Guilherme J. Tramontina

dnsglobe. Global DNS propagation checker TUI — watch a DNS record propagate across 34 public resolvers worldwide, on a world map in your terminal

perry. A native TypeScript compiler written in Rust. Compiles TypeScript directly to executables using SWC and LLVM.

OpenCut. The open-source CapCut alternative

publint. Lint packaging errors

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

d2. D2 is a modern diagram scripting language that turns text to diagrams.

principia-softwarica. Fork of Plan 9 meant for education. https://principia-softwarica.org/

alchemy-effect. Infrastructure as Effects

Hex. VOICE → WORDS

awesome-agent-skills. A curated collection of 1000+ agent skills from official dev teams and the community, compatible with Claude Code, Codex, Gemini CLI, Cursor, and more.

harper. Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

quint. An executable specification language with delightful tooling based on the temporal logic of actions (TLA)

worldmonitor. Real-time global intelligence dashboard. AI-powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness interface

shannon. Shannon is an autonomous, white-box AI pentester for web applications and APIs. It analyzes your source code, identifies attack vectors, and executes real exploits to prove vulnerabilities before they reach production.

standard-schema. A standard interface for TypeScript schema validation libraries

claude-code. Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

ministack. Ministack: Free, open-source local AWS emulator - 55+ services, Terraform compatible, real databases. Free forever. MIT licensed.

eyg-lang. The safest scripting language for you, or your agent.

Lilex. 🤘Open source programming font

bombadil. Property-based testing for web and terminal UIs

llmfit. Hundreds of models & providers. One command to find what runs on your hardware.

tart. macOS and Linux VMs on Apple Silicon to use in CI and other automations

impeccable. The design language that makes your AI harness better at design.

skill-factory. Python

redamon. An AI-powered agentic red team framework that automates offensive security operations, from reconnaissance to exploitation to post-exploitation, with zero human intervention.

MonoSketch. An ASCII graph drawing app

but-head. A display font with monospace character, designed for visual impact and creative typography

ralph-tui. TypeScript

absurd. An experiment in durability

pg-bossman. TypeScript

editor.js. A block-style editor with clean JSON output

rison. JavaScript/Python/etc Rison

avante.nvim. Use your Neovim like using Cursor AI IDE!

winboat. Run Windows apps on 🐧 Linux with ✨ seamless integration

hey. HTTP load generator, ApacheBench (ab) replacement

icones. ⚡️ Icon Explorer with Instant searching, powered by Iconify

letterpress. Gutenberg the 💩 out of it!

npq. safely install npm packages by auditing them pre-install stage

aposd-vs-clean-code. A discussion between John Ousterhout and Robert Martin about differences between John's book "A Philosophy of Software Design" and Bob's book "Clean Code".

carbonyl. Chromium running inside your terminal

500-AI-Agents-Projects. The 500 AI Agents Projects is a curated collection of AI agent use cases across various industries. It showcases practical applications and provides links to open-source projects for implementation, illustrating how AI agents are transforming sectors such as healthcare, finance, education, retail, and more.

pagedjs. Display paginated content in the browser and generate print books using web technology

tinyauth. The tiniest OpenID Certified™ authorization and authentication server you have ever seen.

AmigaVision. The ultimate Amiga games & demo scene setup for MiSTer & Pocket FPGAs, emulators, and real hardware. Open source, community driven. This is an Amiga HDF image builder that uses WHDLoad and custom installs.

porffor. An ahead-of-time JavaScript compiler

go-workflows. Embedded durable workflows for Golang similar to DTFx/Cadence/Temporal

nixsa. Nixsa - A Nix Standalone Environment

crush. Glamourous agentic coding for all 💘

fast-check. Property based testing framework for JavaScript (like QuickCheck) written in TypeScript

departure-mono. A monospaced pixel font with a lo-fi, techy vibe

lean4. Lean 4 programming language and theorem prover

serena. A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

secretspec. Declare secrets once. Store them anywhere.

awesome-claude-code. A hand-picked collection of the finest of resources for the most awesome of agents, Claude Code, the undisputed champion of coding companions, from the unstoppable team at Anthropic PBC. A delectable showcase of top tier skills, ambidextrous agents, scintillating status lines, top notch developer tooling, and also we have plugins

templier. A Go Templ web frontend development environment that automatically rebuilds the server and reloads the tab.

gostar. Fluent HTML without templates, built from spec

claude-cookbooks. A collection of notebooks/recipes showcasing some fun and effective ways of using Claude.

servers. Model Context Protocol Servers

pglite. Embeddable Postgres with real-time, reactive bindings.

quarkdown. 🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and knowledge bases.

basecoat. A components library built with Tailwind CSS that works with any web stack.

templui. A growing collection of beautifully designed UI components for Go and templ. Install via CLI. Customize everything. Own your code.

hl. A fast and powerful log viewer and processor that converts JSON logs or logfmt logs into a clear human-readable format.

air-datepicker. Lightweight, dependency-free JavaScript datepicker.

humanlog. Observability on your laptop

12-factor-agents. What are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers?

echarts. Apache ECharts is a powerful, interactive charting and data visualization library for browser

gum. A tool for glamorous shell scripts 🎀

datastar. The hypermedia framework.

htmz. html with targeted manipulation zones

httptap. View HTTP/HTTPS requests made by any Linux program

midscene. AI-powered, vision-driven UI automation for every platform.

dbos-transact-ts. Database-Backed Durable TypeScript Workflows

esp32-weather-epd. A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.

Baileys. Socket-based TS/JavaScript API for WhatsApp Web

whatsapp-web.js. A WhatsApp client library for NodeJS that connects through the WhatsApp Web browser app

swtl. A Service Worker Templating Language (swtl) for component-like templating in service workers. Streams templates to the browser as they're being parsed, and handles rendering iterables/Responses in templates by default.

jtml. Write HTML in JavaScript, using template-tags.

spec. The AsyncAPI specification allows you to create machine-readable definitions of your asynchronous APIs.

difftastic. a structural diff that understands syntax 🟥🟩

haiven. Main repo for the Haiven team assistant

mockoon. Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

foundationdb. FoundationDB - the open source, distributed, transactional key-value store

greenmask. Database anonymization and test data management

restate. Restate is the platform for building resilient applications that tolerate all infrastructure faults w/o the need for a PhD.

DeskPad. A virtual monitor for screen sharing

prevayler-clj-aws. Absurdly fast, 100% transparent, ACID persistence in under 100 lines of Clojure.

kamal. Deploy web apps anywhere.

typed-html. TypeSafe HTML templates using TypeScript. No need to learn a template library.

ergo. An actor-based Framework with network transparency for creating event-driven architecture in Golang. Inspired by Erlang. Zero dependencies.

zen. Open-source Business Rules Engine for your Rust, NodeJS, Python, Go, Java, C#, Kotlin (JVM), Kotlin (Android) and Swift (iOS) applications.

facet. Web components made simple and declarative

go-rambo. Prevalent System implementation based on PrevaylerJr

Whisky. A modern Wine wrapper for macOS built with SwiftUI

posting. The modern API client that lives in your terminal.

onlook. The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

listmonk. High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

hyperswitch. Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation

lite-youtube-embed. A faster youtube embed.

smoothmq. An improved drop-in replacement for SQS

waveterm. An open-source, AI-integrated, cross-platform terminal for seamless workflows

servor. Dependency free file server for single page app development

steampipe. Zero-ETL, infinite possibilities. Live query APIs, code & more with SQL. No DB required.

modern-font-stacks. System font stack CSS organized by typeface classification for every modern operating system

nix-installer. Install Nix and flakes with the fast and reliable Determinate Nix Installer, with over 7 million installs.

trix. A rich text editor for everyday writing

quill. Quill is a modern WYSIWYG editor built for compatibility and extensibility

tom-select. Tom Select is a lightweight (~16kb gzipped) hybrid of a textbox and select box. Forked from selectize.js to provide a framework agnostic autocomplete widget with native-feeling keyboard navigation. Useful for tagging, contact lists, etc.

typeorm. TypeScript & JavaScript ORM for Node.js — supports PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, and more.

omakub. Opinionated Ubuntu Setup

pg-boss. Queueing jobs in Postgres from Node.js like a boss

tsconfig. The simplest way to set up your tsconfig.json

encore. The infrastructure platform for the intelligence era

sortable. Vanilla JavaScript table sort

pgmq. A lightweight message queue. Like AWS SQS and RSMQ but on Postgres.

gharchive.org. GH Archive is a project to record the public GitHub timeline, archive it, and make it easily accessible for further analysis.

river. Fast and reliable background jobs in Go

postgres. Postgres.js - The Fastest full featured PostgreSQL client for Node.js, Deno, Bun and CloudFlare

nosurf. CSRF protection middleware for Go.

dosbox-staging. DOSBox Staging is a modern continuation of DOSBox with advanced features and current development practices.

alpine. A rugged, minimal framework for composing JavaScript behavior in your markup.

osquery. SQL powered operating system instrumentation, monitoring, and analytics.

mono. Free and open-source monospaced font from Evil Martians

maybe. The personal finance app for everyone

graceful. A best practice http server set up that supports graceful shutdown

WeasyPrint. The awesome document factory

pratica. 🥃 Functional Algebraic Data Types

hotscript. A library of composable functions for the type-level! Transform your TypeScript types in any way you want using functions you already know.

durdraw. Versatile ASCII and ANSI Art text editor for drawing in the Linux/Unix/macOS terminal, with animation, 256 and 16 colors, Unicode and CP437, and customizable themes

NixThePlanet. Run macOS, Windows and more via a single Nix command, or simple nixosModules

htmx-go. </> Build awesome HTMX + Go projects faster.

fleek. [deprecated] Own your $HOME

monaspace. An innovative superfamily of fonts for code

elysia-htmx. Elysia HTMX Context

flexoki. An inky color scheme for prose and code.

go-git. A highly extensible Git implementation in pure Go.

fx. Terminal JSON viewer & processor

b612. Eclipse B612

hyperleaflet. Leaflet for Hypermedia

responsively-app. A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

wezterm-bar. WezTerm Plugin for the retro tab bar (migrated to my own forge)

hoard-of-bitfonts. turns out I like bitmap fonts

snips.sh. ✂️ passwordless, anonymous SSH-powered pastebin with a human-friendly TUI and web UI

html. 🏛️ Super fast JSX runtime to generate HTML strings that works everywhere. If it supports string we got you covered.

algnhsa. AWS Lambda Go net/http server adapter

templ. A language for writing HTML user interfaces in Go.

zero-to-nix. Zero to Nix is your guide to learning Nix and flakes. Created by Determinate Systems.

devbox. Instant, easy, and predictable development environments

script. Making it easy to write shell-like scripts in Go

fp-go. Functional programming library for Go 1.24+, inspired by fp-ts. Uses generic type aliases for a clean, composable API. Provides Option, Either, Result, IO, IOResult, Reader, and ReaderIOResult monads, plus optics (Lens, Prism, Traversal) for immutable data manipulation. Supports Functor, Applicative, and Monad abstractions with do-notation-style

expr. Expression language and expression evaluation for Go

typograms. JavaScript

markwhen. Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more.

eml. event modeling language - a dsl for producing event model diagrams from code

meta-typing. 📚 Functions and algorithms implemented purely with TypeScript's type system

echo. High performance, minimalist Go web framework

dockertest. Write better integration tests! Dockertest helps you boot up ephermal docker images for your Go tests with minimal work.

pagefind. Static low-bandwidth search at scale

autocomplete. 🔮 Fast and full-featured autocomplete library

tiptap. The headless rich text editor framework for web artisans.

internet-draft-template. A template repository for Internet-Draft management

distrobox. Use any linux distribution inside your terminal. Enable both backward and forward compatibility with software and freedom to use whatever distribution you’re more comfortable with. Mirror available at: https://gitlab.com/89luca89/distrobox

ebiten. A dead simple 2D game engine for Go

frogmouth. A Markdown browser for your terminal

ghooks.gradle. Simple git hooks

goat. Render ASCII art as SVG diagrams

nomnoml. The sassy UML diagram renderer

metrics. 📊 An infographics generator with 30+ plugins and 300+ options to display stats about your GitHub account and render them as SVG, Markdown, PDF or JSON!

quiver. A modern commutative diagram editor for the web.

gleam. ⭐️ A friendly language for building type-safe, scalable systems!

staticrypt. Password protect a static HTML page, decrypted in-browser in JS with no dependency. No server logic needed.

ooze. 🧬 Go Mutation Testing

docker-diagrams. An image for https://github.com/mingrammer/diagrams

manim. A community-maintained Python framework for creating mathematical animations.

go-extlib. Go Extended Lib

awesome-deno. Curated list of awesome things related to Deno

active-forks. Find active github forks of a repo https://git.io/vSnrC

monkey. Monkey patching in Go

MalwareSourceCode. Collection of malware source code for a variety of platforms in an array of different programming languages.

nvim-ide. A full featured IDE layer for Neovim. Heavily inspired by VSCode.

go-diff. Diff, match and patch text in Go

go-snaps. Jest-like snapshot testing in Go 📸

color-nostalgia. A neutral yet colorful theme that brings about an odd sense of nostalgia.

fake-as-fuck. I'm a lonely, lonely lord. Pick another day to be restored. Just another fate that's going overboard.

cargo-mutants. :zombie: Inject bugs and see if your tests catch them!

elevatorsaga. The elevator programming game!

buffalo. Rapid Web Development w/ Go

satori. Enlightened library to convert HTML and CSS to SVG

mailing. Build, test, send emails with React

rapids_rivers_in_python. An implementation of the Rapids/Rivers/Ponds metaphor in Python 3

SmallerWebHexagon. Ruby

wiki. WG wiki

mvp. MVP.css — Minimalist classless CSS stylesheet for HTML elements

rapids_rivers_in_kotlin. An implementation of the Rapids/Rivers/Ponds metaphor in Kotlin

rapids_rivers_in_csharp. An implementation of the Rapids/Rivers/Ponds metaphor in C# 6

checkmake. Linter/analyzer for Makefiles

simple-icons. SVG icons for popular brands

UTM. Virtual machines for iOS and macOS

typograms. JavaScript

kroki. Creates diagrams from textual descriptions!