make build
apt install make devscripts debhelper build-essential dh-systemd
debuild -us -uc -b
./nginx-captcha -generate=$AmountOfCAPTCHAs -db=$PathToDBFile
example:
./nginx-captcha -generate=1000 -db=/var/cache/nginx-captcha/captcha.db
./nginx-captcha -db=/var/cache/nginx-captcha/captcha.db -address=unix:/run/nginx-captcha.sock
curl --unix-socket /run/nginx-captcha.sock http:/example.com
The ./nginx dir contains the vhost configuration template.