Is there any particular reason for choosing a .fr domain name for this project ?

According to Wikipedia [0] the .fr ccTLD is limited to European Union residents (+ Switzerland, Norway...) and might possibly mean you have to comply with legal requirements (GDPR, mandatory information display: cookies / T&Cs... [1]) (IANAL)

[0]: https://en.wikipedia.org/wiki/.fr#Requirements

[1]: https://www.service-public.fr/professionnels-entreprises/vos...