A Docker container image that contains most popular language runtimes and tools to be reused for multiple software development tasks.
This sandbox provides a pre-configured development environment with common language runtimes installed. It is designed to be AI-agnostic and can be used as a base image for various development workflows.
- Node.js 20 (via NVM) + npm + Bun + Deno
- Python (latest stable via pyenv)
- Go (latest stable)
- Rust (via rustup) + Cargo
- Java 21 LTS (Eclipse Temurin via SDKMAN)
- Kotlin (via SDKMAN)
- PHP 8.3 (via Homebrew)
- Perl (latest stable via Perlbrew)
- Ruby (latest stable via rbenv)
- Swift 6.x (latest stable)
- R (latest stable)
- .NET SDK 8.0
- Assembly (GNU Assembler, NASM, LLVM-MC, FASM)
- Lean (via elan)
- Rocq/Coq (via opam)
- CMake
- Make
- GCC/G++
- Clang/Clang++
- LLVM
- LLD Linker
- Git
- GitHub CLI (gh)
- Homebrew
The sandbox is split into modular components, allowing you to use only what you need:
JS sandbox (konard/sandbox-js)
└─ Essentials sandbox (konard/sandbox-essentials)
├─ sandbox-python (built in parallel)
├─ sandbox-go (built in parallel)
├─ sandbox-rust (built in parallel)
├─ sandbox-java (built in parallel)
├─ sandbox-kotlin (built in parallel)
├─ sandbox-ruby (built in parallel)
├─ sandbox-php (built in parallel)
├─ sandbox-perl (built in parallel)
├─ sandbox-swift (built in parallel)
├─ sandbox-lean (built in parallel)
└─ sandbox-rocq (built in parallel)
└─ Full sandbox (konard/sandbox) ← merges all via COPY --from
| Image | Description | Base Image |
|---|---|---|
konard/sandbox |
Full sandbox (all languages) | Assembled from all language images |
konard/sandbox-essentials |
Essentials (git identity tools) | Built on JS sandbox |
konard/sandbox-js |
JavaScript only | Ubuntu 24.04 |
konard/sandbox-python |
Python (pyenv) | Built on essentials |
konard/sandbox-go |
Go (latest stable) | Built on essentials |
konard/sandbox-rust |
Rust (rustup + cargo) | Built on essentials |
konard/sandbox-java |
Java 21 (SDKMAN + Temurin) | Built on essentials |
konard/sandbox-kotlin |
Kotlin (SDKMAN) | Built on essentials |
konard/sandbox-ruby |
Ruby (rbenv) | Built on essentials |
konard/sandbox-php |
PHP 8.3 (Homebrew) | Built on essentials |
konard/sandbox-perl |
Perl (Perlbrew) | Built on essentials |
konard/sandbox-swift |
Swift 6.x | Built on essentials |
konard/sandbox-lean |
Lean (elan) | Built on essentials |
konard/sandbox-rocq |
Rocq/Coq (Opam) | Built on essentials |
Each language has its own standalone install.sh and Dockerfile under ubuntu/24.04/<language>/:
| Language | Directory | Key Tools |
|---|---|---|
| JavaScript/TypeScript | ubuntu/24.04/js/ |
NVM, Node.js, Bun, Deno, npm |
| Python | ubuntu/24.04/python/ |
Pyenv, latest stable Python |
| Go | ubuntu/24.04/go/ |
Latest stable Go |
| Rust | ubuntu/24.04/rust/ |
rustup, Cargo |
| Java | ubuntu/24.04/java/ |
SDKMAN, Eclipse Temurin 21 |
| Kotlin | ubuntu/24.04/kotlin/ |
SDKMAN, Kotlin |
| .NET | ubuntu/24.04/dotnet/ |
.NET SDK 8.0 |
| R | ubuntu/24.04/r/ |
R base |
| Ruby | ubuntu/24.04/ruby/ |
rbenv, latest Ruby 3.x |
| PHP | ubuntu/24.04/php/ |
Homebrew, PHP 8.3 |
| Perl | ubuntu/24.04/perl/ |
Perlbrew, latest Perl |
| Swift | ubuntu/24.04/swift/ |
Swift 6.x |
| Lean | ubuntu/24.04/lean/ |
elan, Lean prover |
| Rocq/Coq | ubuntu/24.04/rocq/ |
Opam, Rocq prover |
| C/C++ | ubuntu/24.04/cpp/ |
CMake, Clang, LLVM, LLD |
| Assembly | ubuntu/24.04/assembly/ |
NASM, FASM (x86_64) |
Each install script can be run standalone on Ubuntu 24.04:
# Install just Go on your Ubuntu 24.04 system
curl -fsSL https://raw.githubusercontent.com/link-foundation/sandbox/main/ubuntu/24.04/go/install.sh | bash| Image | Multi-arch | AMD64 | ARM64 |
|---|---|---|---|
| Full Sandbox | konard/sandbox:latest |
latest-amd64 |
latest-arm64 |
| Essentials | konard/sandbox-essentials:latest |
latest-amd64 |
latest-arm64 |
| JS | konard/sandbox-js:latest |
latest-amd64 |
latest-arm64 |
| Image | Multi-arch | AMD64 | ARM64 |
|---|---|---|---|
| Full Sandbox | ghcr.io/link-foundation/sandbox:latest |
latest-amd64 |
latest-arm64 |
| Essentials | ghcr.io/link-foundation/sandbox-essentials:latest |
latest-amd64 |
latest-arm64 |
| JS | ghcr.io/link-foundation/sandbox-js:latest |
latest-amd64 |
latest-arm64 |
Pull multi-arch (auto-selects your platform):
docker pull konard/sandbox:latestPull specific architecture:
# AMD64
docker pull konard/sandbox:latest-amd64
# ARM64 (Apple Silicon, Raspberry Pi, etc.)
docker pull konard/sandbox:latest-arm64Pull from GHCR:
docker pull ghcr.io/link-foundation/sandbox:latestdocker run -it ghcr.io/link-foundation/sandbox:latestFROM ghcr.io/link-foundation/sandbox:latest
# Your additional setup here
COPY . /workspace
RUN npm installgit clone https://github.com/link-foundation/sandbox.git
cd sandbox
docker build -t sandbox .The image is built for both linux/amd64 and linux/arm64 architectures.
IMPORTANT: ARM64 builds MUST use native ARM64 runners.
| Architecture | Runner | Build Time |
|---|---|---|
linux/amd64 |
ubuntu-latest |
~5-10 minutes |
linux/arm64 |
ubuntu-24.04-arm (native) |
~30-60 minutes |
Native ARM64 runners provide optimal build performance for compilation-heavy workloads. Emulation would incur a 10-30x performance penalty.
For detailed analysis, see Case Study: Issue #7.
The container runs as the sandbox user with home directory at /workspace. All language runtimes are installed in user-local directories under /workspace:
- Node.js:
~/.nvm - Python:
~/.pyenv - Go:
~/.go - Rust:
~/.cargo - Java/Kotlin:
~/.sdkman - Ruby:
~/.rbenv - Swift:
~/.swift - Lean:
~/.elan - Perl:
~/.perl5 - OCaml/Rocq:
~/.opam
Last updated: 2026-03-31T00:33:25Z
Total installation size: 7189.0 MB
| Component | Category | Size (MB) |
|---|---|---|
| Swift 6.x | Runtime | 2655.24 |
| Opam + Rocq/Coq | Runtime | 926.29 |
| Rust (via rustup) | Runtime | 647.44 |
| SDKMAN + Java 21 | Runtime | 579.1 |
| .NET SDK 8.0 | Runtime | 504.93 |
| Pyenv + Python (latest) | Runtime | 388.0 |
| Perlbrew + Perl (latest) | Runtime | 364.98 |
| Go (latest) | Runtime | 281.75 |
| NVM + Node.js 20 | Runtime | 230.91 |
| Kotlin (via SDKMAN) | Runtime | 173.91 |
| rbenv + Ruby (latest) | Runtime | 163.06 |
| Deno | Runtime | 124.73 |
| R Language | Runtime | 121.14 |
| Bun | Runtime | 99.31 |
| PHP 8.3 (via Homebrew) | Runtime | 55.44 |
| Lean (via elan) | Runtime | 13.23 |
| C/C++ Tools (CMake, Clang, LLVM, LLD) | Build Tools | 58.82 |
| Assembly Tools (NASM, FASM) | Build Tools | 3.92 |
| GitLab CLI | Development Tools | 29.19 |
| glab-setup-git-identity | Development Tools | 4.36 |
| gh-setup-git-identity | Development Tools | 4.35 |
| GitHub CLI | Development Tools | 1.27 |
| Homebrew | Package Manager | 179.23 |
| Python Build Dependencies | Dependencies | 42.51 |
| Bubblewrap | Dependencies | 0.17 |
| Ruby Build Dependencies | Dependencies | 0.01 |
| Essential Tools | System | 0.75 |
Note: Sizes are measured after cleanup and may vary based on system state and package versions.
- ARCHITECTURE.md - System architecture and design decisions
- REQUIREMENTS.md - Project requirements and constraints
- docs/case-studies/ - Case studies and incident analysis
MIT License - see LICENSE for details.