What is everyone's controller of choice for Pico8?

I've used an 8BitDo SN30 Pro+ and a Switch NES pad. They're great, but as the buttons in the HUD are labelled as X and O, like a Playstation controller, they're not positioned in the right place compared to a Playstation controller. I wish I knew how to flip these as I discover that games like Bubble Bobble, B is jump, and A is blow bubbles on my Switch NES controller.

Still, what kind of controllers do you guys use? And do you know how to flip the buttons for controllers?

There is a very active debate about button layout! We don’t know if they are XO or OX, and there are strong arguments on both sides. I usually play with an imitation super nes usb controller, with BA being OX, or when using keyboard I use CV keys to get OX. On my pocket go 2 (emulation handheld), I think the mapping is XO. Some games let you switch keys using the pause menu. In pico-8 you can also run KEYCONFIG to change key mapping.

But keyconfig only changes the keyboard board keys right?

Is there a way to swap/define controller buttons?

There isn’t, which is why some games let you switch with a custom menu entry.

I actually just recently got an 8BitDo SN30 Pro gamepad to replace my wireless XBox 360 controller, which wasn't syncing with the receiver - I find the D-pad very stiff but otherwise I'm digging it. I always used keyboard before, but now that I have a wired controller, I can just leave it always plugged in and grab it whenever I'm playing an action-y game*.

(* Celeste Classic.)