This is optional, and primarily for advanced users.
For those who are already friends with Composer, everything will be clear just by looking at composer.json file in install root.
Also, by overwriting this file on every Zero One update you will always know what version of the Zero One theme you have, and what is the version of some plugins. Unfortunately, not all plugins have Composer support so it is not a complete list.
We don't recommend updating Zero One using PHP Composer, for reasons listed below.
Zero One has partial PHP support:
Because we don't recommend updating Kirby and plugins to new versions before we test new versions first and create compatibility changes if needed. That way the risk of unintended consequences are minimal
Some Zero One plugins are modified versions of original plugins, and shouldn't be ever updated through PHP Composer, for example:
Kirby Form Block Suite
Plugins we left in the composer.json file didn't cause issues so far.
Why use Composer at all? Well, primarily to update Kirby and plugins easier, and to track their versions. And later when you are comfortable with it, you can use it to add more project dependencies/plugins, just by updating composer.json file.
Choose an option depending on what your system is https://getcomposer.org/download/ and install it.
Go to your local install root, run your terminal there, and run the next command
It will add a new vendor folder to your install root, and add some dependencies in it. It will also update Kirby and some plugins to the required versions. Learn more at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies
After that run command
It will update everything to match the versions in composer.json file. Learn more at https://getcomposer.org/doc/01-basic-usage.md#updating-dependencies-to-their-latest-versions
And that's about it.
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