Cookies
This site sets no cookies. Not one, not first-party, not for analytics, not for anything.
What it does remember
Nothing. There is no setting to store: the site is one dark theme, with no switch and nothing read from your machine.
Why there is no banner
A banner asks permission to do something. There is nothing here to ask permission for, and a consent box on a site that tracks nobody is just another thing to click.
The software
A FOSSCast instance sets one cookie, for whoever signs in to the dashboard, so the next page knows it is still them. Listeners are set no cookie at all: the public pages and the feed need none, and counting a download does not require knowing who asked.