Custom code works on all paid plans (except for the archived Creator plan). With a Free plan, you can see working code in Preview mode but not in a published project.
CozyCal is an online scheduling tool. To connect it to your Readymag project, please follow these steps:
- Sign up with CozyCal and go to Settings → Website setup → Install CozyCal.
- Click I'll install it myself → Javascript → Copy code.
- Open your Readymag project and add a Code widget. Paste the code into the Widget code section and click Save & Close.
You might need to verify your code with your domain name.
To learn more, please refer to the official CozyCal documentation.