Thanks so much for reaching out!
Controller only for the moment. Something I'm looking to rectify for V1.5. However, there are a couple of other options you could try:
1) People have reported the DS4Windows has worked well for them if they don't have an XBox Controller available. I have been testing progress on the next build with DS4Windows, and it seems to work well for me too. If you have a non-XBox controller handy this might be a good option!
2) You can sideload the game into Steam. I'm pretty sure you'd then be able to map controls to your keyboard.