With this plugin you can remove the sign-up and log-in buttons. You can change the behavior of the logout URL through the admin panel. Also when a user is not logged in, the plugin will redirect the user to this desired URL, in the plugin settings, this URL is called the "Redirect URL".
Please note that this plugin is still a work in progress.
Run in (js/forum):
npm install
gulp watch
When it is compiled, run in Flarum root:
composer update
Also, whenever you changed the source code, run php flarum cache:clear
and reload the page.
The extension is also on Packagist, so you should be able to install it using:
composer require empewoow/flarum-ext-auth-redirect