Self hosted instance, cannot find auth redirect uri settings

Hi all,

I'm attempting to trial Space within a very small team, self-hosted on a local machine. Everything works fine when accessing the instance on the machine itself, all users get an `unauthorized_client` error. As I understand it I have to add the public address of the server to the list of allowed redirect uris, but I've scoured the administrator settings and cannot find anywhere that will let me do this.

Any and all assistance is greatly appreciated.