1.0. Open NGINX config file (the one responsible for projects.peercoin.net)
1.1. Add this block as the first "location" block:
location ~ /.well-known {
root /var/www/pc-showcase/;
allow all;
}
1.2. Restart NGINX
2.0. Run the command (update the first part with your letsencrypt path):
sudo ~/letsencrypt/letsencrypt-auto certonly -a webroot --agree-tos --renew-by-default --webroot-path=/var/www/pc-showcase -d peercoin.net -d www.peercoin.net -d talk.peercoin.net -d projects.peercoin.net
2.1 Copy the cert key path and paste to NGINX config
2.2 Restart NGINX