Johan Hernandez

gtm-superintelligence. Open-source GTM intelligence + automation for any sales call. Coaching, deal & account scoring, CRM auto-fill, and 30 post-call agents. Any recorder, any CRM.

kcp. Kubernetes-like control planes for form-factors and use-cases beyond Kubernetes and container workloads.

certificates. 🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.

ecr-public-cleanup-action. Delete orphan untagged images from AWS ECR Public, preserving multi-arch manifest-list children

baremail. TypeScript

seomachine. A specialized Claude Code workspace for creating long-form, SEO-optimized blog content for any business. This system helps you research, write, analyze, and optimize content that ranks well and serves your target audience.

Sylve. Lightweight GUI for managing Bhyve, Jails, ZFS, networking, and more on FreeBSD

agency-agents. A complete AI agency at your fingertips - From frontend wizards to Reddit community ninjas, from whimsy injectors to reality checkers. Each agent is a specialized expert with personality, processes, and proven deliverables.

minikv. Distributed, multi-tenant key-value and object store in Rust, with Raft consensus, WAL durability, and production-oriented operations.

colima. Container runtimes on macOS (and Linux) with minimal setup

incus-os. Immutable Linux OS to run Incus

unisondb. A streaming multimodal database for Edge AI, and Edge Computing.

hujson. HuJSON: JSON for Humans (JWCC: JSON w/ comments and trailing commas)

typed-ffmpeg. Type-safe FFmpeg bindings for Python & TypeScript — filters, typing, and docs

PoePwrNegotiator. A UEFI application that sends LLDP-MED packets at boot to negotiate PoE+ power before the OS loads.

tesseral. Open source auth infrastructure for B2B SaaS

nload. Real-time network traffic monitor

go-tuf. Go implementation of The Update Framework (TUF)

tailscale. The easiest, most secure way to use WireGuard and 2FA.

athens. A Go module datastore and proxy

cua. Scale computer-use 2.0 with open-source drivers, cross-OS fleets, and benchmarks for training, evaluation, and data generation.

swift-build. A high-level build system based on llbuild, used by Xcode, Swift Playground, and the Swift Package Manager

voidDB. A transactional key-value database written in Go for Linux and macOS

ubicloud. Open source alternative to AWS. Elastic compute, block storage (non replicated), firewall and load balancer, managed Postgres, K8s, AI inference, and IAM services.

MikuMikuBeam. An open-source network stresser tool but it's Hatsune Miku

vprox. High-availability network proxy / VPN server, powered by WireGuard

foundation. Open-source Kubernetes application platform that powers Namespace's developer-optimized compute platform.

index_advisor. PostgreSQL Index Advisor

llm.c. LLM training in simple, raw C/CUDA

dispatch. All of the ad-hoc things you're doing to manage incidents today, done for you, and much more!

openbao. OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.

imagick. Go binding to ImageMagick's MagickWand C API

opentofu. OpenTofu lets you declaratively manage your cloud infrastructure.

k8s-worker-pod-autoscaler. Kubernetes autoscaler for the workers. Resource is called WPA. Queues Supported: SQS, Beanstalkd.

zitadel. ZITADEL - Identity infrastructure, simplified for you.

koanf. Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

keycloak-apple-social-identity-provider. Apple Social Identity Provider for Keycloak

go-internals. A book about the internals of the Go programming language.

casdoor. An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD

svix-webhooks. The open source and enterprise-ready webhooks service 🦀

cryptopasta. copy & paste-friendly golang crypto

go-zfs. Go wrappers for ZFS commands

zrepl. One-stop ZFS backup & replication solution

wildebeest. Wildebeest is an ActivityPub and Mastodon-compatible server

goja. ECMAScript/JavaScript engine in pure Go

wazero. wazero: the zero dependency WebAssembly runtime for Go developers

sailboatui. Sailboat UI is a modern UI component library for Tailwind CSS

bflat. C# as you know it but with Go-inspired tooling (small, selfcontained, and native executables)

amazon-ecr-login. Logs into Amazon ECR with the local Docker client.

websocket. Minimal and idiomatic WebSocket library for Go

httpflusher. Easy chunked responses and buffering for the net/http package

genqlient. a truly type-safe Go GraphQL client

ebpf. ebpf-go is a pure-Go library to read, modify and load eBPF programs and attach them to various hooks in the Linux kernel.

diffusionbee-stable-diffusion-ui. Diffusion Bee is the easiest way to run Stable Diffusion locally on your M1 Mac. Comes with a one-click installer. No dependencies or technical knowledge needed.

workerd. The JavaScript / Wasm runtime that powers Cloudflare Workers

zincsearch. ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.

meilisearch. A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

sol. MacOS launcher & command palette

MicrocodeDecryptor. Python

go-sqlite3. sqlite3 driver for go using database/sql

preline. Preline UI is an open-source set of prebuilt UI components based on the utility-first Tailwind CSS framework.

upptime. ⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary

kubeletctl. A client for kubelet

dns. DNS library in Go

faasd. Lightweight and portable version of OpenFaaS

woodpecker. Woodpecker is a simple, yet powerful CI/CD engine with great extensibility.

shlex. Automatically exported from code.google.com/p/go-shlex

pulumi-provider-boilerplate. Boilerplate showing how to create a native Pulumi provider

CodeEdit. 📝 CodeEdit App for macOS – Elevate your code editing experience. Open source, free forever.

ent. An entity framework for Go

Helm-Intellisense. Extension for Visual Studio Code - Intellisense in helm-templates from the values.yaml

nginx. The official NGINX Open Source repository.

playwright. Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

gatekeeper. The first open-source DDoS protection system

netmaker. Netmaker makes networks with WireGuard. Netmaker automates fast, secure, and distributed virtual networks.

swagger-typescript-api. Generate the API Client for Fetch or Axios from an OpenAPI Specification

imagor. Fast, secure image processing server and Go library, using libvips

monoio. Rust async runtime based on io-uring.

wgctrl-go. Package wgctrl enables control of WireGuard interfaces on multiple platforms.

kerla. A new operating system kernel with Linux binary compatibility written in Rust.

ratelimit. Efficient token-bucket-based rate limiter package.

errorpush. Minimalist Error collection Service compatible with Rollbar clients. Sentry or Rollbar alternative.

nebula. A scalable overlay networking tool with a focus on performance, simplicity and security

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

SwiftDate. 🐔 Toolkit to parse, validate, manipulate, compare and display dates, time & timezones in Swift.

inlets-pro. Secure HTTP and TCP tunnels that just work

javascript-time-ago. International highly customizable relative date/time formatting

blpapi-python. Bloomberg Python API

gitbacked-controller. Write controller-runtime based k8s controllers that read/write to git, not k8s

netbird. Connect your devices into a secure WireGuard®-based overlay network with SSO, MFA and granular access controls.

connpool. Connection pool for Go's net.Conn interface

bob_cassette_rewinder. Renew and Refill Bob Cassettes for 98% Cost Saving!

fasthttp. Fast HTTP package for Go. Tuned for high performance. Zero memory allocations in hot paths. Up to 10x faster than net/http

quic-go. A production-ready QUIC implementation in pure Go

traffic-accounting-nginx-module. Monitor the incoming and outgoing traffic metrics in realtime for NGINX

ratelimit. A Go blocking leaky-bucket rate limit implementation

certstrap. Tools to bootstrap CAs, certificate requests, and signed certificates.

aop. AMQP on Pulsar protocol handler

pgx. PostgreSQL driver and toolkit for Go

krunvm. Create microVMs from OCI images

darwinkit. Native Mac APIs for Go. Previously known as MacDriver

airbyte. Open-source data movement for ELT pipelines and AI agents — from APIs, databases & files to warehouses, lakes, and AI applications. Both self-hosted and Cloud.

tailwindcss. A utility-first CSS framework for rapid UI development.

github-actions-golang. GitHub Actions as CI for Go

gjson. Get JSON values quickly - JSON parser for Go

trino. Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

libkrun. A dynamic library providing Virtualization-based process isolation capabilities

buildpacker. Cloud-Native Buildpacks + Heroku Shims

kube-state-metrics. Add-on agent to generate and expose cluster-level metrics.

node_exporter. Exporter for machine metrics

redpanda. Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

waypoint. A tool to build, deploy, and release any application on any platform.

better-sqlite3. The fastest and simplest library for SQLite3 in Node.js.

fucking-algorithm. Crack LeetCode, not only how, but also why.

drogon. Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows

go-api-quickstart. Go API service and Widemesh application platform

nomad-driver-containerd. Nomad task driver for launching containers using containerd.

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

termui. Golang terminal dashboard

awx. AWX provides a web-based user interface, REST API, and task engine built on top of Ansible. It is one of the upstream projects for Red Hat Ansible Automation Platform.

go-gtk. Go binding for GTK

nginx-module-vts. Nginx virtual host traffic status module

timescaledb. A time-series database for high-performance real-time analytics packaged as a Postgres extension

Docker-OSX. Run macOS VM in a Docker! Run near native OSX-KVM in Docker! X11 Forwarding! CI/CD for OS X Security Research! Docker mac Containers.

dotnetcore-buildpack. Heroku .NET Core Buildpack

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

winget-cli. WinGet is the Windows Package Manager. This project includes a CLI (Command Line Interface), PowerShell modules, and a COM (Component Object Model) API (Application Programming Interface).

react-native-macos. A framework for building native macOS apps with React.

kilo. Kilo is a multi-cloud network overlay built on WireGuard and designed for Kubernetes (k8s + wg = kg)

sonic. 🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

pulumi. Pulumi - Infrastructure as Code in any programming language 🚀

DifferenceKit. 💻 A fast and flexible O(n) difference algorithm framework for Swift collection.

DeepDiff. 🦀Amazingly incredible extraordinary lightning fast diffing in Swift

tabler-icons. A set of over 6100 free MIT-licensed high-quality SVG icons for you to use in your web projects.

lens. Lens - The way the world runs Kubernetes

go-libvirt. Package libvirt provides a pure Go interface for interacting with Libvirt. Apache 2.0 Licensed.

cli. Command-line tool to customize Spotify client. Supports Windows, macOS, and Linux.

kui. A hybrid command-line/UI development experience for cloud-native development

multipass. Multipass orchestrates virtual Ubuntu instances

Full-stack-Developer-Interview-Questions-and-Answers. :grey_question:Full-stack developer interview questions and answers

Lockdown-iOS. Swift

kine. Run Kubernetes on MySQL, Postgres, sqlite, not etcd.

redux-persist. persist and rehydrate a redux store

algo. 101+ coding interview problems in Go

cfssl. CFSSL: Cloudflare's PKI and TLS toolkit

docker_auth. Authentication server for Docker Registry 2

BuildMode. Provides info about the iOS app for simulator, debuggable, enterprise or distribution builds to use sandbox or production cloud from Apple

dear-github-2.0. 📨 An open letter to GitHub from the maintainers of open source projects

dotenv. A Ruby gem to load environment variables from `.env`.

table. 🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table

AnyCodable. Type-erased wrappers for Encodable, Decodable, and Codable values

kubernetes-ingress. HAProxy Ingress Controller for Kubernetes https://www.haproxy.com/blog/announcing-haproxy-kubernetes-ingress-controller-3-2

hntitlenator. Test your HN title against a neural network

draft-js. A React framework for building text editors.

goquery. A little like that j-thing, only in Go.

gon. Sign, notarize, and package macOS CLI tools and applications written in any language. Available as both a CLI and a Go library.

go-syslog. Blazing fast syslog parser

dapr. Dapr is a portable runtime for building distributed applications across cloud and edge, combining event-driven architecture with workflow orchestration.

cortex. Production infrastructure for machine learning at scale

Neon. A powerful Swift programmatic UI layout framework.

JZCalendarWeekView. Calendar Week & Day View in iOS Swift

markdown. markdown parser and HTML renderer for Go

aws-mobile-appsync-sdk-ios. iOS SDK for AWS AppSync.

Atributika. Convert text with HTML tags, links, hashtags, mentions into NSAttributedString. Make them clickable with UILabel drop-in replacement.

reverse-interview. Questions to ask the company during your interview

SwiftyRSA. RSA public/private key encryption in Swift

go-dqlite. Go bindings for libdqlite

clean-go-article. A reference for the Go community that covers the fundamentals of writing clean code and discusses concrete refactoring examples specific to Go.

iOS-Swift-Key-Smash. An iOS [swift] app which uses an external bluetooth keyboard + AVSpeechSynthesizer to provide enjoyment for my 2 year old.

KeyboardKit. Create amazing custom iOS keyboards with Swift & SwiftUI.

KeyboardLayoutEngine. ⌨️ The most simple custom keyboard generator for iOS ever!

yaegi. Yaegi is Another Elegant Go Interpreter

gofpdf. A PDF document generator with high level support for text, drawing and images

cadvisor. Analyzes resource usage and performance characteristics of running containers.

yugabyte-db. YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

octosql. OctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.

cloudflared. Cloudflare Tunnel client

acme. Go client library implementation for ACME v2 (RFC8555)

WSL2-Linux-Kernel. The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)

go-update. Build self-updating Golang programs

macOS-Simple-KVM. Tools to set up a quick macOS VM in QEMU, accelerated by KVM.

slim. Build and run tiny vms from Dockerfiles. Small and sleek.

strfmt. openapi toolkit common string formats

kubernetes-failure-stories. Compilation of public failure/horror stories related to Kubernetes

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

faunadb-go. Go driver for Fauna v4 (deprecated)

publicsuffix-go. Domain name parser for Go based on the Public Suffix List.

goreleaser. Release engineering, simplified

data-corrupting-architectures. Materials related to my talk "Data Corrupting Architectures We Know and Love"

natsboard. Dashboard for monitoring NATS (an open source messaging system)

loki. Like Prometheus, but for logs.

dnsimple-go. The DNSimple API client for Go.

wasm-micro-runtime. WebAssembly Micro Runtime (WAMR)

pg_auto_failover. Postgres extension and service for automated failover and high-availability

promptui. Interactive prompt for command-line applications

aurora. Golang ultimate ANSI-colors that supports Printf/Sprintf methods

go-perfbook. Thoughts on Go performance optimization

react-native-windows. A framework for building native Windows apps with React.

vim.wasm. Vim editor ported to WebAssembly

k3os. Purpose-built OS for Kubernetes, fully managed by Kubernetes.