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Crun: Fully featured OCI runtime and C library for running containers

github.com Software & code Software projects Software engineering Candidate
Screenshot of github.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 4 calendar years, with breakout response in 2 of them.

submissions
4
submitters
4
observed span
2021–2025
peak thread · 49 comments
126 pts
latest 20+ return · 2023-06-04
109 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

In case anyone is wondering if this signals a shift away from Go in container infrastructure, I don't think so. Docker, Kubernetes, Buildah and Podman are mostly Go code and I don't think there's much intent to change that. I suspect the conclusion (that Go is not ideal for this kind of low level component) is accurate. OTOH, I wish it could be a memory-safe language instead of C. I can only assume there is some decent reason why Rust…

jchw·126-point thread·

systemd has nspawn, often overlooked ion the container discussion. https://wiki.archlinux.org/title/systemd-nspawn "systemd-nspawn is like the chroot command, but it is a chroot on steroids. systemd-nspawn may be used to run a command or OS in a light-weight namespace container. It is more powerful than chroot since it fully virtualizes the file system hierarchy, as well as the process tree, the various IPC subsystems and the host and domain name. "

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
242

reference only — not used in Hall rules or ranking

Total comments
94

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2021-01-31Crun: Fully featured OCI runtime and C library for running containersFirst breakout · Best threadharporoeder12645
2022-10-31cruntosh20
2023-06-04Crun: Fast and lightweight OCI runtime and C library for running containersLatest 20+ point returnnateb202210949
2025-01-05Crun – A fast and lightweight featured OCI runtimema5ter50