I'll stay in Krakow for a few days next month and my hotel is a bit far from my work place.
I plan to use the buses but it looks uncertain to me, from what I have found that some bus stops are equipped with tickets machines, but I do not know which ones. I have also seen that a company (MPK) seems to provide tickets for the area, but I'm not sure it's compatible with the regular buses.
Is there a way to pre-order tickets or points to buy it by cash?