Tool Profile

Z-Jail

A 130 KB Linux sandbox for CI and code evaluation.

At a glance:

First seen:2026-07-01

Last seen:2026-07-01

Sightings:1

Source:github.com

What it is

A 130 KB Linux sandbox for CI and code evaluation.

Why developers recommend it

Commenters zeroed in on its syscall allowlist and security use cases.

Hacker News evidence

2026-07-01

Replies debated how strict it is, whether security code can be readable, and whether CI runners need such tight isolation.

Show HN: Z-Jail – A 130 KB Linux sandbox-C99 with 7 defense layers and zero deps