Very cool!

• Any thinking about how to observe/measure the items on the wires? maybe each power pole outputs signals of what's on them?
• Any thinking about when there is a branch in wires, which direction the items go?
• Maybe the wires could have some per-item limit, and the inserters don't put more than that limit? For example, only up to one stack of an item can be on the wires; the inserter won't put more than that.

Super excited to see what is done next!

Thank you! I'm a modding beginner so I'm moved to hear you say that!

• This is forgot, that i may add it someday.
• I didn't think too much about it,
  but I tried to keep the items from going back as much as possible.
• I think the restrictions are necessary, but I have not add them yet.

Look forward to it. :)