Jakub Zalas

ponytail. Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

swarm-forge. A simple tool for coordinating several AI agents.

LEANN. [MLsys2026]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.

Radca-prawny-AI. Lokalny, w pełni prywatny asystent prawny typu RAG działający na GPU. Wykorzystuje model Bielik-11B, bazę wektorową Qdrant oraz polskie kodeksy prawne do generowania precyzyjnych opinii prawnych z cytowaniem źródeł.

PaddleOCR. Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

opencode. The open source coding agent.

modularity. Claude Code plugin for designing modular systems from functional requirements and reviewing existing codebases for modularity problems with actionable improvement recommendations. Based on the Balanced Coupling model.

lode. A tool to automate 95% of the Lode Coding method. Conversational context management and knowledge capture as a byproduct of delivery.

claude-ai-spring-boot. Claude Code template for Spring Boot and other staff (included in the tags)

fact. A file system based event sourcing database engine for elixir. Drink up!

living-architecture. Extra software architecture from your code as living documentation. AI-assisted.

test-progress-bar-intellij-plugin.

Immich-Gallery. The most feature rich (unofficial) Apple TV client for Immich.

DomoSchemaMinder. A multi-tenant schema registry.

modular-monolith-with-ddd. Full Modular Monolith application with Domain-Driven Design approach.

jnv. Interactive JSON filter using jq

immich. High performance self-hosted photo and video management solution.

frankenphp. 🧟 The modern PHP app server

SmallerWebHexagon. Ruby

bluezone. An example application implementing Hexagonal Architecture

bluezone_pro. Java

GildedRose-Refactoring-Kata. Starting code for the GildedRose Refactoring Kata in many programming languages.

htmx. </> htmx - high power tools for HTML

eventsourcing-book. Kotlin

ali. Generate HTTP load and plot the results in real-time

refactoring-socrates-uk-2024. Repo for the Refactoring Beyond the Commit tutorial at Socrates UK 2024

BoboliaTaxes. A simple tax calculator for the mythical land of Bobolia. Example from Clean Code 2d. ed.

kactor. A small proof of concept implementing the actor model 🎭 using Kotlin coroutines

docueye. DocuEye is a tool that lets You visualize views and documentation created using Structurizr DSL

evolutionary-architecture-by-example. Navigate the complex landscape of .NET software architecture with our step-by-step, story-like guide. Unpack the interplay between modular monoliths, microservices, domain-driven design, and various architectural patterns. Go beyond the one-size-fits-all solutions and understand how to blend these approaches based on your unique needs.

gh-dash. A rich terminal UI for GitHub that doesn't break your flow.

statusnook. Effortlessly deploy a status page and start monitoring endpoints in minutes

efcore-dto-demo. Demo code for my "Stop using Entity Framework as a DTO provider"-talk

slice-company. HTML

professional-programming. A collection of learning resources for curious software engineers

govuk-frontend. GOV.UK Frontend contains the code you need to start building a user interface for government platforms and services.

postgresql-event-sourcing. A reference implementation of an event-sourced system that uses PostgreSQL as an event store built with Spring Boot. Fork the repository and use it as a template for your projects. Or clone the repository and run end-to-end tests to see how everything works together.

consulting-handbook. A guide for technical professionals looking to start consulting

app-cloudflared. Connect remotely to your Home Assistant instance without opening any ports using Cloudflared.

live-plugin. IntelliJ plugin for writing IntelliJ plugins at runtime ⚡️

nextcloud-react-app. Nextcloud file browser written in ReactJS

public-apis. A collective list of free APIs

fotf. Code of the book From Object To Functions

nextcloud-dlna. DLNA addon for your self-hosted Nextcloud app instance that allows you to stream Nextcloud users content on client devices in your network. It supports the group folders as well.

jq. Command-line JSON processor

domain-modeling-made-functional-in-kotlin. Examples from "Domain Modeling Made Functional Tackle Software Complexity with Domain-Driven Design and F#" book translated to Kotlin

crazyeights.workshop. Moved to Codeberg

crazy. Moved to Codeberg

acceptance-testing. Sample Code for a DSL based approach to Acceptance Testing

asciidoc-book-skeleton. A skeleton project for writing a book in Asciidoc format

pesticide. A Library To Write Domain-Driven Tests, written in Kotlin on top of Junit5

book. Kotlin

code. Kotlin

kopia. Cross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication. CLI and GUI included.

forkhandles. Foundational libraries for Kotlin

FunctionalDesign. The source code for the examples in Functional Design

arrow. The perfect companion for your Kotlin journey - Inspired by functional, data-oriented and concurrent programming

ktor-arrow-example. Real World implementation - "The mother of all demo apps". Written in Kotlin, with Ktor, Arrow, SqlDelight, KotlinX Serialization, etc.

gilded-rose-tdd. A TDD implementation of the Gilded Rose stock control system

konsent. An acceptance test library for Kotlin

github-webhook-listener. Light server for reacting to GitHub's Webhooks

eventstorming-glossary-cheat-sheet.

m-r. Simple CQRS example

awesome-katas. A curated list of code katas

community. Docs related to DDD-CQRS-ES Discord Community

The-Inevitable-Event-Centric-Book. Some day, someone might write an authoritative book about this aspect. Let's call that inevitable book Event Centric as a placeholder title (this is a quote...)

vhs. Your CLI home video recorder 📼

ADVENT. Kotlin

php-docker-extensions. PHP

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

EventSourcing.NetCore. Examples and Tutorials of Event Sourcing in .NET

gradle-structurizr-cli. Enables Gradle to run Structurizr CLI commands

sharp-fu-y30-mqtt-esp. Sharp FU-Y30 air purifier with ESP8266 and MQTT communication

awesome-scalability. The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

elasticsearch-elixir. No-nonsense Elasticsearch library for Elixir

scenic-side-screen. Top-level app that runs multiple scenic apps underneath it

scenic. Core Scenic library

phpqa. Docker image that provides static analysis tools for PHP

chrome-currency-exchange-extension. JavaScript

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

lucyna. Lucyna is a library that tries to help you with your daily tasks with AWS ECS and AWS Lambda (more might come in future).

scaffold-clean-architecture. Gradle plugin to create a clean application in Java that already works, It follows our best practices!

async-dataflow. Component to deliver asynchronous responses in real time to client applications

reactive-commons-elixir. Common abstractions for reactive microservices

jc. CLI tool and python library that converts the output of popular command-line tools, file-types, and common strings to JSON, YAML, or Dictionaries. This allows piping of output to tools like jq and simplifying automation scripts.

btc0.

IDDD_NYSE. My take on the SpringTrader project (previously NanoTrader).

gradle-docker-plugin. Gradle plugin for managing Docker images and containers.

scala_typeclassopedia. Abstractions from Category theory with simple description & implementation, links to further resources.

VillageDSL. Examples of Kotlin DSL design

xoom-cluster. The VLINGO XOOM platform SDK cluster management for Reactive, scalable resiliency of JVM tools and applications running on XOOM LATTICE and XOOM ACTORS.

xoom-common. The VLINGO XOOM platform SDK common tools shared across various projects.

xoom-streams. The VLINGO XOOM platform SDK for Reactive Streams built on XOOM ACTORS.

xoom-symbio. The VLINGO XOOM platform SDK delivering Reactive storage that is scalable, high-throughput, and resilient for CQRS, Event Sourcing, Key-Value, and Objects used by services and applications.

xoom-http. The VLINGO XOOM platform SDK for Reactive, scalable, high-throughput, and resilient HTTP server supporting RESTful services running on XOOM LATTICE and XOOM ACTORS.

xoom-actors. The VLINGO XOOM platform SDK for the type-safe Actor Model, delivering Reactive concurrency, high scalability, high-throughput, and resiliency using Java and other JVM languages.

xoom-lattice. The VLINGO XOOM platform SDK Reactive Domain-Driven Design models that are highly scalable and concurrent. Includes compute grid, actor caching, spaces, cross-node grid cluster messaging, message exchanges, CQRS, and Event Sourcing support.

openbrowser. Let AI agents browse the web. An autonomous toolkit for browser-based AI agents.

ArchUnit. A Java architecture test library, to specify and assert architecture rules in plain Java

library. A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

varint. Varint stream processing library

C4-PlantUML. C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicate software architectures

jenkinsfiles. Examples for jenkins pipelines, comparing scripted and declarative syntax

icu. The home of the ICU project source code.

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

interpreters-and-you. Scala

cucumber-engine. Shared go binary that can be used by all language implementations

centurion. Kotlin Avro Toolkit

IDDD_Samples. These are the sample Bounded Contexts from the book "Implementing Domain-Driven Design" by Vaughn Vernon: http://vaughnvernon.co/?page_id=168

clean-architecture-example. Clean Architecture Example (Java): Example of what clean architecture would look like (in Java)

continuouspipe. The open-source continuous deployment pipeline for containerized applications

web-app-functional-style. Scala

logo. Behat logo sources

material-design-lite. Material Design Components in HTML/CSS/JS

scala-fun-backend. API implementation of scala.fun website:

DependencyWheel. A package dependency visualization using d3.js. Currently supports Composer for PHP.

BehatSpecExtension. [READ-ONLY] Subtree split from https://github.com/richardmiller/BehatSpec

primitive. Reproducing images with geometric primitives.

tooly-composer-script. Simple composer script to manage phar files using project composer.json.

docker-sync. Run your application at full speed while syncing your code for development, finally empowering you to utilize docker for development under OSX/Windows/*Linux

awesome-ddd. A curated list of Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), Event Sourcing, and Event Storming resources

php-scoper. 🔨 Prefixes all PHP namespaces in a file/directory to isolate the code bundled in PHARs.

event-sourcing. Provides basic functionality for event sourced aggregates.

deptrac. Keep your architecture clean.

git-standup. Recall what you or your team did on the last working day

PhpDependencyAnalysis. Static code analysis to find violations in a dependency graph

skills-api. Skills microservice with API

symfony. The Symfony PHP framework

dev-community-data. Collecting data on all user groups and conferences to be used by anyone.

TestDoubleBundle. A symfony bundle that eases creation of test doubles.

DunglasActionBundle. Symfony controllers, redesigned

player. Blackfire Player is a powerful Web Crawling, Web Testing, and Web Scraper application. It provides a nice DSL to crawl HTTP services, assert responses, and extract data from HTML/XML/JSON responses.

Tolerance. Fault tolerance library and micro-services helpers

httplug. HTTPlug, the HTTP client abstraction for PHP

tutum-builder. [Deprecated] Build, test and push docker images

awesome-remote-job. A curated list of awesome remote jobs and resources. Inspired by https://github.com/vinta/awesome-python

OpenUG. An open source framework for building user group websites.

docker-machine-nfs. Activates NFS on docker-machine

PPP. Excercises for Principles, Patterns, and Practices, iHop, Pood.

programmers-proverbs. Proverbs from the programmer

Doctrine2StepHydration. Example repository to demonstrate 2-step fetch-join hydration with Doctrine2

cuke4ninja. The Secret Ninja Cucumber Scrolls

event-store. a php event store

broadway. Infrastructure and testing helpers for creating CQRS and event sourced applications.

uuid. :snowflake: A PHP library for generating universally unique identifiers (UUIDs).

2015-talks.

2014-talks.

LazyBin. Runs various commands to save me a few keystrokes

fish-sf. Symfony2 console completion for fishshell

UrlPlayer. Chromecast URL Player

security-advisories. A database of PHP security advisories

QafooLabsNoFrameworkBundle. Bundle to use Symfony controllers without depending on the Framework. Moved to GyroProject MVC-Bundle

pick-my-talks. PHP

json_spec. BDD/ATDD for your json-based REST APIs

freeboard. A damn-sexy, open source real-time dashboard builder for IOT and other web mashups. A free open-source alternative to Geckoboard.

pickle. PHP Extension installer

TheodoBehatProfilingExtension. PHP

GeneratedHydrator. :bullettrain_side: Fast Generated Object Hydrator for PHP

dotfiles. My Dotfiles

pfff. Tools for code analysis, visualizations, or style-preserving source transformation.

http-api-design. HTTP API design guide extracted from work on the Heroku Platform API

PhpMetrics. Beautiful and understandable static analysis tool for PHP

php-vcr. Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.

litecqrs-php. Small convention based CQRS library for PHP

predaddy. DDD/CQRS/EventSourcing framework with annotation driven message bus

state-of-the-union. Describes various php Domain Driven Development initiatives all around the universe

code-sniffer-sniff-dsl. DSL for writing sniffs for PHP_CodeSniffer

money. Value Object that represents a monetary value (using a currency's smallest unit).

parker. Stylesheet analysis tool.

landslide. Generate HTML5 slideshows from markdown, ReST, or textile

mysh. myShop in sf2

mountebank. Over the wire test doubles

flysystem. Abstraction for local and remote filesystems

php-option. Option Type for PHP

boom. HTTP(S) load generator, ApacheBench (ab) replacement, written in Go

container-interop. Containers interoperability

goreplay. GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configuration changes and infrastructure changes.

phoebe. PHP IRC bot. Modular, extensible, supports multiple IRC networks in single process.

vagrant. Vagrant is a tool for building and distributing development environments.

resume.github.com. Resumes generated using the GitHub informations

athletic. PHP Benchmarking Framework

todo-php. Various implementations of a Todo application, written in PHP.

Old-Deleted-FullScreenMario. An HTML5 remake of the original Super Mario Brothers - expanded for wide screens.

sir-trevor-js. Rich content editing entirely re-imagined for the web

hexagonal-symfony. Sandbox for experimenting with Cockburn's hexagonal ideas with Symfony2

medusa. Composer Package and Git Repository Mirror via Satis

admin-bundle. FSi Admin Bundle is complete solution that provides mechanisms to generate admin panel for any Symfony2 project.

best-practices. Tidbits of developer best practices from around the web

phpstorm-behat. Behat support for PhpStorm IDE

Symfony2Extension. Symfony2 extension for PhpSpec

doucheswag. Swag for douchebags.

OpCacheGUI. GUI for PHP's OpCache

puphpeteer-installer. Installs versioned Puppet modules with PHP and Composer

marketing. The symfony.com content

Cupon. Aplicación de prueba para aprender a programar con Symfony2

http-mock. Mock HTTP requests on the server side in your PHP unit tests

Lurker. Resource Tracking

Mondrian. A static php code analysis tool using the Graph Theory

symfony2-autocomplete. A very simple script to autocomplete Symfony2 commands in a bash shell.

phpspec. SpecBDD Framework for PHP