Yes, but it is not recommended. If you do you will be placed in a team that has a half-built app. You will then be expected to learn everything about programming for that platform (Android, iOS, Meteor, ASP.net, etc), git, github, and the existing codebase, and start making code contributions by the end of January. Everyone in 492 must make significant code contributions, as evidenced in their git log, or will fail the class. If you still want to do it, discuss it with your advisor. If your advisor approves then fill out the prereq waiver request form.