For advanced modders, Psych Engine is open source. v0.6.3 includes clean, organized source code that allows developers to hardcode features if Lua isn't powerful enough. This hybrid capability (Lua + Source) makes it the most flexible engine available.
For PC users, 0.6.3 introduced better memory management. This means less "stuttering" during fast-paced songs and faster loading times for high-resolution sprites. Fnf Psych Engine 0.6.3 Pc
Playomatic Automatic Post Generator video tutorial: