Turn off vibration for local notification?

Is there any way to do that?

Depends on how you send local notifications. Plugin? Link?

using this:

                id: 0,
                text: 'something',
                every: 'minute',
                sound: null

so. is there any way?

Probably not right now:

You can follow the links from here, build your own fork of the repo and merge this functionality in.