@jpm @Unixbigot I have no idea if "fully passive protocol-aware auto-crossover network" is an actual thing or completely made up. Well played, have points*.
*the points, like all of us, are not redeemable
@Unixbigot @jpm This is how Hardware Touchers assert dominance. Keep proposing more and more outlandish things until someone challenges you and then you DESTROY THEM by proving it's real. Ideally both through their doubt and because you made someone aware of something cursed.
I might be projecting unhealthy software developer practices onto hardware types here.
@jpm @Unixbigot <raised hand>
It's on the to do list for the year, possibly.

Attached: 3 images I've implemented a KiCad footprint that provides an "oh fuck I got tx/rx backwards again" crossover box. Not my idea but I forget where I first saw it (I think it was here on Fedi). Fit two resistors (or solder bridges) horizontally and it's straight through; fit them vertically and it's a cross-over. https://github.com/accelerando-consulting/Kicad-Libraries/tree/master/Accelerando.pretty ETA: the name of the footprint is “Oh_Fuck”.
@Unixbigot
Previous day delivery is awesome except when you forget to make the order afterwards.
It makes forgetting to make the antipasta look like a stroll in the park.