This may not be the place for this, but do you have any recommendations for learning front end development in that way? I've done some front end for my current job, but frankly I'm an amateur and I want to be able to market myself as full stack. Do I just glue a tab with Mozilla docs to my browser and make sites in my spare time? I'm asking you in particular because I value core competencies and what you're looking for what I want to achieve.