feat: publish script and cleanup

scripts/install.d/30-docker.sh

@@ -3,9 +3,11 @@ docker --version
 
 readonly docker_group="docker"
 if ! grep -q "$docker_group" /etc/group; then
+    echo "Adding docker group"
     sudo groupadd "$docker_group"
 fi
 
 if ! groups "$USER" | grep -q "\b$docker_group\b"; then
+    echo "Adding user to docker group"
     sudo usermod -aG docker "$USER"
 fi