bxl-forever
Added, thanks.
https://www.openstreetmap.org/node/9223932829

There are two things I couldn’t determine:
1) If the food they sell is something special (e.g. bio, fair trade…).  We have tags for that.
2) It looks like people must be a member of their association to be allowed to shop here.  (Partners and families can use it though.)  It would be a little weird to add access=customers to a shop.  If you feel it’s worth adding this and if you can find the right tags, feel free, of course.