Show HN: Academa – Long-form STEM lecture videos generated by LLMs

Academa is a platform that generates long-form STEM lecture videos using LLMs, either automatically in about 25 minutes or from a library of hand-maintained content covering topics like calculus, statistics, and physics. The key innovation is treating lecture videos as maintainable source code—written as instructions for actions like drawing, writing, and narration—that can be compiled into videos and easily updated, addressing the problem that traditional video production makes corrections difficult and time-consuming.