Apache Arrow
Apache Software Foundation · Data catalogs & formats
Language-independent columnar in-memory format and libraries that let DuckDB, Polars, pandas, Spark and databases exchange tables without copying
Tool Atlas · curated, cited, verified
Every entry is written from primary sources, states its license and pricing model without guesswork, lists real limitations, and shows when its links were last checked.
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Models, assistants, inference engines, agent frameworks and the tooling around them.
AI assistants & chat · Model providers & APIs · Local LLM inference & serving · Training & fine-tuning
Languages, editors, terminals, version control, CI/CD, testing and documentation.
Programming languages & runtimes · IDEs & editors · Terminals & shells · Version control & code hosting
Containers, provisioning, networking, security, identity and backup.
Containers & virtualization · Infrastructure & provisioning · Reverse proxies & web servers · DNS & domains
macOS automation, Apple Silicon machine learning, Swift and distributed Mac computing.
macOS automation · Apple Silicon ML & MLX · Swift & SwiftUI development · macOS system utilities
Collecting, moving, storing, querying, visualising and validating data.
Data collection & crawling · Search & web-data APIs · Web archiving · ETL/ELT & orchestration
Discovery, writing, typesetting, statistics, econometrics and financial research data.
Literature discovery & review · Citation management · LaTeX & typesetting · Academic writing & publishing
Investing, portfolios, property valuation, GIS, construction and business systems.
Financial analysis & investing · Portfolio & wealth management · Real estate valuation & property data · GIS & mapping
Notes, knowledge management, design and collaboration.
Productivity suites & task management · Personal knowledge management · Design & prototyping · Collaboration & communication
Featured
Apache Software Foundation · Data catalogs & formats
Language-independent columnar in-memory format and libraries that let DuckDB, Polars, pandas, Spark and databases exchange tables without copying
Apify Technologies s.r.o. · Data collection & crawling
Cloud platform and marketplace for running web-scraping and automation programs (Actors), with storages, proxies, scheduling, an API and an MCP server for agents
Caddy project (sponsored by ZeroSSL) · Reverse proxies & web servers
Go web server and reverse proxy that obtains and renews TLS certificates automatically and is configured with a short Caddyfile or a JSON API
Anthropic · Coding agents & AI IDEs
Anthropic's agentic coding tool that reads a codebase, edits files and runs commands from the terminal, IDEs, a desktop app, the web and CI, with MCP, hooks, skills and subagents
Docker, Inc. · Containers & virtualization
Container platform combining the Docker Engine runtime, the Compose and Build tooling, Docker Desktop for macOS and Windows, and the Docker Hub registry
DuckDB Foundation / DuckDB Labs · Analytical engines & OLAP
In-process analytical SQL database that queries Parquet, CSV and Arrow data directly from Python, R, Node or the CLI
Git project (Software Freedom Conservancy) · Version control & code hosting
Distributed version control system that records snapshots of a project's history locally and synchronizes them with remotes such as GitHub, GitLab or a bare repository over SSH
Homebrew maintainers · macOS system utilities
Community-maintained package manager for macOS and Linux that installs command-line tools (formulae) and desktop apps (casks) from the terminal
Discovery paths
Inference engines and model tooling that work on Apple Silicon and your own servers.
Discovery, references, LaTeX, reproducible documents and dissemination.
Market data, fundamentals, filings and the engines that process them.
Open-source infrastructure you can run on your own hardware.
Collections
From literature search to a submitted manuscript: discovery engines, a reference manager, a TeX distribution and editor, reproducible-document tooling, converters for the Word-only journal, and the identifiers and repositories that make the output citable.
14 tools · OpenAlex, Semantic Scholar, Google Scholar, Zotero, TeX Live, Overleaf
Running and serving language, speech and vision models on Macs with M-series chips, from the array framework up to the applications that wrap it. Useful for anyone building a local or cluster-based inference setup on macOS rather than renting GPUs.
10 tools · MLX, MLX LM, MLX Whisper, llama.cpp, Ollama, LM Studio
Building LLM applications that can be measured: model APIs, retrieval components, and the evaluation and observability layer that turns prompt tinkering into something closer to engineering.
13 tools · Claude Platform, OpenAI API, OpenRouter, Sentence Transformers, Voyage AI, pgvector
A working stack for intraday market-microstructure and asset-pricing research: where the minute bars and fundamentals come from, how to store tens of billions of rows on one machine, and which libraries carry the econometrics. Assembled from tools used in academic finance work rather than trading.
13 tools · FirstRate Data, Databento, Massive (formerly Polygon.io), SEC EDGAR, FRED (Federal Reserve Economic Data), Apache Parquet
A pragmatic setup for software and data work on a Mac: package management, a terminal and shell prompt, editors, version control, container runtime, automation and launcher utilities. Nothing exotic, everything maintained.
14 tools · Homebrew, Ghostty, tmux, Starship, Visual Studio Code, Zed
Tools for appraisal and property-market research in Québec and beyond: public registries and assessment rolls, listing portals, spatial analysis, cost data for the cost approach, and the statistical libraries behind hedonic and comparable-sales models.
13 tools · Rôle d'évaluation foncière (Québec), Registre foncier du Québec en ligne, Centris.ca, REALTOR.ca, QGIS, PostGIS
Recently verified
Zyte Group Ltd · Data collection & crawling
Web-data company behind Scrapy offering Zyte API for ban-resistant fetching, browser rendering and automatic extraction, plus Scrapy Cloud for hosting spiders
Corporation for Digital Scholarship · Citation management
Free, open-source reference manager with browser connectors, word-processor plugins, a PDF reader, group libraries and optional paid file storage
Zoom Communications, Inc. · Collaboration & communication
Video meetings and webinar platform, now packaged as Zoom Workplace with team chat, phone, whiteboard, AI Companion and developer APIs and SDKs
Stefan Jansen (ML4Trading) · Financial analysis & investing
Community-maintained fork of Quantopian's Zipline, an event-driven Python backtester with data bundles and the Pipeline API
CERN (with OpenAIRE) · Research dissemination
Free general-purpose research repository operated by CERN that assigns DOIs to datasets, software, papers and other outputs, with a REST API, OAI-PMH, GitHub release archiving and CC0 metadata
Zed Industries · IDEs & editors
Native, GPU-rendered code editor written in Rust by Zed Industries, with built-in collaboration, language servers and optional AI assistance
Ran Aroussi and contributors · Market & fundamentals data
Open-source Python library that downloads price history, fundamentals, options chains and fund data from Yahoo Finance's unofficial endpoints for research and education
Apple Inc. · Swift & SwiftUI development
Apple's integrated development environment and toolchain for building, debugging, testing and submitting apps for iOS, macOS and other Apple platforms