install xcaddy on caddy

sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https curl

# Add the GPG key
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/xcaddy/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-xcaddy-archive-keyring.gpg

# Add the repository source list
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/xcaddy/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-xcaddy.list

# Update and install
sudo apt update
sudo apt install xcaddy

# Install the Go programming language compiler
sudo apt install golang-go