Plugins are distributed officially through the [decky-plugin-database](https://github.com/SteamDeckHomebrew/decky-plugin-database) via usage of submodules and PRs.
If you wish to distribute your plugin another way then you will need to build and bundle the plugin as a zip file.
Here users can install the zip file from a URL in the settings menu, they will be warned that the plugin is not verified via hash.