technically its quite simple: space to enter code, enter to run code, there are 10 variables and the 10th variable is used for jumping. code: + to increment current variable by 1, x to increment it by 2, - to decrement it by 1, / to decrement it by 2, = to add the current variable to output, < to go to the next variable, and o to jump to the instruction number on variable number 10.
to debug: the pointer is zero indexed you can hold s while running your code for slow mode