Long overdue, here are the first pics for the addition build. The first two pics were taken today.

Front - sheathing done

Front Inside - blocking done

Trusses 5/12th pitch roof - I chose galvalume, polar white for maximum reflectivity and the extra 15 year warranty vs bare (unpainted) - Instead of putting the roof on purlins, I put up 1/2" plywood with felt paper for insulation, weatherproofing, and the sturdiness vs straight purlins.

Gable fan installed - I'm doing both ridge venting and soffit venting, along with gable vents and a gable fan, although the thermostat will be set at around 120-140 degrees, to kick on only when the attic is super hot. Between the polar white roof, gable venting, ridge venting, and soffit venting, hopefully the fan won't run too much.

Very early on in the project.
Well, we're around a year and a half in on the build and are probably somewhere around the halfway point. Here's what's left to do (unless I forget something):
Finish sheathing the walls, flashing the door and windows, gable venting/framing, , install windows, install siding, and door
sub-flooring - 3/4" plywood or osb. If I don't use tongue and groove, I'll use h-clips
Install soffits, soffit venting, and baffles
Insulating the attic, install ceiling, wiring, lights, projector mount, projection screen mount/wiring - I'm not sure what type of lighting I'll be using yet. Maybe recessed, maybe not.. too early to tell
Build a closet sometime after the subflooring is installed
Install electric panel
Insulating the walls, install electric plugs, wall boards
Install AC ductwork, ac registers
Somewhere in-between, hooking it to my house.
Carpeting
Insulating underneath the addition
Skirting