In the document section of the “Installation Guide”, it says:
Easy installer will generate config.php for you, after you have entered your database credentials and initialized tt-rss database. You will need to either copy text from the installer and paste it into config.php on the server, or, if possible, the installer will be able to do it for you automatically.
Why can’t the installer generate and save the config.php file?
Where does the config.php need to go?