Joshua Sattler

OpenCut. The open-source CapCut alternative

provenant. Fast Rust scanner for licenses, copyrights, package metadata, SBOMs, and provenance data.

buzz. A hive mind communication platform

workbench-agent-ce. CLI and API interfaces for Workbench mantained by CS with <3

hunk. Review-first terminal diff viewer for agentic coders

elixir. Simple from zero to scale

pm-skills. PM Skills Marketplace: 100+ agentic skills, commands, and plugins — from discovery to strategy, execution, launch, and growth.

last30days-skill. AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web - then synthesizes a grounded summary

agentgateway. Next Generation Agentic Proxy for AI Agents and MCP servers

financial-services. Python

betterftp. BetterFTP is a free iOS and Android app that calculates your Functional Threshold Power (FTP) using a guided test on your smart trainer.

warp. Warp is an agentic development environment, born out of the terminal.

localsend. An open-source cross-platform alternative to AirDrop

VibeVoice. Open-Source Frontier Voice AI

terraform-hcloud-kubernetes. Terraform Module to Deploy a Highly Available, Production-Ready Talos Kubernetes Cluster on Hetzner Cloud

guppylm. A ~9M parameter LLM that talks like a small fish.

korb. REWE delivery CLI

opencode-claude-auth. OpenCode plugin that uses your existing Claude Code credentials — no separate login needed.

autoresearch. AI agents running research on single-GPU nanochat training automatically

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.

hocuspocus. The Yjs CRDT WebSocket backend for conflict-free real-time collaboration in your app.

yjs. Shared data types for building collaborative software

shuo. sub-500ms latency phone agent orchestration

Pulse. A beautiful, yet simple service monitor that lives in your notch. Service Down? Your Notch will tell you! 👀

BetterCapture. The macOS screen recorder for the rest of us - always free and open source with a native look and feel 📺

boredom-challenge. This is going to be boring

agentic-productivity. JavaScript

knowledge-work-plugins. Open source repository of plugins primarily intended for knowledge workers to use in Claude Cowork

terraform-skill. Terraform & OpenTofu Skill for AI Agents - testing, modules, CI/CD, and production patterns

zjstatus. A configurable statusbar plugin for zellij

humanizer. Agent skill that removes signs of AI-generated writing from text

excalidraw. Virtual whiteboard for sketching hand-drawn like diagrams

tldraw. Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.

ChartGPU. Beautiful, open source, WebGPU-based charting library

better-auth. The most comprehensive authentication framework

television. A very fast, portable and hackable fuzzy finder.

n8n. Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

intervals-mcp-server. Model Context Protocol (MCP) server for connecting Claude and ChatGPT with the Intervals.icu API.

zerodistraction. A firefox extension that blocks distracting websites to stay focused when you need to get things done

xyflow. React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

nanochat. The best ChatGPT that $100 can buy.

wattsup. WATTS UP Is a smart trainer-powered, arcade browser game.

desktop. Welcome to a calmer internet

home-manager. Manage a user environment using Nix [maintainer=@khaneliman, @rycee]

sloth. 🦥 Easy and simple Prometheus SLO (service level objectives) generator

bits-ui. The headless components for Svelte.

reshaped. Reshaped provides accessible React and Figma components for building beautiful products or starting your own design system

elixir-in-action. Code samples for Elixir in Action book

OpenSLO. Open specification for defining and expressing service level objectives (SLO)

cognitive-load. 🧠 Cognitive load is what matters

agents. Multi-harness agentic plugin marketplace for Claude Code, Codex CLI, Cursor, OpenCode, GitHub Copilot, and Gemini CLI

opencode. The open source coding agent.

phaser-zelda-like-tutorial. A Legend Of Zelda inspired game that was built using Phaser 3. This repo contains all of the code used in the course that is hosted on YouTube here: https://www.youtube.com/playlist?list=PLmcXe0-sfoShPM_vCNsuumh7crnNaLCwX

og-equity-compensation. Stock options, RSUs, taxes — read the latest edition: www.holloway.com/ec

devbox. Instant, easy, and predictable development environments

layerchart. Composable Svelte chart components to build a large variety of visualizations

phoenix. Peace of mind from prototype to production

phoenix_live_view. Rich, real-time user experiences with server-rendered HTML

ghostty. 👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.

kit. web development, streamlined

svelte. web development for the rest of us

scalar. Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern REST API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

blink.cmp. Performant, batteries-included completion plugin for Neovim

markitdown. Python tool for converting files and office documents to Markdown.

analytics. Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.

neovim. Vim-fork focused on extensibility and usability

just. 🤖 Just a command runner

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

mkcert. A simple zero-config tool to make locally trusted development certificates with any names you'd like.

ui. A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

bruno. Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

sops. Simple and flexible tool for managing secrets

astro. The web framework for content-driven websites. ⭐️ Star to support our work!

copenhagen. A basic guideline on implementing auth for the web

handbook. 37signals Employee Handbook

twenty. The open alternative to Salesforce, designed for AI.

examples. A repository to host examples and tutorials for Gin.

marshalsec. Java

LLM101n. LLM101n: Let's build a Storyteller

k8s-deployment-strategies. Kubernetes deployment strategies explained

zed. Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

llm-course. Course to get into Large Language Models (LLMs) with roadmaps and Colab notebooks.

maybe. The personal finance app for everyone

system-design. Learn how to design systems at scale and prepare for system design interviews

gin. Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.

distsys-class. Class materials for a distributed systems lecture series

signal-cli. signal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.

ML-For-Beginners. 12 weeks, 26 lessons, 52 quizzes, classic Machine Learning for all

generative-ai-for-beginners. 21 Lessons, Get Started Building with Generative AI

typst. A markup-based typesetting system that is powerful and easy to learn.

go-comdirect. Go module and CLI tool to interact with the comdirect REST API

catppuccin. 😸 Soothing pastel theme for the high-spirited!

keycloak. Open Source Identity and Access Management For Modern Applications and Services

spring-authorization-server. Spring Authorization Server

lila. ♞ lichess.org: the forever free, adless and open source chess server ♞

sbom-tool. The SBOM tool is a highly scalable and enterprise ready tool to create SPDX 2.2 compatible SBOMs for any variety of artifacts.

spdx-sbom-generator. Support CI generation of SBOMs via golang tooling.

chat-connect. Alexa skill to interact with ChatGPT

testcontainers-go. Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated integration/smoke tests. The clean, easy-to-use API enables developers to programmatically define containers that should be run as part of a test and clean up those resources when the test is done.

go-patterns. Curated list of Go design patterns, recipes and idioms

homeassistant-rx. The Reactive Extensions for Homeassistant

buckpal. An example approach for implementing a Clean/Hexagonal Architecture

envoy. Cloud-native high-performance edge/middle/service proxy

home-automation. JavaScript

vim. The official Vim repository

daisyui. 🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

osv-scanner. Vulnerability scanner written in Go which uses the data provided by https://osv.dev

devops-exercises. Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

opentelemetry-java. OpenTelemetry Java SDK

pterm. ✨ PTerm is a modern Go module to easily beautify console output. Featuring charts, progressbars, tables, trees, text input, select menus and much more 🚀 It's completely configurable and 100% cross-platform compatible.

netty. Netty project - an event-driven asynchronous network application framework

awesome-mac.  This project is dedicated to collecting high-quality macOS software and organizing them systematically by different categories for easy search and use.

planning-poker. Vue

hue-party-effects. This project is controlling your hue bridge and enables some party effects

act. Run your GitHub Actions locally 🚀

opentelemetry-java-instrumentation. OpenTelemetry auto-instrumentation and instrumentation libraries for Java

spring-data-relational. Spring Data Relational. Home of Spring Data JDBC and Spring Data R2DBC.

InterviewThis. An open source list of developer questions to ask prospective employers

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

AppFlowy. Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.

elasticsearch. Free and Open Source, Distributed, RESTful Search Engine

commitizen. Create committing rules for projects :rocket: auto bump versions :arrow_up: and auto changelog generation :open_file_folder:

spring-security. Spring Security

spring-security-samples. Java

architecture-decision-record. Architecture decision record (ADR) examples for software planning, IT leadership, and template documentation

ways-of-working. Ways of Working (WOW) has 100+ tips for teamwork, including principles, values, tenets, ground rules, aspirations, norms, agreements, expectations, understandings, and more.

logto. 🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

watermill. Building event-driven applications the easy way in Go.

oncall. Developer-friendly incident response with brilliant Slack integration

gotraining. Go Training Class Material :

nginxconfig.io. ⚙️ NGINX config generator on steroids 💉

examples. Infrastructure, containers, and serverless apps to AWS, Azure, GCP, and Kubernetes... all deployed with Pulumi

kustomize. Customization of kubernetes YAML configurations

conventionalcommits.org. The conventional commits specification

microservices-demo. Sample cloud-first application with 10 microservices showcasing Kubernetes, Istio, and gRPC.

go-diagrams. Create beautiful system diagrams with Go

node_exporter. Exporter for machine metrics

cli. 🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

90DaysOfDevOps. This repository started out as a learning in public project for myself and has now become a structured learning map for many in the community. We have 3 years under our belt covering all things DevOps, including Principles, Processes, Tooling and Use Cases surrounding this vast topic.

harness. Harness Open Source is an end-to-end developer platform with Source Control Management, CI/CD Pipelines, Hosted Developer Environments, and Artifact Registries.

k6. A modern load testing tool, using Go and JavaScript

smartknob. Haptic input knob with software-defined endstops and virtual detents

prometheus. The Prometheus monitoring system and time series database.

backstage. Backstage is an open framework for building developer portals

brew. 🍺 The Package Manager for Everywhere

viper. Go configuration with fangs

learn-go-with-tests. Learn Go with test-driven development

hoppscotch. Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

mermaid. Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

argocd-example-apps. Example Apps to Demonstrate Argo CD

homelab. Fully automated homelab from empty disk to running services with a single command.

argo-cd. Declarative Continuous Deployment for Kubernetes

docsify. 🃏 A magical documentation site generator.

vitepress. Vite & Vue powered static site generator.

awesome-functional-programming. Yet another resource for collecting articles, videos etc. regarding functional programming

spring-framework. Spring Framework

fleet. automatic setup of several of my mini computers

huego. An extensive Philips Hue client library for Go with an emphasis on simplicity

examples. Kubernetes application example tutorials

baralga-app. Simple and lightweight time tracking for individuals and teams, for the cloud in the cloud.

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

vanta. Animated 3D backgrounds for your website

awesome-machine-learning. A curated list of awesome Machine Learning frameworks, libraries and software.

system-design-primer. Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

wfpm-clj-code. Code examples from 'Why Functional Programming Matters' in clojure

openthread. OpenThread released by Google is an open-source implementation of the Thread networking protocol

connectedhomeip. Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standards Alliance.

logging-log4j2. Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

traefik. The Cloud Native Application Proxy

bookmark-server. Simple bookmark server to sync browser bookmarks with WebExtensions

awesome-tailwindcss. 😎 Awesome things related to Tailwind CSS

statusfy. A Marvelous Open Source Status Page System

learngo. ❤️ 1000+ Hand-Crafted Go Examples, Exercises, and Quizzes. 🚀 Learn Go by fixing 1000+ tiny programs.

service. Starter-kit for writing services in Go using Kubernetes.

advent-of-code-2021. TypeScript

go-plugin. Golang plugin system over RPC.

grafana. The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

gaia. Build powerful pipelines in any programming language.

passforios. Pass for iOS - an iOS client compatible with Pass command line application.

go-keyring. Cross-platform keyring interface for Go

ddd-starter-modelling-process. If you're new to DDD and not sure where to start, this process will guide you step-by-step

spring-boot. Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

umami. Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

cobra. A Commander for modern Go CLI interactions

color. Color package for Go (golang)

syncthing. Open Source Continuous File Synchronization

rclone. "rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files

Signal-Desktop. A private messenger for Windows, macOS, and Linux.

star-wars-figures. A simple Alexa Skill using TypeScript and the Star Wars API.

advent-of-code-2020. https://adventofcode.com

libsignal-protocol-java. Java

supabase. The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

advent-of-code-2020. Repository for solving Advent of Code

advent-of-code-2020. Python

advent-of-code-2020. Go

python_advent_calendar. An advent calendar with small coding challenges behind every door

reveal.js. The HTML Presentation Framework

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

modern-html-starter-template. Modern HTML Starter Template

rsocket. RSocket Protocol Definition