When you boot into the new system, you will be able to log in as the 'oem' user with the password you selected earlier; this user also has administrative privileges using 'sudo'. You will then be able to make any additional modifications you require to the system.
Ticki tsekkreḍ anagraw amaynut, ad tizmireḍ ad tkecmeḍ ɣur-s am useqdac 'oem' s wawal n uɛeddi i tferneḍ uqbel; aseqdac-agi yesɛa daɣen tisirag n unedbal s useqdec n 'sudo'. Ad tizmireḍ ad tgeḍ ibeddilen-nniḍen i tebɣiḍ i wenagraw-inek m.