Polyglot Engineering Sandbox

Multi-Language Playground.

A unified space for building and testing web applications across PHP 8.3, Python 3.12, Ruby 3.3, Go, Rust, Next.js, and Java 21 under carlossilveira.dev/lab/.

Starter Templates

7 Stacks

Live Runtimes

4 Active

Project Generator

new-lab.sh

Interactive Runtimes

Live Server Endpoints.

Explore the active language runtimes below or test their JSON responses directly in the browser.

PHP 8.3 /lab/php-runtime/

PHP Runtime & Benchmark

Inspects active extensions, OPcache configuration, and runs a real-time SHA-256 and array sorting benchmark.

Open App

Python 3.12 /lab/python-wsgi/

Python WSGI Service

Runs a PEP 3333 WSGI application reporting interpreter details, platform metadata, and cryptographic hash performance.

Open App

Ruby 3.3 /lab/ruby-rack/

Ruby Rack Inspector

Executes Ruby 3.3 on the server, displaying garbage collection metrics, YJIT status, and benchmark timings.

Open App

Go 1.23 /lab/go-runtime/

Go Native Binary

Compiled as a standalone Linux amd64 binary serving both HTML and JSON responses with sub-millisecond startup.

Open App

JSON Response Preview Select “Test JSON” on any card above

{
  "message": "Click 'Test JSON' on any runtime card above to fetch a live response from the server."
}

Quick Start

Create a New Lab Project.

Use the scaffolding script to initialize a new repository with Git identity, starter code, and deployment workflow pre-configured.

Starter Stack Project Name

Command

./scripts/new-lab.sh go-cgi url-shortener

Local Directory: lab-url-shortener

GitHub Remote: git@github-personal:carlos-silveira/lab-url-shortener.git

Build Strategy: GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build

Destination URL: https://carlossilveira.dev/lab/url-shortener/

Architecture

Supported Runtimes.

Template	Language	Server Runtime / Toolchain	Execution Model
`starters/php-api`	PHP 8.3 / 8.5	`/opt/alt/php83/usr/bin/php`	Native LiteSpeed SAPI with clean URL routing.
`starters/python-django`	Python 3.12	`/opt/alt/python312/bin/python3`	Phusion Passenger WSGI and CGI bridge.
`starters/nextjs-react`	Next.js / React	`/opt/alt/alt-nodejs22/root/usr/bin/node`	Static export built in GitHub Actions.
`starters/go-cgi`	Go 1.23	`GOOS=linux GOARCH=amd64 CGO_ENABLED=0`	Standalone Linux binary served via HTTP/CGI.
`starters/rust-cgi`	Rust 2021	`x86_64-unknown-linux-musl`	Static musl binary compiled in GitHub Actions.
`starters/ruby-rack`	Ruby 3.3	`/opt/alt/ruby33/bin/ruby`	Phusion Passenger Rack and CGI bridge.
`starters/java-graalvm`	Java 21	`native-image --static --libc=musl`	GraalVM native binary compiled in GitHub Actions.