Motorway 0x8

Motorway 0x8 is an eight-lane off-ramp from agilly1989's ComfyUI_agilly1989_motorway pack. It pulls up to eight keyed values off the MOTORWAY 🚌💨 bus in one node, which is a lot of lanes - you should have a good reason.

Quick context: this pack is a key-value data bus ("pipe") for ComfyUI. MotorwayStart creates the bus, Nx0 on-ramps store values under string keys, and 0xN ramps pull them out. It's the same wire-reduction instinct as rgthree's Context nodes, but as an any-typed key-value bag.

How it works

The mechanism is uniform across the family: bus in, _key widgets name what to pull, ANY (A)–ANY (H) (type *) carry the values out, and the cloned bus continues on the MOTORWAY 🚌💨 output. Keys are exact strings hashed with SHA-256; the bus is cloned per hop so nothing mutates in place; duplicate writes overwrite.

Eight outputs from one node is where the design starts to groan visually - that's a wide, tall ramp in your graph. It's genuinely there for the odd step that consumes a large bundle (multi-model comparisons, big img2img passes), not for everyday use.

Inputs and outputs that matter

• MOTORWAY 🚌💨 (required) - the bus.
• ANY_(A)_key … ANY_(H)_key (optional) - the eight keys.
• Outputs: MOTORWAY 🚌💨 plus ANY (A)–ANY (H).

Installing

cd ComfyUI/custom_nodes
git clone https://github.com/agilly1989/ComfyUI_agilly1989_motorway

or ComfyUI Manager → "ComfyUI_agilly1989_motorway", then restart. Pure Python, no extra pip packages, no model downloads.

Where people get burned

• 'MotorwayClass' object has no attribute 'hash_' - a pull key isn't on the bus. Exact strings, so check the write side.
• Legibility. Eight unlabeled-ish outputs is a maintenance headache; consider a comment node or a narrower split.
• Beta. The README opens with the beta warning and flows break between releases. Pin the version if a workflow depends on this.

If you routinely need 0x8, you may be fighting the tool's shape instead of using it - but for that one monster step, it works exactly as advertised.