As a Minnesotan, I, at least, welcome you. :)
I’ve had occasional SAD struggles, also. While there are purpose marketed lighting for this, FWIW, I found an off the shelf plant grow light from amazon for a couple hours in the evening while I was otherwise doing computer work helped me.
Good luck!
Ditto – I’ve been keeping a central to me git repo for my settings for years. Any new machine I’m on ‘git clone ; ./settings/setup.sh’, then my pull’d .profile does a git pull on login.