# This Shit is Hard: Building hardened PyTorch wheels with upstream parity

DevFeed: [This Shit is Hard: Building hardened PyTorch wheels with upstream parity](<https://devfeed.tech/articles/this-shit-is-hard-building-hardened-pytorch-wheels-with-upstream-parity-13277.md>)

Original publisher: [Read original article](<https://www.chainguard.dev/unchained/this-shit-is-hard-building-hardened-pytorch-wheels-with-upstream-parity>)

Published: 2026-01-22T00:00:00Z

Content type: article

Language: en

Sources: [Chainguard: Unchained](<https://devfeed.tech/sources/chainguard-unchained.md>)

Topics: [PyTorch](<https://devfeed.tech/topics/pytorch.md>), [Dependency management](<https://devfeed.tech/topics/dependency-management.md>), [toolchain](<https://devfeed.tech/topics/toolchain.md>), [Python](<https://devfeed.tech/topics/python.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [chainguard](<https://devfeed.tech/tags/chainguard.md>), [chainguard-libraries](<https://devfeed.tech/tags/chainguard-libraries.md>), [chainguard-libraries-for-python](<https://devfeed.tech/tags/chainguard-libraries-for-python.md>), [compatibility](<https://devfeed.tech/tags/compatibility.md>), [dependency](<https://devfeed.tech/tags/dependency.md>), [python](<https://devfeed.tech/tags/python.md>), [pytorch](<https://devfeed.tech/tags/pytorch.md>), [pytorch-libraries](<https://devfeed.tech/tags/pytorch-libraries.md>), [pytorch-packages](<https://devfeed.tech/tags/pytorch-packages.md>), [toolchain](<https://devfeed.tech/tags/toolchain.md>)

## AI overview

Chainguard describes the engineering challenges of building hardened PyTorch wheels with upstream feature parity. The article covers dependency resolution, toolchain constraints, manylinux and binary compatibility, test infrastructure, and SLSA Level 2 provenance.

## Source excerpt

Learn how Chainguard tackled dependency resolution, toolchain challenges, and manylinux compatibility to deliver hardened PyTorch wheels.