This will configure nginx to build a ngx_brotli.

plesk_ngx_brotli.sh

/#!/bin/bash

./configure --prefix=/usr/share \
--sbin-path=/usr/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--modules-path=/usr/share/nginx/modules \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--lock-path=/var/lock/nginx.lock \
--pid-path=/run/nginx.pid \
--http-client-body-temp-path=/var/lib/nginx/body \
--http-fastcgi-temp-path=/var/lib/nginx/fastcgi \
--http-proxy-temp-path=/var/lib/nginx/proxy \
--http-scgi-temp-path=/var/lib/nginx/scgi \
--http-uwsgi-temp-path=/var/lib/nginx/uwsgi \
--user=nginx \
--group=nginx \
--with-file-aio \
--with-compat \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_sub_module \
--with-http_dav_module \
--with-http_gzip_static_module \
--with-http_stub_status_module \
--with-http_v2_module \
--add-dynamic-module=/root/addons/nginx/modules/ngx_brotli \
--with-openssl-opt='zlib no-idea no-mdc2 no-rc5 no-ssl2 no-shared -fpic'