Where is local files directory (working directory)?

Hi, I want to access to my local file directory for storing some local files and access them through my domain,
I don’t find anything about the local file directory.
Can anyone help me?

With this solution:
https://discuss.gogs.io/t/how-to-customize-gogs-website-image-favicon/26/7
I created public folder in custom folder and I copied my files in that,
So I could access my files from my domain and my issue is solved.