@idefix37 I agree that Harmonie would be a very nice addition. Two years ago windguru added the Harmonie model when I requested them. I prefer Windy's interface, but for short term precision I still switch to windguru... I'm a paying user for both.
To make things easier for you: a Dutch guy already translates the 6-hourly updates to grib(1?)-files.
Here is the explanation in dutch, with subsets and the update times:
Here are the links to the grib files (first one is all data, second is only wind)
If the links don't bring you to a download but a website instead, the bottom right links are for the full model area.
Model run Beschikbaar
00:00 UTC ± 04:00 CET
06:00 UTC ± 10:00 CET
12:00 UTC ± 16:00 CET
18:00 UTC ± 22:00 CET
For more (technical) info you can contact email@example.com (same first name, different guy)
I hope you give it a go.