all you need is a config/ directory under the appPath
If you do not have any settingsfiles to read, show will always report
settings not found
If you write, you can only write a new file with settings in the root
like `cfg write PREFIX
='{"key":"value","key2":{"some":"more","levels":"there"}}'
Which will give you a file `config/PREFIX.conf.php` with the contents
``` php
<?php return
[
'key' => 'value',
'key2' =>
[
'some' => 'more',
'levels' => 'there'
]
];
```
If you have a `default.conf.php` but now `conf.php` and modify a setting
a new conf.php file with the setting to override is written
