These over the top services handle node discovery and meshing for you, instead of you having to feed configurations manually down to each device you want to hook up to wireguard.
Laser leveling is very much a thing, I can't speak to grading for construction, but I have several family friends who use it extensively for agricultural fields in California.
I grabbed a USB BluRay player, which happens to work great as a CD player/ripper as well.
Thrift shops, library shops, and even second hand "media" shops are everywhere and completely drowning in CDs. (DVDs too but that's another story)
For a couple bucks, you can go grab an armload of CDs, rip them, play them whatever, and donate them back or resell them, get yourself some random seeds for music discovery.
Convenience features etc