...
The link for the environment will be formatted like https://~CAS~2025playground.prelaunch.liaisoncas.com/applicant-ux/#/login
So, for Vet: https://vmcas2025playground.prelaunch.liaisoncas.com/applicant-ux/#/login
Once the application has been started, it can be retrieved via Postman.
Note that retrieving an unsubmitted application will be quite unsatisfying--the available fields are quite restricted.