This is a feature/bug tracker, not a support forum.
The forum is at https://compo.sr/forum
As for the index page, well typically it is just whatever you configured your base URL to be. That is assuming the web server is configured to make index.php an index page.
The forum is at https://compo.sr/forum
As for the index page, well typically it is just whatever you configured your base URL to be. That is assuming the web server is configured to make index.php an index page.