There is any "low level" tutorial?

Like how to make an ik/fk without the compounds

Thanks!

Don't know what "compounds" are but right now the best way to learn low level APEX is to use built-in components and study the APEX graph they generate.

For stuff beyond that... yeah, I think the tutorials are lacking now.

For a low-level introduction, maybe check out the Ball Rig tutorial: https://youtu.be/svV-Ovj3E60?si=SPZRXP44wt9kyPIz [youtu.be] ... Max has a whole play list of various APEX rigging tutorials if you haven't seen them before.

Another way to learn how the autorig components work is to click on the edit icon on the autorig component SOP. Its right next to the drop down for the components. This will expose the full apex script snippet for the component. Most of our pre shipped components have now been created with apex script. The button click will expose the code and you can then carefully study it or use it as a starting point for your own component

We also have it on our todo list to add mor code comments to existing components exactly for that purpose