I'm currently playing Spiral Knights with a single stick on my gamepad. It feels pretty tactile and retro, and it's not too hard adjusting to it and playing at about the same level of efficiency as I would with two sticks. Despite being forced into the control scheme through a faulty right stick, I would, if possible, like to continue using this playstyle onward. Moving and aiming with the same stick, however, presents a few limitations.
While there is already a button for disabling aiming, allowing me to strafe sideways and backwards while concentrating fire in one direction, there is no button for disabling movement, allowing me to aim without moving. This can be crucial if I'm close to hazards or attacking enemies, and I'd like to aim in the direction of said hazard or enemy. Such a button would also allow for precision walking, with the player tapping the button to adjust movement speed to their preferred pace, crucial in bullet-heavy scenarios.
Also, a crosshair for people not using mice would be pretty cool.
This game is specifically made for PCs only, and not on other platforms. All third party software or hardware for modification of the gameplay of this game is on your own accord, the game developers are not responsible for any problems you faced with your modified game.
Though not specified in the ToS, you will not be provided with any reimbursement for any problems you faced, especially if it is self-imposed. You are responsible for your personal issues, especially with software or tools that are not being supported by the game itself.
Basically saying, you should try getting a new controller, not ask for OOO to make something that SK itself does not support. A mouse and keyboard has been doing a fine job preventing you from walking onto hazards.