Open source. Open possibilities.

Apache APISIX is a dynamic, real-time, high-performance cloud-native API and AI gateway built on NGINX and etcd, offering dynamic routing, plugin hot-loading, multi-protocol support, and AI proxying for LLM workloads.

Levelrail is a self-hosted deployment platform where a node agent talks directly to Docker's Engine API instead of SSHing in, turning Linux machines into a private cloud with git deploys, TLS, logs, metrics, rollback and managed databases.

A GitHub Action for CI/CD workflows to compress and decompress files. It supports six archive formats (zip, tar, tgz, tbz2, txz, tzst), password-protected zip, SHA256 verification, glob patterns, and provides detailed job summaries for efficient artifact management and secure release bundles.

Smokey is a static single-file dashboard that shows GitHub repository health at a glance: last push, latest release, open PRs and issues in one sortable table, plus attention badges for external contributor activity. No login or build step is needed for public repos.

Checkov is an open-source static analysis tool that scans infrastructure-as-code files and container images for security misconfigurations and vulnerabilities, supporting Terraform, CloudFormation, Kubernetes, Dockerfile, and more with over 1000 built-in policies.

A large open-source collection of 2624 DevOps and SRE interview questions and hands-on exercises spanning Linux, Kubernetes, Terraform, AWS, Azure, GCP, Docker, Ansible, CI/CD, networking, databases, observability, and more.

Kestra is an open-source, event-driven orchestration platform designed for data, AI, and infrastructure workflows, utilizing a declarative YAML interface.

A personal portfolio site built with MkDocs Material, deployed via GitHub Actions OIDC, Terraform IaC, and privacy‑first serverless analytics on AWS S3/CloudFront/GitHub Pages.

SMTP Tool is a portable Windows desktop application for testing, diagnosing, and debugging SMTP servers. It supports TLS 1.3, real-time open/click tracking via local HTTP server, latency benchmarking, and interactive protocol terminal.

Xonsh is a full-featured, cross-platform shell that uses Python 3 as its language, seamlessly integrating shell commands with Python. It runs on Linux, macOS, Windows, BSD, Jupyter, Android, Raspberry Pi, and Nix, with an extension system and AI-friendly features.

Self-hosted GitHub App that publishes a required check accepting human CODEOWNER approval or approval from explicitly enrolled GitHub Apps, with organization and repository policies; pre-release and shadow-mode only.

GeeksPulse is a free, ad-free developer news aggregator that curates 50 hand-picked RSS feeds across 11 categories into a fast static site with a cyberpunk UI, AI summaries, bookmarks and keyboard shortcuts.

UCloud SDK for Node.js: a client library for calling UCloud cloud APIs from Node.js. The README links Chinese-language guides on quickstart, configuration, error handling, middleware and generic calls, plus examples for batch-creating cloud hosts and building a two-tier load-balanced architecture.

Dokploy is a free, self-hostable Platform as a Service (PaaS) for deploying and managing applications and databases, positioned as an open-source alternative to Vercel, Heroku, and Netlify.

Sentry is a developer-first debugging platform for error tracking and performance monitoring, with official SDKs for many languages and frameworks.

Fission is an open-source, Kubernetes-native serverless framework for deploying and managing functions and applications on Kubernetes. It supports multiple languages, offers fast cold starts (~100ms), and enables automatic scaling.

SOPS is a flexible editor for encrypted files that supports multiple data formats and integrates with various cloud KMS providers and encryption tools.

QA Studio is an open-source, self-hostable test management platform for QA teams. It offers hierarchical test suites and cases, test run planning across environments, rich dashboards for results and trends, media attachments, and a full REST API.

A community-maintained DevOps reference guide covering Docker, Kubernetes, Prometheus, Git, Ansible, Terraform, Jenkins, GitLab CI, GitHub Actions, CircleCI, Travis CI, Puppet, Chef, Linux, and networking, with concepts, commands, tutorials, interview questions, and curated learning links.

Curated knowledge repository of SRE practices, tools, and culture from leading tech organizations including Airbnb, Netflix, Google, and many others.