In the eSIM universe, *eSIM profiles* are the virtualised content of a classic USIM (possibly with ISIM, CSIM, applets, etc.).
Let's have a look what an eSIM profile is:
* how is the data structured / organized?
* what data can be represented in it?
* how to handle features provided by eUICC, how can the eSIM profile mandate some of them?
* how does personalization of eSIM profiles work?
There will be some hands-on navigation through profiles, based on the `pySim.esim.saip` module.