I used `light` on my MBP running NixOS. I got `xbacklight` working on my Dell
Precision running gLinux. It wasn't easy, and I still don't fully understand the
integration story. Thankfully I'm not alone and the documentation from the Arch
Linux came to rescue (per usual).
Separated i3/configuration since some of my devices support XFree86 keysyms
while others do not. This introduced some cascading changes.
- Removed ~/.config/i3/config from this repo. Since I will be switching between
devices semi-regularly and that file will be generated each time I switch to a
different device running an X session, I don't want the i3/config to spam my
`gst` and `gd` when I haven't changed configuration in either config.shared or
config.device.
- Update aliases, variables, etc. to point to config.shared instead of the
generated file.
- Ensure that X sessions generate the i3/config file.
- Ensure that i3 reload and restart command generate the i3/config file.
