Appends a raw Chromium command-line switch to the browser process for cases where you need to tweak Chromium beyond zshot’s built-in flags. Repeatable — pass it once per switch.
zshot --chromium-arg=--disable-gpu \
--chromium-arg=--js-flags=--max-old-space-size=512 \
https://example.com
Both --chromium-arg=--switch and the space form --chromium-arg --switch work. The value is passed verbatim, including any =value, and reaches the renderer and GPU child processes.
Your switches are applied last, so a switch you pass overrides zshot’s own default for that switch. This is an escape hatch with no validation: an invalid or conflicting switch can change rendering or prevent the browser from starting.