Despite the high caliber of our students, the recurring Programming Language Design Seminar at UCLA did not consistently generate the kind of output we had hoped for. One issue was that students lacked the PL prototyping chops required to do meaningful work in such a short time — 10 weeks fly by when you’re having fun. Last year we created a new class to address this problem. Thanks in part to a novel framework that leverages live programming to minimize unnecessary friction and give students “instant gratification” when possible, the new class was a great success and turned out to be much more popular than we anticipated. In this talk, I will introduce our framework and show how it helped make the material in our class more accessible to the students.