"And blood-black nothingness began to spin. A system of cells interlinked within cells interlinked within cells interlinked within one stem."

Instructions:

Three custom nodes, all are important: Orchestrator to toggle different phases. Wildcards to use in my prompts and retain them with later phases (reference those PNG files to see how I use them). And Show Text to see the final prompt after a wildcard. If you are new to ComfyUI, grab the Custom Node Manager bat off github to make this install easier.

Toggle which Nexus model you want in the Tyrell Corporation window:

Nexus-6: Replicants with physical and mental superiority but short lifespans. This is your starting point. Write a prompt, change the Seed to Randomize, and Run (Instant) to make a bunch of images, until you find one you like. Since a lot of people don't know this: You can drag and drop a PNG image you made onto the ComfyUI window to restore it. This is crucial to how I evolve a 6 into a Nexus-9.

Nexus-7 CFG: Replicants born with memories. Adjust the values based on where you started with Nexus-6. So a default CFG of 7 would use 5-6-7-8-9 values.

Nexus-8 LoRA: The final model before Tyrell Corporation went bankrupt. Oftentimes I stop here unless I really want to upscale something good. Adjust the strengths based on where you started with Nexus-6. Make sure you match what 6 was using. Supports three LoRAs, but I right-click bypass the third most of the time.

Nexus-9 Upscale: Obediant, genetically hardcoded replicants created by Wallace Corporation. Four upscale variations, all unique. Adjust the denoise percentage. 30%/55% are good starting points, and I'll go as high as 50%/65%.

Useful tips:

Okay to "Hide Links," and I recommend it. The only toggles you would need to do are VAE, which is rare. Enjoy the cleanliness!

I left my prompt palette in there.

You can enable KSampler previews in the Custom Manager "Preview Method" setting.

Plenty of additional nodes hiding under the hood. You can find them beneath Save Image nodes.