Development mode for personal IP address

the lateral thinking mode is this :  you have your web set up on local host . thats where you play with it , fix bugs and improve it. on that one you have development mode. your live  web is a clone of your    dev web on local host, and in that case its set to production mode. Every improvement you do on  localhost you push to live. No need then to  change modeon live

Thank's for your answer, but what you have said is quite obvious, but I am interested in the answer specifically to my question. Is it possible to implement this somehow within this framework or not? And if so, how?