I shouldn't be doing this given my lack of kernel experience, but I'm incorrigible. I got stuck at package installation:
$ sudo dpkg -i mbp-nvidia-bl-dkms_0.24.3_all.deb
Selecting previously deselected package mbp-nvidia-bl-dkms.
(Reading database ... 151409 files and directories currently installed.)
Unpacking mbp-nvidia-bl-dkms (from mbp-nvidia-bl-dkms_0.24.3_all.deb) ...
Setting up mbp-nvidia-bl-dkms (0.24.3) ...
No packages found matching mbp_nvidia_bl-dkms.
Need NAME, and VERSION defined
ARCH is optional
dpkg: error processing mbp-nvidia-bl-dkms (--install):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing: