The solar vibes are kicking in again 
Expanding on my previous Off-grid desk. Venus Pi, temp control, more lights and USB.
Soon moving out into the shed to build a larger off-grid system for my house.
From this exercise I learned a lot about solar, power, electricity and the lot.
Cute setup. Do you have a MRBF or Class T fuse at the battery positive terminal under the desk top, before the switch?
A few points to your desk.
While wood is to a degree heat resistant, its a subpar base material to mount electric stuff onto. Heat resistant and non-flammable would be better, even more so if this is permanently installed in a living space. Theres reasons why electrical stuff is mounted in plastic or metal cabinets.
Since the AC output of the inverter is used to power multiple devices, you should consider using an RCD on the inverter output (might even be required by your local electrical code. For example, im allowed to power a single device directly plugged into the inverter without an RCD, but as soon as extension cords or multiple devices are used an RCD is mandatory) and connecting the inverters earth point to the buildings earthing system. If this earthing is missing and one of the devices that is getting powered from the inverter shows an isolation defect and contacts the buildings earthing system, everything on that desk can show full AC voltage compared to the buildings earthing.