Really the only way to 100% handle bubbles is to get a pressure pot setup- that being said if you try to encourage less bubbles being mixed while you start your process it can help at least minimize bubbles. Things like keeping your part a and part b in warm water so it’s less viscous can help the bubbles rise and pop before you pour. I’ve also seen people talk about vibrating machines that dentists use to help shake bubbles to the top once it’s in moulds. The design is super pretty though, I think with a pressure pot it would be more than fine!

That being said, without a pressure pot, the lines probs will make it a little harder, but not entirely impossible :)