If you wondered what kind of variables you can set for a layer, or how spacemacs configured keys to map to a layer’s keymap :
After jumping to the spacemacs camp, I felt the major hurdle was getting used to the helm layer that comes by default with spacemacs.
In particular, I have always been accustomed to C-x C-w to write a buffer to a new file, but under helm auto-completion, it seemed…