Singularity has been renamed to Apptainer as part of us moving the project to the Linux Foundation. This repo has been persisted as a snapshot right before the changes.

Apptainer: Application containers for Linux

Linux-native "fake root" for implementing rootless containers

umoci modifies Open Container images

rootless OCI container runtime with ptrace hacks (No root privileges nor SUID binaries (e.g. newuidmap) are required!)

fuse-overlayfs plugin for rootless containerd on old Linux (not needed on modern Linux)

rootless runc-based container engine - deprecated in favour of podman

HashiCorp Nomad driver plugin - Singularity

Protobuf descriptions for rootless containers purposes.

slirp4netns implementation with port forwarding and IPv6 support using gvisor/netstack (forked from Cloudflare)

Koble is a network emulation tool