Install CodeTweak

Chrome / Chromium

bash

npm install
npm run build:chrome

Then:

Open chrome://extensions.
Turn on Developer mode.
Click Load unpacked.
Select build/chrome.
Open the CodeTweak entry, click Details, and turn on Allow user scripts. Without this, Chrome blocks all userscript registration and the popup and dashboard show a red "User scripts are disabled" banner.

Update after code changes

bash

npm run build:chrome

Then reload the extension from the browser extension page.

Quick install check

Popup opens.
Dashboard opens.
You can create and save a script.