Trigger Node Red Flow

I am new to Home Asssist and trying to understand all the terms in this world.
I manage to do a Node red flow.
As testing I started my flow with an inject Node and this works fine.
Now I would like to start my flow from a button on the UI in the Dashboard.
I have found some other topics on this subject, but as Home Assistant is developing fast I do not know if the guidelines found is the smartest way.
I would properly need some instruction on the sugested solutions.