Michał Olszewski

webernetes. Kubernetes in the browser.

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

pierre. pierre’s open source code

bhatti. Self-Hostable MicroVMs for your Agents

oh-my-openagent. omo/lazycodex: The coding agent for tokenmaxxers;the one and only agent harness for complex codebases. For your Codex, for your OpenCode

shader-lab. A powerful toolkit to create, stack, and animate shaders.

harness. simple primitives and common reusable tasks for go projects using mage

noq. noq, a QUIC implementation in Rust

tui-studio. Visual design tool for building Terminal User Interfaces

TablePro. Free and open source database client built natively for developers

spank. Slap your MacBook, it yells back. Uses Apple Silicon accelerometer via IOKit HID.

opencode. The open source coding agent.

chronon. Chronon is a data platform for serving for AI/ML applications.

exo. Run frontier AI locally.

ml-sharp. Sharp Monocular View Synthesis in Less Than a Second

llm-council. LLM Council works together to answer your hardest questions

seastar. High performance server-side application framework

dungbeetle. A distributed job server built specifically for queuing and executing heavy SQL read jobs asynchronously. Separate out reporting layer from apps. MySQL, Postgres, ClickHouse.

lura. Ultra performant API Gateway with middlewares. A project hosted at The Linux Foundation

LoRaSoundkit. This Soundkit sensor measures continuously audible sound by analyzing the data using FFT

nanochat. The best ChatGPT that $100 can buy.

bocker. Docker implemented in around 100 lines of bash

tofu-exec. OpenTofu CLI commands via Go.

tview. Terminal UI library with rich, interactive widgets — written in Golang

ffmpeg.wasm. FFmpeg for browser, powered by WebAssembly

libsql. libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

just. 🤖 Just a command runner

thorium. A scalable file analysis and data generation platform that allows users to easily orchestrate arbitrary docker/vm/shell tools at scale.

jqfmt. like gofmt, but for jq

vllm. A high-throughput and memory-efficient inference and serving engine for LLMs

llama.cpp. LLM inference in C/C++

webauthn. FIDO2 Conformant WebAuthn and Passkey backend library for golang

opencode. A powerful AI coding agent. Built for the terminal.

jj. A Git-compatible VCS that is both simple and powerful

mcp-go. A Go implementation of the Model Context Protocol (MCP), enabling seamless integration between LLM applications and external data sources and tools.

sam2. The repository provides code for running inference with the Meta Segment Anything Model 2 (SAM 2), links for downloading the trained model checkpoints, and example notebooks that show how to use the model.

BirdNET-Analyzer. BirdNET analyzer for scientific audio data processing.

go-internal. Selected Go-internal packages factored out from the standard library

fromthetransistor. From the Transistor to the Web Browser, a rough outline for a 12 week course

setec. A secrets management service that uses Tailscale for access control

orchestrion. Automatic compile-time instrumentation of Go code

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

tile38. Real-time Geospatial and Geofencing

diffusers. 🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

openfreemap. Free and open-source map hosting solution with custom styles for websites and apps, using OpenStreetMap data

git-absorb. git commit --fixup, but automatic

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

timelinize. Store your data from all your accounts and devices in a single cohesive timeline on your own computer

cpp-rs-driver. API-compatible rewrite of https://github.com/scylladb/cpp-driver as a wrapper for Rust driver.

goth. Package goth provides a simple, clean, and idiomatic way to write authentication packages for Go web applications.

llama3-from-scratch. llama3 implementation one matrix multiplication at a time

OpenVoice. Instant voice cloning by MIT and MyShell. Audio foundation model.

go-echarts. 🎨 The adorable charts library for Golang.

works. The code of several works on oimo.io/works

kubehelp. A command line tool that generates kubectl commands from a text description by using Claude 3 Opus.

wuffs. Wrangling Untrusted File Formats Safely

mosh. Mobile Shell

teller. Cloud native secrets management for developers - never leave your command line for secrets.

httpmole. A HTTP mole service

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

excalidraw. Virtual whiteboard for sketching hand-drawn like diagrams

surya. OCR, layout analysis, reading order, table recognition in 90+ languages

gocql. Package gocql implements a fast and robust ScyllaDB client for the Go programming language.

dnglab. Camera RAW to DNG file format converter

nilaway. Static analysis tool to detect potential nil panics in Go code

Pixel-Sorting. A "real time" pixel sorter for Unity

ArtSpew. An infinite number of monkeys randomly throwing paint at a canvas

conntrack. Track incoming and outgoing connections

s5cmd. Parallel S3 and local filesystem execution tool.

netlink. Simple netlink library for go.

ChatDev. ChatDev 2.0: Dev All through LLM-powered Multi-Agent Collaboration

sd-scripts. Python

tag-observability. Technical Advisory Group for Observability 🔭⚙️

system-design-101. Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

trc. In-process request tracing

oapi-codegen. Generate Go client and server boilerplate from OpenAPI 3 specifications

spiffe. The SPIFFE Project

spire. The SPIFFE Runtime Environment

tempo. Grafana Tempo is a high volume, minimal dependency distributed tracing backend.

changedetection.io. Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!

diffoci. diff for Docker and OCI container images

lago. Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

atlas. Declarative schema migrations with schema-as-code workflows

cruise-control. Cruise-control is the first of its kind to fully automate the dynamic workload rebalance and self-healing of a Kafka cluster. It provides great value to Kafka users by simplifying the operation of Kafka clusters.

fake-it-til-you-make-it. A program that demonstrates that GitHub contribution graph can be cheated

dive. A tool for exploring each layer in a docker image

prql. PRQL is a modern language for transforming data — a simple, powerful, pipelined SQL replacement

odigos. Distributed tracing without code changes. 🚀 Instantly monitor any application using OpenTelemetry and eBPF

pop. Send emails from your terminal 📬

langchain. The agent engineering platform.

workshops. Repository used during the Service Weaver workshops.

graph. A library for creating generic graph data structures and modifying, analyzing, and visualizing them.

workout-lol. A simple way to create a workout plan

hierarchical-namespaces. Home of the Hierarchical Namespace Controller (HNC). Adds hierarchical policies and delegated creation to Kubernetes namespaces for improved in-cluster multitenancy.

lazygit. simple terminal UI for git commands

omnipaxos. OmniPaxos is a distributed log implemented as a Rust library.

gopdf. A simple library for generating PDF written in Go lang

invoice. Command line invoice generator

pocketbase. Open Source realtime backend in 1 file

OpenLLM. Run any open-source LLMs, such as DeepSeek and Llama, as OpenAI compatible API endpoint in the cloud.

patroni. A template for PostgreSQL High Availability with Etcd, Consul, ZooKeeper, or Kubernetes

stern. ⎈ Multi pod and container log tailing for Kubernetes -- Friendly fork of https://github.com/wercker/stern

rat-sql. A relation-aware semantic parsing model from English to SQL

argo-workflows. Workflow Engine for Kubernetes

uptrace. Open source APM: OpenTelemetry traces, metrics, and logs

teletrace. Open-Source Tracing Platform

raft. Raft library for maintaining a replicated state machine

opentelemetry-go-instrumentation. OpenTelemetry Auto Instrumentation using eBPF

opentelemetry. opentelemetry for gorm

tracerr. Golang errors with stack trace and source fragments.

otelchi. OpenTelemetry instrumentation for go-chi/chi

cognitive-load. 🧠 Cognitive load is what matters

martian. Martian is a library for building custom HTTP/S proxies

guidance. A guidance language for controlling large language models.

gotmplfmt. Formatter for Go HTML templates

gain. Gain is a high-performance io_uring networking framework written entirely in Go.

junodb. JunoDB is PayPal's home-grown secure, consistent and highly available key-value store providing low, single digit millisecond, latency at any scale.

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

llm-numbers. Numbers every LLM developer should know

TemporalKit. An all in one solution for adding Temporal Stability to a Stable Diffusion Render via an automatic1111 extension

ws. A tiny WebSocket library for Go.

jet. Type safe SQL builder with code generation and automatic query result data mapping

goqu. SQL builder and query library for golang

social-app. The Bluesky Social application for Web, iOS, and Android

windmill. Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

roshi. Roshi is a large-scale CRDT set implementation for timestamped events.

viz. Visualize TCP connections in a distributed network.

nightlight. Nightlight: Astronomic Image Processing

LAVIS. LAVIS - A One-stop Library for Language-Vision Intelligence

comprehensive-rust. This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.

validator. :100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving

Grounded-Segment-Anything. Grounded SAM: Marrying Grounding DINO with Segment Anything & Stable Diffusion & Recognize Anything - Automatically Detect , Segment and Generate Anything

openai-cookbook. Examples and guides for using the OpenAI API

telegram-chatgpt-concierge-bot. Interact with OpenAI's ChatGPT via Telegram and Voice.

segment-anything. The repository provides code for running inference with the SegmentAnything Model (SAM), links for downloading the trained model checkpoints, and example notebooks that show how to use the model.

dalai. The simplest way to run LLaMA on your local machine

ComfyUI. The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.

stable-diffusion-webui. Stable Diffusion web UI

batch-face-swap. Automaticaly detects faces and replaces them

AutoGPT. AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.

mls-implementations. Coordination of implementation and interop specific details

cupscale. Image Upscaling GUI based on ESRGAN

json. Experimental implementation of a proposed v2 encoding/json package

release-please. generate release PRs based on the conventionalcommits.org spec

scan. Tiny lib to scan SQL rows directly to structs, slices, and primitive types

go-httpwares. Go HTTP Server Middleware and Client Tripperware

scylla-rust-driver. Async CQL driver for Rust, optimized for ScyllaDB!

slog. Go

pyroscope. Continuous Profiling Platform. Debug performance issues down to a single line of code

toxiproxy. :alarm_clock: :fire: A TCP proxy to simulate network and system conditions for chaos and resiliency testing

flamescope. FlameScope is a visualization tool for exploring different time ranges as Flame Graphs.

ctlptl. Making local Kubernetes clusters fun and easy to set up

volsync. Asynchronous data replication for Kubernetes volumes

UniversalPauseButton. A pause button that pauses the unpausable. Handy for video game cut scenes especially, but can be used for any application, not just games.

openapi-generator. OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

openai-go. Go client libraries for OpenAI

weaver. Programming framework for writing and deploying cloud applications.

maelstrom. A workbench for writing toy implementations of distributed systems.

llama. Inference code for Llama models

go-perftuner. Helper tool for manual Go code optimization.

shellcheck. ShellCheck, a static analysis tool for shell scripts

meetup_golang_warsaw. Golang Warsaw Meetup

log. A minimal, colorful Go logging library 🪵

vhs. Your CLI home video recorder 📼

liburing. Library providing helpers for the Linux kernel io_uring support

gofumpt. A stricter gofmt

terraform-provider-scylladbcloud. Terraform provider for ScyllaDB Cloud.

flatbuffers. FlatBuffers: Memory Efficient Serialization Library

infracost. Cloud cost intelligence for engineers, AI coding agents, and CI/CD 💰📉 Shift FinOps Left!

cortex. A horizontally scalable, highly available, multi-tenant, long term Prometheus.

shuttle. A web proxy in Golang with amazing features.

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

signoz. SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

myko. A simple attribution engine.

go-libp2p. libp2p implementation in Go

ngrok-go. Embed ngrok secure ingress into your Go apps as a net.Listener with a single line of code.

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

nanoGPT. The simplest, fastest repository for training/finetuning medium-sized GPTs.

surrealdb. A scalable, distributed, collaborative, document-graph database, for the realtime web

waggy. The dead simple, easy-to-use library for writing HTTP handlers and routers in Go that can be used in standard HTTP server environments or in WAGI (Web Assembly Gateway Interface) environments

ffuf. Fast web fuzzer written in Go

wasm-to-oci. Use OCI registries to distribute Wasm modules

wasmtime. A lightweight WebAssembly runtime that is fast, secure, and standards-compliant

tinygo. Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.

WasmEdge. WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

postlite. Postgres wire compatible SQLite proxy.

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

squash. The debugger for microservices

conc. Better structured concurrency for go

plz-cli. Copilot for your terminal

awesome-actions. A curated list of awesome actions to use on GitHub

pics. File formats dissections and more...

sarama. Sarama is a Go library for Apache Kafka.

go-containerregistry. Go library and CLIs for working with container registries

config-sync. Config Sync - used to sync Git, OCI and Helm charts to your clusters.

backstage. Backstage is an open framework for building developer portals

karpenter-provider-aws. Karpenter is a Kubernetes Node Autoscaler built for flexibility, performance, and simplicity.

go-cpu-utilization. Go

buf. The best way of working with Protocol Buffers.

golink. A private shortlink service for tailnets