Хм ... вроде Lua нормально к nginx подключается - всё по мануалу.

===================== ну типа заметки, надо бы функцию на opennet скрывать под котом :-) ==================
Lua

Alternatively, ngx_lua can be manually compiled into Nginx:

    LuaJIT can be downloaded from the latest release of OpenResty's LuaJIT fork. The official LuaJIT 2.x releases are also supported, although performance will be significantly lower for reasons elaborated above

$ git clone https://github.com/openresty/luajit2
$ cd luajit2
$ make
$ sudo make install

(Возможно будет работать с стандартным libluajit-5.1-dev после apt-get install libluajit-5.1-dev.)

    Download the latest version of the ngx_devel_kit (NDK) module HERE (git clone https://github.com/vision5/ngx_devel_kit)
    Download the latest version of ngx_lua HERE (git clone https://github.com/openresty/lua-nginx-module)
    Download the latest supported version of Nginx HERE (See Nginx Compatibility) nginx-1.19.9.tar.gz

Распаковываем в modules Указываем - куда установлен luajit (в нашем случае /usr/local)

export LUAJIT_LIB=/path/to/luajit/lib
export LUAJIT_INC=/path/to/luajit/include/luajit-2.1

Добавляем в configure -

--add-module=modules/ngx_devel_kit \
--add-module=modules/lua-nginx-module \
--add-module=modules/ModSecurity-nginx

или

--add-dynamic-module=modules/ngx_devel_kit \
--add-dynamic-module=modules/lua-nginx-module \
--add-dynamic-module=modules/ModSecurity-nginx