Nginx Setup for Debian

sudo su
cat <<EOF >> /etc/apt/sources.list.d/nginx.list
deb http://nginx.org/packages/debian/ buster nginx
deb-src http://nginx.org/packages/debian/ buster nginx
EOF
exit
curl -L https://nginx.org/keys/nginx_signing.key | sudo apt-key add -
sudo apt update
sudo apt install nginx

sudo su
wget -O -  https://get.acme.sh | sh -s email=my@example.com

source ~/.bashrc
acme.sh --issue -d example.com --nginx

sudo apt -y install snapd
sudo snap install core; sudo snap refresh core

sudo snap install --classic certbot
sudo snap install certbot-dns-cloudflare
sudo ln -s /snap/bin/certbot /usr/bin/certbot

sudo certbot --nginx