[5] On 10 June 2022, Rupert signed with the New Zealand Breakers for the 2022–23 NBL season as part of the league's Next Stars program.

[2] The Breakers had previously seen fellow Frenchmen Hugo Besson and Ousmane Dieng selected in the 2022 NBA draft.

[6] Throughout his rookie and sophomore seasons, he has been assigned several times to the Rip City Remix.

[7][8] Rupert's father, Thierry, was a EuroLeague player and captain of the French national team while his sister, Iliana, was the 12th overall pick in the 2021 WNBA draft.

His cousin, Kameron Jones, a cancer survivor, is a chemistry major at Boston University.