You are creating a site with typo3? You have no intention to have multiple domains even in future? You have no intention of using extensions? Just use the core extension SimulateStaticDocuments and enable it in your typoscript template with:
config.simulateStaticDocuments = 1
It works fine.
But seriously you do not want to do that!
The standard configuration is just as simple as I describe it on my site.
Now do not be silly to expect it to take over the routes of your self made extension. Extensions like tt_news have documentation how to configure RealUrl properly.
If an extension has no preparation for the routes with RealUrl it is just a shit extension do not blame Typo3 for this.