You can install Boei effortlessly on your Wix site, and you won't even need a developer.
Just grab a cup of coffee ☕️, and you can do the installation in 5-mins yourself.
Create a Boei account if you still need to get one. You can open it for free.
When you create a new account, you will immediately see the new widget that was created for you. (Otherwise, you must create a new widget.)
This is the widget screen that you are looking for:
Click on "Step 3 Install on your site" and then click "copy" on the first box.
This code is linked to your domain in Boei. Each domain has its own code.
Open Wix and go to Settings -> Custom Code.
Note that Wix does not allow code scripts on all account types; you may need to upgrade.
Click the "Apply" button in Wix.
Congrats, you are done!