Ensure `--watch` flag is working on linux

[MicaiahReid]

See this comment and the remaining thread - would be good to get some validation on if this feature is working on linux

[lgalabru]

@vict0rcarvalh0 I can confirm that --watch is working reliably on macOs

[vict0rcarvalh0]

@lgalabru Nice! Here on Fedora is not, already started working on that