Redstone Quill is a fork of the abandoned Redstone Pen, only adding the quill item. More features and integrations are planned; it currently has Jade integration, showing the power level of the Redstone Tracks.
From the original description:
Redstone Quill
Craft and use it to draw or remove thin Redstone Tracks.
Multiple independent tracks through one block space are possible.
The Redstone Quill uses Redstone dust directly from your inventory.
Doesn't destroy blocks when left-clicking, except blocks with no hardness (like grass, repeaters, or comparators).