octobercms/october ? reverse-engineered prompt

Build me a self hosted CMS platform for making websites and managing content, something like October CMS, with a clean admin area, page editing, themes, plugins, and a simple setup flow for local development and production. I want it to feel easy for developers and not bloated, with a Laravel based PHP codebase, working database install, basic user login, content management, and a starter demo site so I can see it working right away.

Please make sure the project runs cleanly from the command line, has sensible default configuration, and includes the important pieces for development like tests, docs, and a straightforward way to add custom plugins and themes. If you need to check current framework docs or best practices online, go ahead and do that.