@arineko
Which version of DSM are you running ? DSM5 causes a lot of regression in PHP (check the end of the
FAQ).
There is nothing that should prevent COPS from working if the directory is mixed case.
about config_local.php the README is hopefully clear enough :
Code:
= Install =
1. Extract the zip file to a folder in web space (visible to the web server).
2. If you're doing a first-time install, copy config_local.php.example to config_local.php
3. Edit config_local.php to match your config.
4. If needed add other configuration item from config_default.php
If you choose to put your Calibre directory inside your web directory then you
will have to edit /etc/nginx/mime.types to add this line :
application/epub+zip epub;
So config_local.php should be in the directory where COPS is installed (the one with index.php and feed.php)
English is not my main language so if you have some idea about explaining it better I'm all ears.