Advanced topics

Pages here cover packaging, images, checkpoints, tokenizer tarballs, and running several operations inside one stage.

• Code Upload
• Docker Support
• Checkpoints (model files)
• Tokenizer artifacts (tarball uploads)
• Multiple operations in one stage

Guides

Page	What it covers
Code upload	Tar layout, upload_modules, upload_paths, wrappers
Docker	docker_image, registry auth, GPU images
Checkpoints	Single-file model upload + mount
Tokenizer artifact	Tarball upload + env vars for processor trees
Multiple operations	Several run_* calls in one run()

Before you read

• Pipelines and stages

• Configuration

• Operations

When these pages matter

Topic	Typical trigger
Code upload	Any stage with src/ in prod
Docker	Import errors for torch, CUDA, or system libs on workers
Checkpoints	ML inference map jobs needing a .pt / .bin
Tokenizer tarball	NLP models needing tokenizer.json plus vocab dirs
Multiple operations	One stage that maps then validates without splitting stages

See also

• Operations index

• Troubleshooting