A Periodic Table of System Design Principles

jfmt is an opinionated java source code formatter for the command line

State of the art mutation testing system for the JVM

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

Koog is the official Kotlin framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-brows…

In-memory Java DataFrame library

Mail Organizer for spam, etc.

developers.events is a community-driven platform listing developer/tech conferences and Calls for Papers (CFPs) worldwide with a list, a calendar and a map view. It helps organizers, speakers, spon…

Identifies and prioritizes God Classes Highly Coupled classes, and Class Cycles in Java codebases you should refactor first.

A collection of MCP servers.

Advent of Code 2024, in both Kotlin and Clojure

An artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

Virtual-thread based safe concurrency & streaming

A fast multimodal LLM for real-time voice

Personal tracker for Spirit Island games

Automated mass refactoring of source code.

Implement a ChatGPT-like LLM in PyTorch from scratch, step by step

An email and SMTP testing tool with API for developers

Advent of Code

A combinatorics library for Kotlin

Advent of Code 2022: Solutions in Oracle SQL

A declarative, Kotlin-idiomatic API for writing dynamic console applications.

A thread-safe, non-blocking, coroutine-based Redis client implementation for Kotlin

Multiplatform YAML parser & serializer for kotlinx.serialization written in pure Kotlin