The sunlit village on Coppelius where Bruce Maddox and Altan Inigo Soong created a community of synthetic people, and where Picard died and was restored in 2399.
Coppelius Station is the settlement on the fourth planet of the Ghulion system where Bruce Maddox and Altan Inigo Soong continued their work after the Federation banned synthetic life. It appears in the two parts of Et in Arcadia Ego, which close the first season of Picard. Its inhabitants are androids made in matched pairs, among them Soji's double Sutra, Arcana and Saga.
Picard arrives with Soji aboard La Sirena, just ahead of a Romulan fleet intent on wiping the synths out. Sutra persuades the community to build a beacon that will summon a powerful alliance of synthetic beings, and Soji takes charge of it.
Picard's stand in orbit convinces Soji to shut the beacon down. He dies soon after of his brain condition, and Soong and Jurati transfer his mind into a synthetic body built at the station.