I’m not 100% certain if this is possible. I know a few integrations have been made, some require VERY complex setup. But one thing I have missed from the start in HA is for the To-do lists to have expanded native capabilities for the option to say “connect” to other external services ie Google Keep, Microsoft To-Do.
Given Home assistant is a home helper, we have a kitchen dashboard, it would be amazing if there was a way for the Todo aspect to have some form of customisation setup options to link to external services and be a core part of the platform.
Maybe it wouldn’t be considered as some others develop things, but it does feel it would be a beneficial core feature, like some Devices are included as standard.