Add a new sound effect to @remotion/sfx
$npx -y skills add moizibnyousaf/marketing-cli --skill add-sfxInstalls into the current project.
Run `npx skills use "https://github.com/moizibnyousaf/marketing-cli" --skill "moizibnyousaf/marketing-cli/add-sfx"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/moizibnyousaf/marketing-cli" that are relevant to the current task. Run `npx skills add "https://github.com/moizibnyousaf/marketing-cli"` and select the relevant skills, then follow their instructions.