Open source. Open possibilities.

Arrow is a Python library that simplifies creation, manipulation, formatting, and conversion of dates, times, and timestamps with timezone awareness and human-friendly API.

Wagtail is an open source content management system built on Django, offering a fast authoring interface, flexible StreamField content, a content API for headless sites, and integrated search.

An asynchronous Python client for Stockholm's Open Data Platform API. It currently retrieves disabled-parking locations (about 2045) with address, district, coordinates and validity dates, requires an API key, and is structured so other datasets from the same platform can be added.

A cloud-based, passwordless facial recognition authentication system with AI-powered liveness detection, encrypted biometric storage, admin dashboard, and full Firebase integration.

LangExtract is a Python library from Google that uses LLMs to extract structured information from unstructured text, grounding every extraction to its exact source location and generating interactive HTML visualizations.

fastapi-faults is an MIT-licensed Python package for FastAPI that defines typed RFC 9457 Problem Details from domain exceptions, reuses one immutable Fault definition for runtime responses and OpenAPI documentation, and supports feature-local registries, typed extension fields, and built-in framework error normalization.

SQLModel is a library for interacting with SQL databases in Python, designed to reduce code duplication by combining SQLAlchemy and Pydantic.

WhisperLiveKit is a self-hosted, ultra-low-latency speech-to-text pipeline. It provides real-time transcription, speaker diarization, and translation via WebSocket and OpenAI/Deepgram-compatible APIs.

Eclipse Deeplearning4J (DL4J) is a JVM-based deep learning ecosystem supporting Java, Scala, Kotlin, and more. It includes model import from Keras, TensorFlow, ONNX; ND4J for linear algebra; SameDiff for automatic differentiation; DataVec for ETL; and runs on CPU/GPU across Windows, Linux, macOS.

TextBlob is a Python library for natural language processing, offering a simple API for sentiment analysis, part-of-speech tagging, noun phrase extraction, classification, tokenization, and more, built on NLTK and pattern.

Mem0 is an open-source memory layer for AI assistants and agents, offering persistent personalized memory via Python/TS SDKs, CLI, self-hosted server, or cloud. Supports multi-level memory, hybrid retrieval, temporal reasoning, and many LLM providers.

A low-latency, modular voice-agent pipeline (VAD -> STT -> LLM -> TTS) that implements the OpenAI Realtime event set over WebSocket and WebRTC.

Django is a high-level Python web framework for rapid development and clean, pragmatic design. Includes installation docs, tutorials, deployment guides, community links, contribution info, and test suite instructions.

Posting is a terminal-based HTTP client in the spirit of Postman and Insomnia. It stores requests as plain YAML files, works over SSH, and supports environments, autocompletion, tree-sitter highlighting, Vim keys, custom themes, Python hooks and cURL/Postman/OpenAPI import.

An extremely fast Python package and project manager written in Rust, designed to replace multiple tools like pip, poetry, and pyenv.

llm-apipool aggregates 40+ free LLM APIs into one OpenAI-compatible endpoint. Auto-rotates keys, handles rate limits, tracks usage, and supports CLI, TUI, proxy, and LangChain integration.

Windmill is an open-source developer platform used to turn scripts into webhooks, workflows, and internal UIs, serving as an alternative to Retool and Temporal.

Recotem is a recipe-driven recommender system tool built on irspack. One YAML defines data, training, and output; train produces a signed artifact, serve mounts it as a REST API with hot-swap. Single binary, no database.

sqlc generates type-safe code from SQL queries, supporting multiple languages via plugins. It compiles SQL to idiomatic code, reducing boilerplate and errors.

AetherGrid is a distributed AI workload orchestrator built with strict Domain-Driven Design, featuring lease-based execution ownership, event-driven reconciliation, API key auth, and a React dashboard.