Polyglot

Multi programming language container image built for interactive development environments like:

• Coder
• GitHub Codespaces
• JupyterLab
• GitLab
• etc.

NOTE: This image is large, around 3.5GB in total. This makes it far too big for most large scale uses. But in small scale it seems to work quite well despite its size.

The Dockerfile is built with several size and speed optimizations:

• BuildKit cache mounts on /var/cache/apt, /var/lib/apt, and /root/.cache/pip so repeated builds skip re-downloading packages and pip wheels (cached rebuilds with no Dockerfile changes take ~1–2 seconds).
• Rust is installed with --profile minimal and only clippy + rustfmt are added back, dropping the ~700MB rust-docs component.
• Docker is the CLI + buildx + compose plugins from Docker's official apt repo only — the daemon and containerd are intentionally omitted (~600MB savings); typical use is to mount the host's docker socket into the container.
• Java uses the highest openjdk-N-jdk-headless available (no Swing/AWT, ~200MB savings).
• .NET installs the SDK only — the SDK already ships with the matching runtime, so the runtime package is redundant.
• Go's bundled doc/, test/, and api/ directories are stripped after install (~100MB savings).

Base Image

This image is based on Ubuntu 24.04 LTS (Noble Numbat) — the only version that is explicitly pinned in the Dockerfile. All other tools are resolved dynamically on every build (see below).

Included Languages & Tools

No tool versions are pinned in the Dockerfile. Every make build resolves and installs the latest available release of each language and tool from upstream, so a freshly built image is always current. The Docker GitHub Actions workflow also runs on a weekly schedule to republish the image with the newest versions even when nothing has been committed.

How "latest" is determined for each tool:

Tool	How the latest version is resolved at build time
Go	Queries https://go.dev/VERSION?m=text for the current stable
nvm	Queries the GitHub releases API for nvm-sh/nvm
Node.js	nvm install --lts (current LTS line)
Java	Highest openjdk-N-jdk-headless available in the Ubuntu apt repos
.NET	Highest dotnet-sdk-X.Y available in the Ubuntu apt repos (SDK only; bundles its own runtime)
Python	python3 from the Ubuntu apt repos
Ruby	ruby-full from the Ubuntu apt repos
Rust	rustup (--profile minimal + clippy + rustfmt)
Docker	docker-ce-cli, docker-buildx-plugin, docker-compose-plugin from Docker's official apt repo
poetry / pipenv / pipx	Latest from PyPI via pip
Claude Code (claude)	Anthropic's official installer at https://claude.ai/install.sh
Antigravity CLI (agy)	Google's official installer at https://antigravity.google/cli/install.sh
Opencode (opencode)	Official installer at https://opencode.ai/install

The table below is auto-regenerated by make build and reflects the versions that were actually resolved during the most recent build of this image.

Language Ecosystem	Version	Included Tools
Node	24.16.0	nvm, npm
Python	3.12.3	poetry, pipenv, pipx
Java	25.0.2
Dotnet	10.0.107
GO	1.26.3
Ruby	3.2.3	rbenv, gem
Rust	1.95.0
Docker	29.5.2

Agentic AI coding tools

The image also bundles several agentic AI coding CLIs. Each is installed from its official upstream installer script, so every build pulls the newest release.

Tool	Invoke as	Installer
Claude Code	claude	curl -fsSL https://claude.ai/install.sh | bash
Antigravity CLI	agy	curl -fsSL https://antigravity.google/cli/install.sh | bash
Opencode	opencode	curl -fsSL https://opencode.ai/install | bash

Build Instructions

Prerequisites

• You are running in a unix-like environment (Linux, MacOS)
• Docker Desktop

Build

Builds the image. Each invocation pulls the latest available version of every tool listed above and then refreshes the version table in this README.md to match.

make build

Shell

Starts a container form this image and drops you into a shell.

make shell

Publish

Attempts to build then publish the image to Docker Hub.

make publish