Esbuild watcher process esbuild-darwin-arm64 will be terminated normally after mix phx.server stopped. While tailwind watcher process tailwind-macos-arm64 survived, and its parent process became null. I thought it is kind of unexpected.

Erlang/OTP 25 [erts-13.0.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit] [dtrace]

Elixir 1.13.4 (compiled with Erlang/OTP 24)

{:phoenix, "~> 1.6.10"}