On the server, fnm isn't installed since system nodejs is used instead.
The zsh-fnm plugin's own fallback silently curl-installs fnm when missing,
and its --use-on-cd hook then prompts on every cd since no default version
is fnm-managed there. Gate the plugin to Darwin only.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G3jcSVn51hiw58f7jPWrpN
