Reference

pg_autoctl set formation number-sync-standbys(1) on Linux

The text a7dc5529c2ca, as Debian 12 (Bookworm) shipped it.

pg_autoctl set formation number-sync-standbys pg_autoctl set formation number-sync-standbys - set number_sync_standbys for a formation from the monitor

Flags it lists

pg_autoctl set formation number-sync-standbys(1) on Linux now