How can I calculate and display an animal’s age (in years and months) on a Wix Studio CMS List Page?

I’m building a website in Wix Studio and I have a CMS collection for animals.
Each item has a date field called “geborenam” (date of birth).
On my List Page (“Tiere alle”), I want to display the calculated age of each animal in the format:

“X years, Y months”

I already have a text element inside the repeated list item where the age should appear.

My problem is:

  • Wix Studio CMS does not support calculated fields

  • I cannot get the Velo code working on the List Page

  • I am unsure how to correctly use the itemReady function in Wix Studio

  • I need the age to update dynamically based on the current date

Can someone please explain:

  1. Where exactly the Page Code is located in Wix Studio?

  2. How to correctly use the itemReady($item, itemData) function for a List Page?

  3. How to insert the birthdate (geborenam) from the CMS and convert it to age?

  4. How to output the result into my text element (ID: agetext) inside the repeated item?

Any help or a working code example for Wix Studio (not the old Wix Editor) would be greatly appreciated.

Thank you!