone WayRay and run the setup script
-git clone <your-wayray-repo-url> ~/wayray
+git clone https://github.com/CloudNebulaProject/wayray.git ~/wayray
 bash ~/wayray/vm/setup.sh
 
 # Reboot to apply auto-login and start Sway
 sudo reboot
 ```
 
-Note: the script skips cloning if `~/wayray` already exists, so passing
+The setup script installs all dependencies (Wayland libs, Mesa, Sway,
-the repo URL to `setup.sh` is only needed if you haven't cloned yet.
+Rust), builds WayRay, and configures auto-login into a minimal Sway
+session.
 
 ## Testing the Compositor
 
@@ -103,29 +83,40 @@ A foot terminal should appear inside the wrsrvd window. You can:
 
 ### Sway fails to start
 
-If Sway fails with a GPU error, the VirtIO GPU may not be working
+If Sway fails with a GPU or seat error:
-with Apple Virtualization.framework. Try switching UTM to QEMU backend:
+
+```bash
+# Check seatd is running
+systemctl status seatd
+
+# Check group membership (need seat and video)
+groups
+
+# If missing, add and reboot
+sudo usermod -aG seat,video $USER
+sudo reboot
+```
+
+If the VirtIO GPU isn't working, try switching UTM to QEMU backend:
 
 1. Shut down the VM
-2. In UTM, edit the VM settings
+2. Edit VM settings
 3. Under **System**, uncheck "Use Apple Virtualization"
-4. Under **Display**, ensure VirtIO GPU is selected
+4. Boot again
-5. Boot again
 
 ### Black screen after reboot
 
-The auto-login or Sway autostart may have failed. Switch to TTY2 with
+Switch to TTY2 with `Ctrl+Alt+F2`, log in, and check:
-`Ctrl+Alt+F2`, log in, and check:
 
 ```bash
-# Check if seatd is running
-systemctl status seatd
-
-# Check if user is in seat group
-groups
-
 # Try starting Sway manually
 sway
+
+# Check the auto-login override
+cat /etc/systemd/system/getty@tty1.service.d/override.conf
+
+# Check .profile for Sway launch
+tail ~/.profile
 ```
 
 ### Build fails
@@ -140,3 +131,12 @@ rustc --version
 # Retry
 cargo build --workspace
 ```
+
+### Missing Wayland/EGL libraries
+
+If `cargo build` fails with missing `-lwayland-client` or EGL errors:
+
+```bash
+# Reinstall dev packages
+sudo apt-get install -y libwayland-dev libegl1-mesa-dev libgles2-mesa-dev libxkbcommon-dev
+```

vm/setup.sh

@@ -1,11 +1,11 @@
 #!/usr/bin/env bash
 # WayRay VM Provisioning Script
-# Run as a regular user inside a fresh Arch Linux aarch64 install.
+# Run as a regular user inside an Ubuntu 22.04 aarch64 VM (UTM gallery image).
 # Idempotent — safe to run multiple times.
 
 set -euo pipefail
 
-REPO_URL="${1:-}"
+REPO_URL="${1:-https://github.com/CloudNebulaProject/wayray.git}"
 WAYRAY_DIR="$HOME/wayray"
 
 info() { printf '\033[1;34m==> %s\033[0m\n' "$*"; }
@@ -15,45 +15,58 @@ ok()   { printf '\033[1;32m==> %s\033[0m\n' "$*"; }
 # ── 1. System packages ───────────────────────────────────────────────
 
 info "Updating system packages..."
-sudo pacman -Syu --noconfirm
+sudo apt-get update
+sudo apt-get upgrade -y
 
 PACKAGES=(
     # Build tools
-    base-devel
+    build-essential
+    pkg-config
+    cmake
 
     # Wayland
-    wayland
+    libwayland-dev
     wayland-protocols
-    libxkbcommon
+    libxkbcommon-dev
 
     # Graphics (Mesa provides EGL/OpenGL for Winit's GlesRenderer)
-    mesa
+    libgles2-mesa-dev
+    libegl1-mesa-dev
+    libgbm-dev
+    libdrm-dev
 
     # Session
     sway
-    seatd
     foot
+    seatd
 
     # Tools
     git
-    openssh
+    curl
+    openssh-client
 )
 
 info "Installing packages..."
-sudo pacman -S --needed --noconfirm "${PACKAGES[@]}"
+sudo apt-get install -y "${PACKAGES[@]}"
 
 # ── 2. Services ──────────────────────────────────────────────────────
 
 info "Enabling seatd..."
-sudo systemctl enable --now seatd
+sudo systemctl enable --now seatd || true
 
 # Add user to seat group if not already a member.
-if ! groups | grep -q '\bseat\b'; then
+if getent group seat &>/dev/null && ! groups | grep -q '\bseat\b'; then
     info "Adding $USER to seat group..."
     sudo usermod -aG seat "$USER"
     warn "Group change requires re-login. Re-run this script after reboot."
 fi
 
+# Some Ubuntu setups need the user in video group for GPU access.
+if ! groups | grep -q '\bvideo\b'; then
+    info "Adding $USER to video group..."
+    sudo usermod -aG video "$USER"
+fi
+
 # ── 3. Rust toolchain ────────────────────────────────────────────────
 
 if command -v cargo &>/dev/null; then
@@ -65,11 +78,15 @@ else
     source "$HOME/.cargo/env"
 fi
 
+# Make cargo available in this session if .cargo/env exists.
+# shellcheck disable=SC1091
+[ -f "$HOME/.cargo/env" ] && source "$HOME/.cargo/env"
+
 # Verify edition 2024 support (Rust 1.85+).
-RUST_VERSION=$(rustc --version | grep -oP '\d+\.\d+')
+RUST_VERSION=$(rustc --version | sed -n 's/rustc \([0-9]*\.[0-9]*\).*/\1/p')
 RUST_MAJOR=$(echo "$RUST_VERSION" | cut -d. -f1)
 RUST_MINOR=$(echo "$RUST_VERSION" | cut -d. -f2)
-if (( RUST_MAJOR < 1 || (RUST_MAJOR == 1 && RUST_MINOR < 85) )); then
+if [ "$RUST_MAJOR" -lt 1 ] || { [ "$RUST_MAJOR" -eq 1 ] && [ "$RUST_MINOR" -lt 85 ]; }; then
     warn "Rust $RUST_VERSION may not support edition 2024. Run: rustup update"
 fi
 
@@ -78,15 +95,7 @@ fi
 if [ -d "$WAYRAY_DIR" ]; then
     ok "WayRay repo already cloned at $WAYRAY_DIR"
 else
-    if [ -z "$REPO_URL" ]; then
+    info "Cloning WayRay from $REPO_URL..."
-        echo ""
-        echo "WayRay repo URL not provided."
-        echo "Usage: $0 <git-repo-url>"
-        echo "Example: $0 https://github.com/user/wayray.git"
-        echo "         $0 git@github.com:user/wayray.git"
-        exit 1
-    fi
-    info "Cloning WayRay..."
     git clone "$REPO_URL" "$WAYRAY_DIR"
 fi
 
@@ -106,13 +115,13 @@ else
     sudo tee "$GETTY_OVERRIDE" > /dev/null <<EOF
 [Service]
 ExecStart=
-ExecStart=-/usr/bin/agetty --autologin $USER --noclear %I \$TERM
+ExecStart=-/sbin/agetty --autologin $USER --noclear %I \$TERM
 EOF
     sudo systemctl daemon-reload
 fi
 
 # Start Sway on TTY1 login (only if not already in a graphical session).
-PROFILE="$HOME/.bash_profile"
+PROFILE="$HOME/.profile"
 SWAY_LAUNCH='[ "$(tty)" = "/dev/tty1" ] && exec sway'
 if ! grep -qF 'exec sway' "$PROFILE" 2>/dev/null; then
     info "Adding Sway auto-start to $PROFILE..."