Quite dangerous to leave this without an enclosure, since the power supply is on the same PCB, several of the components and solder points carry mains voltage.

I'm surprised an outlet as high profile as Make don't at least recommend one, or have any of the usual warnings about high voltage.

On a side note, it's no mean feat integrating large through hole components and tiny SMD parts onto the one PCB, normally power supplies are wave soldered while SMD parts need reflow instead, and hence TVs and the like use seperate PCBs. Pin-in-paste[1] is possible, but only with some parts, so maybe they used automated selective soldering[2] instead?

[1] https://www.7pcb.com/blog/the-application-of-the-pin-in-past...

[2] https://www.nordson.com/en/divisions/select/soldering-proces...