create-chrome-ext
Yarn/NPM initialiser for building Chrome extensions.
Start by running npm init browser-ext or yarn create browser-ext.
Fill in a short questionnaire in UI to select the template and give your extension a name and start building the extension you want in the generated template using React/Preact with Styled Components or Emotion.
You can inject a frame into the page or add controls within the extension browser action button. You can also configure options for your extensions.