In December 2023, he won the golden medal during Pacific Games Sol 2023 with the selection A by beating Vanuatu 1-0 and Salomons Island 2-2 (9-8) in front of their public for the final win.
At that time he was introduced to officials of the New Caledonian Football Federation as the national team was preparing for 2022 FIFA World Cup qualification in Metropolitan France.
After several weeks of discussions, Sidaner was named New Caledonia's head coach in late August 2022, ending his eleven-year term at Nantes.
[5] He went to work immediately, scouting a Coupe de Calédonie match between AS Lössi and CO Hmelek the day after arriving in the country.
Despite having only one day to train and arriving in Vanuatu an hour before kickoff, New Caledonia suffered only a slim 0–1 defeat.