# openai/codex-universal

Base docker image used in Codex environments

Repository: https://github.com/openai/codex-universal
Canonical: https://ross.abutalabs.com/products/codex-universal
Language: Dockerfile
License Family: other
Last push: 2026-05-02T20:28:32+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 80, release rhythm 35, longevity 34
- inputs: {"age_days": 479, "days_push": 123, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1043, forks 274 (observed 2026-08-28T04:03:21.025675+00:00)

## What it is
A reference Docker base image used in OpenAI Codex cloud environments, published to ghcr.io for local use. It ships setup scripts that install configurable language runtimes (Python, Node, Rust, Go, Swift, Ruby, PHP) via CODEX_ENV_* environment variables.

## Use cases
- reproduce the OpenAI Codex environment locally
- debug code that behaves differently in Codex cloud sandboxes
- create a multi-language dev container with pinned runtime versions
- customize a base image for Codex environments
- run a disposable sandbox with Python, Node, Rust, and Go preinstalled

## When to choose
- you develop against OpenAI Codex and want a matching local environment
- you need a ready-made Docker image with multiple configurable language toolchains
- you want to debug environment-specific issues before pushing to Codex

## When to avoid
- you need an exact replica of the Codex cloud environment - this is only an approximation
- you need a minimal production base image - it bundles many toolchains
- you require arm64 parity - the arm64 build omits OpenJDK 10 and Swift and is not officially run

## Facets
- artifact type: infra-config
- maturity: active
- function: container-runtime, configuration-management, developer-tools
- domain: developer-tools, cloud-computing
- platform: cross-platform
- tags: docker-image, openai-codex, development-environment, language-runtimes, devcontainer, containers, docker, linux

## Member repositories
- openai/codex-universal (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:21.025675+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:02:31.513616+00:00, confidence not recorded.
  - readme: https://github.com/openai/codex-universal (fetched 2026-08-28T04:03:21.025675+00:00, sha d93a1ef338b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.