An extension of FubarDev's portable cross-platform FTP server to add support for restricting access to certain files or directories.
The server is configurable by placing a settings.json file in its working directory. All available settings can be are
the properties of the Settings class.
To use the server, create and configure a settings.json file to your liking, and start the server. Create new users with the adduser command, paste the generated user JSON to the users.json file and restart the server.