Hi, have you followed the basic setup guide?
If you are less tech savvy the docker installation might be the way to go for Piefed.
Each instance already has the capability of fully changing the logo and branding:
Federation is also controllable, you can just not federate, or block all:

As for the cloudflare tunnel, you should be able to set up an application that points to your local installation.
Finally, if you like the dev installation you set up, and want to move it to production, you can follow this guide , but I'd probably just create a new fresh instance.
