In RepU, open your widget, choose light or dark and left or right, then click Copy next to the embed snippet.
In Showit, open Site Settings, then the Integrations tab. Click Add Custom Code, name it RepU, choose Body, paste your code, and select the Site Canvas Sets to use it on.
Need more detail? See the official Showit guide.
Click Publish, then open your live site to see your Google reviews.
Check your live site in a private window, not the editor or preview. A domain-locked widget only shows on your own domain.
Check the custom code applies to the Site Canvas Sets your pages use, and that you chose Body.