Install Plugins
Installing plugins on Discourse is slightly more cumbersome than other PHP forums. The specific operation is to modify the containers/app.yml file in the installation directory (/var/discourse), add the list of plugins you wish to install after the ## Plugins go here section, one per line.
Once you have finished, save the file and run ./launcher rebuild app to rebuild Discourse.
Update Plugins
There are two ways to update plugins. One is to run ./launcher rebuild app to rebuild Discourse, which will automatically update all plugins to their latest versions. The other is to perform an online update via the backend upgrade page (/admin/update). You may choose either method.
Uninstall Plugins
The steps to uninstall plugins are the reverse of installing plugins. Modify the plugin list in the containers/app.yml file, remove the unwanted plugins, then rebuild Discourse. (Uninstalling plugins will not clear the various data that the plugins leave behind in the database, so please carefully consider before installing plugins.)

