I would like to translate this inscription into my own language. Is it possible to change it through the config or do I need to go into the code?

Check the plugins/Brewery/languages folder for a file of phrases matching your language, if there isn't one you can probably create a new one following the format of an existing one, and when you do that go to line 8 in the config and change the language to whatever you called the file. For instance if you wanted french, you would change it from language: en to language: fr