What CGI interpreter shall I use if I'm using the mongoose embedded webserver

Hello.

Currently developing an embedded device where I’m planning to implement CGI to parse, process and manipulate data from HTML. Already reviewed the manual but i’m getting confused on this part:

I know that in order for CGI to work, an interpreter is needed. However, where will I get an interpreter if this is a standalone project, meaning I’ll just use the compiled c programs that includes the mongoose library. An embedded project with no external files to get php-cgi.exe or perl.exe

Hoping for your response. Thanks guys