Help I bought without thinking

hello world of op

So, I bought the Pocket Operator 16 because the price was so good and I have had 2 beers. But it in a drawer and found it yesterday after being lost for a while, got it all together - but now what?

I have a PC with FL studio with two monitors connected to a soundcard ESI something (https://www.esi-audio.com/products/u22xt/)

Will I even be able to make it work? And how do I connect it?
I’ve been trying to find info but it’s a jungle with words and acronyms I’ve never heard of. I’m good with tech but this got me confused.

Can someone please help me get started in any way? A helpfull answer or a link to something, everything will help!

Space love <3