left/right arrow for movement (left hand), DEL (full stop) key on the number pad for dash (right hand). I use a Corsair K70 RGB Rapidfire if you wanna google how it looks.
left hand to move, w + e; n for dash, middle finger is on "o, ring on p, pinky on the enter key. i rest my right hand thumb on the board in front of the keyboard on my laptop.
im new to catch, for some reason for me the one that feels best is A and K for movement (different hands) and S and L for dash (also different hands) I guess im weird