OK, day 2 - I'm learning about JavaScript physics engines, and using pixi.js to create a game.  My game idea is for a physics based space fleet strategy/2d action top-down scroller, reminiscent of Deimos Rising, with strategy and commerce aspects (think starlancer and Freelancer).  Some challenges are mainly in the realm of cross-platform/device development.  Maintaining keyboard support and touch in one code base is already top of mind.  Any comments on how you've solved this challenge?  Getting artwork into the workspace and workflow is another, since I'm developing the full stack.