Hi, mate, I'm not a pumper but here's how it works. On mdi, we've got basal and bolus, and the basal is just a bolus insulin which has been chemically tweaked to slow it down so it gets absorbed gradually over a much longer period, about 16 to 24 hrs, instead of the quickish 3 to 5 hrs that bolus does.
With pumps, they just use bolus insulin like Novo or Fiasp, but feed it in very slowly, in small amounts so it ends up having the same overall effect as a basal, to provide a gradual background cover, and then you'll occasionaly tell it to fire in a lot more if you need a bolus for a meal.
You've basically just got bolus insulin in the pump, novo or whatever, but it does the two roles, basal and bolus, slow steady delivery at small amounts as background basal cover, and a quick hit as bolus for meals.