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Sorry but I don't understand what question you posed to M. Lahmi. You have the hours of operation. And the Lahmi pharmacy is listed on the French government Santé site here as providing the service you need.
https://www.sante.fr/pharmacie-dofficine/roissy-en-france/pharmacie-lahmi
Grande Pharmacie Lyon Saint Nizier
not a long walk from some of the more important train stations
It explicitly offers "getting a vaccine equivalency health pass"
A US state app will get you into most places in France, but not 100%. If other plans to get I to the French system go awry, it'll keep you from starving.
I have a friend who just did this in France. His time in the pharmacy was under 20 minutes. It was mid-day.
BTW, my airline advised me not to waste time researching this now, but to wait until 30 days before my travel starts. I understand why it's hard not to.
This site is run by Ivar at in Santiago de Compostela.
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