How to test a custom component?

Hey,

I have created a new python custom component (config/custom_components/mycalendar) with a __init__.py and manifest.json but how can I test it without reboot my hass.io? (my last modification has crashed my system…)

Thanks

You can’t. Make a virtual machine with a dev build of home assistant. Test your stuff there. Don’t test in your version that runs your house.