A way to hide cables in other blocks, maybe as simple as right clicking a non-tile entity block onto the cable.

Sadly I don't think this is possible - the behaviour of P2P tunnels is hard-coded, so we can't add new types with custom behaviour.

That said, Plethora used to have XNet support, which does enable facades. I guess it might be worth bringing that back. It's not ideal, as you can't facade the cables/modems themselves, but a step in the right direction.

@SquidDev How about adding native compatibility of Applied Energistics P2P Tunnel? This would add the ability to have "invisible" cables via AE2 cover system without adding much complexity to Computer Craft itself.

I'd rather avoid adding a cover system directly to CC, as oh boy there's so much hidden complexity.

The cleanest thing to do is probably what we've done for wireless modems and add support for MCMultipart¹. However, there's definitely some issues here:

• Cables basically implement their own half-baked multipart system (as we have a cable and wired modem), and so some concepts don't map as well.
• The bounding box of cables changes due to neighbouring blocks.
• The block placing logic. All of it!

1: It might also be worth doing CBMP support (like CCTweaks had), but it's a lot of effort for very little gain.

In terms of working with what we've got, I often find it useful when building to use the full block modems to go through walls etc. It looks much cleaner than there being a hole in the wall for a cable to go through

but what do you do if you want to run cables in the floor and you don't have space to put them under the floor?

I think given the current state of multipart APIs, this isn't really possible. MCMP and FMP are both dead, and the only 1.15/16 API I can find is for Fabric :D:.

If there's alternative APIs available in the future I'm happy to reopen and look into this.