**Chamilo 2.0 is still in development stage. This installation procedure is for reference only. For a stable Chamilo, please install Chamilo 1.11.x. See the 1.11.x branch README.md for details.**
If you have it installed in a dev environment and feel like you should clean it up completely (might be necessary after changes to the database), you can do so by:
* Removing the `.env.local`
* Load the {url}/main/install/index.php script again
The database should be automatically destroyed, table by table. In some extreme cases (a previous version created a table that is not necessary anymore and creates issues), you might want to clean it completely by just dropping it, but this shouldn't be necessary most of the time.
If you are a developer and want to contribute to Chamilo in the current development branch (not stable yet),
then please follow the instructions below. Please bear in mind that the development version is NOT COMPLETE at this time,
and many features are just not working yet. This is because we are working on root components that require massive changes to the structure of the code, files and database. As such, to get a working version, you might need to completely uninstall and re-install from time to time. You've been warned.
First, apply the procedure described here: [Managing CSS and JavaScript in Chamilo](assets/README.md) (in particular, make sure you follow the given links to install all the necessary components on your computer).
Then make sure your database supports large prefixes (see [this Stack Overflow thread](https://stackoverflow.com/questions/43379717/how-to-enable-large-index-in-mariadb-10/43403017#43403017) if you use MySQL <5.7orMariaDB<10.2.2).