What's in the SOSS? An OpenSSF Podcast

Packaging, Transferring, and Deploying Software in Air-Gapped Environments with Zarf

May 5, 2026·19 min
Episode Description from the Publisher

Host Sally Cooper is joined by Brandt Keller, a staff software engineer at Defense Unicorns and maintainer of the OpenSSF sandbox project, Zarf. Brandt discusses Zarf's origins as a tool designed to reliably package, transfer, and deploy software components (like container images and Helm charts) specifically for critical, air-gapped environments that lack internet connectivity. The conversation explores Zarf's evolution, highlighting its current role in introducing security gates, improving ...

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