- verify and fix the responsiveness of the layout to work best on mobile, because that's the best use case for the app - experiment and change the layout to the grid - sounds like a better option for this type of UI - check the styles on the buttons, they are missing something on click/press - make sure all work with the keyboard as well - make it PWA and make it fast (lazy load stuff if necessary), also make it installable - experiment with adding the PWA to google play store
