There's generally a residency requirement for French citizenship, but maybe they'll be willing to waive it for the Olympics. Of course, as France only has two spots, they'll have to contend against another team whose eligibility is in question, Abachkina/Thauron. She was born in Russia but moved to France as a child. Generally you can't apply for citizenship until you're 18, and her birthday is in January which might be too late. However, I'd heard that they found a workaround/made an exception, so maybe Lauriault/Le Gac will also be granted one.