DevPorts gives runaway Mac dev servers a stop button

Field notes

The app groups local processes by project rather than presenting a raw list of PIDs. Its examples distinguish listening servers from background workers and show a process tree in which a Next.js server, pnpm wrapper, and build worker can be stopped together while a sibling API remains running. The page also describes a command-line mode, with --list for server details and --stop <pid> using the same stop path as the menu-bar interface.