[Feature] Add a flex recipe

[kira0269]

Hi !

I started to use your bundle (thanks a lot for your work btw !), and I noticed that a flex recipe could be really useful. This recipe would:

• create the default Parameter entity
• create the yaml configuration file

Thanks again !

[BrownSim]

Hi !

we're a bit busy at the moment, so it's not planned yet, but if you want, you can suggest a PR