poVoq that file is actually no longer in use, as I have moved to a more centralized approach where forum information is pulled directly from FreeFlarum's database. But if I remember correctly, it was basically config.php in a JSON format, e. g.:
{
"debug": false,
"offline": false,
"database": {
"driver": "mysql",
...
}
...
}
Edit: I've now updated the repo, old version can be viewed here
