diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7d7ada7..f1e95fb 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,17 +18,24 @@ jobs:
           submodules: true
 
       - name: Set TERM environment variable
-        run: echo "TERM=xterm" >> $GITHUB_ENV
+        run: echo "TERM=xterm" >> "$GITHUB_ENV"
+
+      # Trying to expose ports in GitHub Actions causes a "bind: address already
+      # in use" error. Also, restarting containers should be disabled for
+      # testing whether any exit.
+      - name: Remove exposed ports configuration and disable container restart
+        run: |
+          yq eval 'del(.services.*.ports)' -i compose.yml
+          yq eval '.services.*.restart = "no"' -i compose.yml
 
       - name: Run the setup script
         run: ./setup.sh
 
-      - name: Build Docker images
-        uses: docker/bake-action@v4
-        with:
-          pull: true
-          load: true
-          push: false
-          set: |
-            *.cache-from=type=gha
-            *.cache-to=type=gha,mode=max
+      - name: Test starting the servers
+        run: |
+          docker compose up -d
+          sleep 35
+          docker compose ps -a
+          docker compose logs
+          # Fail if any containers exited
+          ! docker compose ps -a | grep Exited
diff --git a/setup.sh b/setup.sh
index e741c53..d21e1e8 100755
--- a/setup.sh
+++ b/setup.sh
@@ -46,10 +46,14 @@ check_prerequisites() {
         exit 1
     elif [ "$prerequisites_warning" = true ]; then
         warning "Prerequisites check completed with warnings."
-        printf "Do you want to continue anyway (y/N)? "
-        read -r continue_anyway
-        if [ "$continue_anyway" != "Y" ] && [ "$continue_anyway" != "y" ]; then
-            exit 1
+
+        if [ -z "${CI+x}" ]; then
+            # Optional prerequisites can be ignored in CI
+            printf "Do you want to continue anyway (y/N)? "
+            read -r continue_anyway
+            if [ "$continue_anyway" != "Y" ] && [ "$continue_anyway" != "y" ]; then
+                exit 1
+            fi
         fi
     else
         success "All prerequisites are installed."
@@ -57,22 +61,21 @@ check_prerequisites() {
 
 }
 
-ci_setup() {
-    warning "It looks like the script is running in CI. Only setup tasks required for building the Docker images will be performed."
-    stage "Setting up submodules and applying patches."
-    ./scripts/setup-submodule-patches.sh
-    stage "Setting up environment variables."
-    ./scripts/setup-environment.sh "1.1.1.1" "2.2.2.2" "3.3.3.3"
-    success "CI setup completed."
-}
-
 setup_environment_variables() {
-    echo "Enter the IP address of your Pretendo Network server. It must be accessible to your console."
-    read -r server_ip
-    echo "Enter the IP address of your Wii U (optional). It is only used for automatic FTP uploads of modified Inkay patches."
-    read -r wiiu_ip
-    echo "Enter the IP address of your 3DS (optional). It is only used for automatic FTP uploads."
-    read -r ds_ip
+    if [ -n "${CI+x}" ]; then
+        warning "It looks like the script is running in CI. Using test IP addresses."
+        server_ip="0.0.0.0"
+        wiiu_ip=""
+        ds_ip=""
+    else
+        echo "Enter the IP address of your Pretendo Network server. It must be accessible to your console."
+        read -r server_ip
+        echo "Enter the IP address of your Wii U (optional). It is only used for automatic FTP uploads of modified Inkay patches."
+        read -r wiiu_ip
+        echo "Enter the IP address of your 3DS (optional). It is only used for automatic FTP uploads."
+        read -r ds_ip
+    fi
+
     ./scripts/setup-environment.sh "$server_ip" "$wiiu_ip" "$ds_ip"
 }
 
@@ -102,11 +105,6 @@ cd "$git_base"
 title "Unofficial Pretendo Network setup script"
 header "Pretendo setup script started at $(date)."
 
-if [ -n "${CI+x}" ]; then
-    ci_setup
-    exit 0
-fi
-
 stage "Checking prerequisites."
 check_prerequisites