I created 2 simple Chrome extensions for SFCC for spoofing times and promotions on the frontend of a SFCC dev or staging website to be used by the Boohoo trading teams.
One version appends spoofing parameters onto the url and refreshes the page, the other allows the user to build a preview url, then copy to their clipboard.
https://chrome.google.com/webstore/detail/sfcc-site-preview/nipdgmoclflgjombpjcmjemmocnibopc
https://chrome.google.com/webstore/detail/sfcc-site-preview-copy-to/eolgapdadmpickciolnepchlncpfkdbj
Check out the past companies I have worked for.