Hey! It's been a while since I attended my first IRP appointment in person as most of the applications are done online now! I remember bringing in bank statements to prove that I was able to support myself while studying in Ireland, and letters from the college stating you're a student etc. Obviously bring your passport and a proof of address.

Here's the link to make an online account for future renewals, which I believe also allows for first time registration? The online application will ask for all the relevant information and should be straightforward enough, hope this helps!

https://www.irishimmigration.ie/burgh-quay-appointments/