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Apptainer vs containerd

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Apptainercontainerd
LanguageGoGo
LicenceOtherApache-2.0
Stars2k21k
Latestv1.5.5v2.4.2
Last push2026-11-092026-11-11
Release cadenceabout 30 days between releasesabout 1 day between releases
Active contributors14 commit authors on the default branch in the last 90 days38 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Docker Engine (Moby). Alternatives to Docker Engine (Moby) →

    PartialApptainerRuns containers without root and without a daemon, built for HPC with single-file SIF images.

    PartialcontainerdThe runtime Docker itself runs on, without image builds or the Docker CLI; driven by Kubernetes or nerdctl.