Tag: Opensource

Note (2026-07) This article was not completed and stayed as a draft for more than 10 years. As I think it is still useful today, even incomplete,...

OpenSpec is a lightweight, spec‑driven framework for coding agents and CLIs — universal, open source, and no API keys or MCP required.

Open-source observability platform built on OpenTelemetry. Collect, visualize, and analyze distributed traces, logs, and metrics from your services with AI-powered diagnostics.

Complete tutorial for my skills repo with 170,000 stars. Learn how to install, set up, and use the main workflow: from initial setup through grill-with-docs interviews, specs, tickets, and implementation with code review.

Kimi K3 is the world's first open 3T-class model — frontier performance across coding, knowledge work, and reasoning, with native multimodality and 1M context.

The AI agent made for open models, built to get things done.

Enabling coding agents to work together. Direct agent-to-agent messaging across your coding agents.

Netbird does it all: tunnels, proxying, firewall, if you want it - netbird delivers.
https://github.com/netbirdio/netbird

Orca is the Agent Development Environment (ADE) for shipping with coding agents. Run Claude Code, Codex, Gemini, Cursor CLI, and every other CLI agent in parallel across isolated worktrees. Get work done dramatically faster than any IDE. New features shipped every day. Free, open source, cross-platform.

Otari is an open-source LLM gateway built on any-llm. Otari.ai adds hosted routing, observability, budgets, and team management. Built by Mozilla.ai.

GLM 5.2 is the first open weights model I'd call a genuine competitor to Opus and GPT for agentic work - at ~15-20% of the price. Part one of why AI inference margins are about to collapse.

Industry leading Developer Docs, SDKs, API Client & Registry that your APIs deserve.

Open-source Kubernetes UI: topology, events, Helm, GitOps, traffic flows, OpenCost, cluster audit, image filesystem viewer, and MCP for AI agents. Single Go binary, Apache 2.0, no account required.

Learnings from post-AI Open Source and how we’re approaching this so far.

Get the most out of coding agents like Claude Code, Gemini CLI and Amp. Orchestrate multiple AI coding agents, track tasks, and manage your development workflow efficiently.

Connect your CalDAV calendar, define bookable meetings, share a link. No Node.js, no PostgreSQL, no subscription.

Check out Twingate and supercharge your security: https://bit.ly/3Y1OaZi

Introducing the new Obsidian Community site and developer dashboard.

Astro builds fast content sites, powerful web applications, dynamic server APIs, and everything in-between.

Streamlit is an open-source Python framework for data scientists and AI/ML engineers to deliver interactive data apps – in only a few lines of code.

a one-person open source software company building mise & friends.

The open source Git project just released Git 2.54. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.

Kimi K2.6 advances open-source coding, featuring long-horizon coding, coding-driven design, agent swarms, proactive agents, and the Claw Groups research preview.

The latest major release of Grafana introduces new tools that make it faster and easier to gain valuable insights into your data, operate and scale Grafana across teams, and so much more.

For developers, one of the first few things you need to come up with before handing over a project to another dev or team is an architecture diagram.
It serves as a visual blueprint that turns complex

A thorough walkthrough of uv's internals: the Rust crate architecture, what uv init actually does on disk, the two-thread resolver design, how PubGrub's CDCL algorithm works, batch prefetching, the forking resolver, and why these Rust-specific patterns make it 10–100x faster than pip.

Today we are launching the beta of EmDash, a full-stack serverless JavaScript CMS built on Astro 6.0. It combines the features of a traditional CMS with modern security, running plugins in sandboxed Worker isolates.

Create stunning demos for free. Open-source, no subscriptions, no watermarks, and free for commercial use. An alternative to Screen Studio. - siddharthvaddem/openscreen

The web browser made for people, with love. Best privacy by default, unbiased ad-blocking, no bloat and no noise. Fully open source.

Smooth your coding flow

Per-component uptime from tagged incidents.

We built an open-source proxy that adds tenant isolation to Prometheus, Loki, and Tempo by rewriting queries based on user identity.

Today is a big day for us, and for everyone who cares about transparency, privacy, and having full control over their own traffic. We’re finally open-sourcing the protocol that powers AdGuard VPN. And it now has a name: TrustTunnel.

GoReplay is a versatile open-source tool designed to capture and replay live HTTP traffic. Perfect for replay production traffic and conducting comprehensive traffic replay testing, it allows you to seamlessly record and replay traffic in staging environments for effective debugging and quality assurance.

Terra is the community Fedora repository which makes it easy to install and maintain software packages.

AI-powered open source real-time monitoring system for metrics, logs, alerts, and observability. No agent required.

Bun has been acquired by Anthropic. Anthropic is betting on Bun as the infrastructure powering Claude Code, Claude Agent SDK, and future AI coding products & tools.

Adaptive systems for evolving ideas – Zensical creates scalable Open Source systems for technical writing that always keep you in the flow

Yaak is a fast, secure, and offline API client with an agent-friendly CLI

Screego - open source screen sharing for developers

Penpot is the open-source free design software that connects designers and developers with no handoff drama. Prototyping, UI design and code - all in one app.

Kuvasz is an open-source, self-hosted uptime monitoring solution that provides comprehensive monitoring capabilities for websites and services.

Check out Twingate and supercharge your security: https://bit.ly/3Y1OaZi

Get to know the latest open source toolkit from GitHub that allows you to use Spec-Driven Development in any AI coding agent.

Ideas grow better together

WinBoat lets you run any Windows application on Linux with seamless desktop integration. Elegant interface, automated installs, filesystem integration, and native OS-level windows.

An open source, self-hosted implementation of the Tailscale control server - juanfont/headscale

Note:`libasound2-dev`system library is required to be installed for Sampler to
play thetriggersound. Usually this library is in
place, but if not - you can install it with your

Thulite is a Hugo and npm web framework for shipping fast, secure, SEO-friendly sites with modern tooling, integrations, and starters.

Kener is a free, open-source status page and uptime monitor. Deploy with Docker in under 2 minutes. Track 11 service types, manage incidents, schedule maintenance, and notify subscribers — all from one platform.

Free, self-hosted customer support platform with shared inbox, automation, and team collaboration. Deploy with a single binary.

Observable Frameworkis anopen-sourcestatic site generator for data apps, dashboards, reports, and more. Framework includes a preview server for local development, and a command-line interface for auto

We make the command line glamorous

User-friendly GUI macOS application for Homebrew Casks

From the Zed Blog: A tool that predicts your next move. Powered by Zeta, our new open-source, open-data language model.

Bring all of your authentication into a unified platform.

Index-AniSora is the most powerful open-source animated video generation model presented by Bilibili. It enables one-click creation of video shots across diverse anime styles including series episodes, Chinese original animations, manga adaptations, VTuber content, anime PVs, mad-style parodies, and more

The volunteer-built media solution that puts you in control of your media. Stream to any device from your own server, with no strings attached.

A set of beautifully designed components that you can customize, extend, and build on. Start here then make it your own. Open Source. Open Code.

Whether you want to gather statistics, or you need to inspect more in depth what's going on in your network, Sniffnet will get you covered.

RustDesk is the best open-source remote desktop software. Secure alternative to TeamViewer and AnyDesk with self-hosted servers. Cross-platform support for Windows, macOS, Linux, and Android.

Real-time infrastructure monitoring with per-second metrics, ML anomaly detection, and AI troubleshooting. Open source, #1 on GitHub. Cut MTTR by 80%.

Litestream is an open-source, real-time streaming replication tool that lets you safely run SQLite applications on a single node.

Try JetBrains Mono in your IDE. Its simple forms and attention to every detail make coding a nice experience for developers’ eyes, no matter which IDE you choose.

Harper checks your writing instantly—fast, lightweight and utterly private—so you can polish every clause without surrendering a single keystroke.

Make beautiful isometric infrastructure diagrams. Contribute to stan-smith/FossFLOW development by creating an account on GitHub.

Firezone is a fast, flexible VPN replacement built on WireGuard® that eliminates tedious configuration and integrates with your identity provider.

An open-source guide to help you write better command-line programs, taking traditional UNIX principles and updating them for the modern day.

Caddy is a powerful, enterprise-ready, open source web server with automatic HTTPS written in Go

Cybersecurity oriented awesome list. Contribute to 0xor0ne/awesome-list development by creating an account on GitHub.

Sync, search and backup shell history with Atuin.

In this post, I demonstrate the optimal workflow for creating new Debian packages in 2025, preserving the upstream Git history. The motivation for this is to lower the barrier for sharing improvements to and from upstream, and to improve software provenance and supply-chain security by making it easy to inspect every change at any level using standard Git tooling.\nKey elements of this workflow include:\nUsing a Git fork/clone of the upstream repository as the starting point for creating Debian packaging repositories. Consistent use of the same git-buildpackage commands, with all package-specific options in gbp.conf. DEP-14 tag and branch names for an optimal Git packaging repository structure. Pristine-tar and upstream signatures for supply-chain security. Use of Files-Excluded in the debian/copyright file to filter out unwanted files in Debian. Patch queues to easily rebase and cherry-pick changes across Debian and upstream branches. Efficient use of Salsa, Debian’s GitLab instance, for both automated feedback from CI systems and human feedback from peer reviews. To make the instructions so concrete that anyone can repeat all the steps themselves on a real package, I demonstrate the steps by packaging the command-line tool Entr. It is written in C, has very few dependencies, and its final Debian source package structure is simple, yet exemplifies all the important parts that go into a complete Debian package:\n