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Open-source tools & agent skills to build the things you’re paying for.

Beets

Project15.8K

Catalog and enrich a music library with metadata matching, command-line tools, and plugins.

Added 2026-10-07
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GitHub

What you can build

  • Build a Python plugin that exports selected catalog fields, such as artist, album, and track metadata, to CSV for an archive or spreadsheet workflow.
  • Build an import review queue that flags low-similarity metadata matches and records human decisions before the collection is updated.
  • Combine duplicate and missing-track checks into a scheduled JSON report that an existing archive process can consume.
  • Build a conversion workflow that selects files using their metadata and queues them for the documented audio-transcoding capability.
  • Create a plugin that emits a JSON catalog for a private collection browser, using Beets’ catalog data as its source.

Try this prompt

Build a small Python Beets plugin that exports selected library metadata to a CSV file for archival review. First inspect the repository’s plugin-development guidance and existing conventions. Keep the export read-only: do not modify audio files, tags, or the library database. Add focused tests with fixtures, document configuration and usage, and explain assumptions and limitations.

Get started

  1. Install Beets

    Use the official Getting Started guide for installation options, including the Python package and operating-system repositories.

  2. Configure and import

    Follow the Getting Started guide to configure a library and import music; review the proposed metadata matches during import.

  3. Extend with plugins

    Consult the plugin documentation for available capabilities and the plugin-development guide for building a collection-specific Python extension.

License & notes

MITFree and MIT-licensed. Optional metadata sources and third-party services may have their own terms or costs; hosting and compute may also cost money. No prices are stated here.

  • Metadata matches can require human review. Plugins may need configuration, and external metadata sources may require network access and have separate terms or costs.
  • Beets manages music collections; it does not provide a licensed streaming catalog. MIT licensing does not cover third-party services or content.

Ollama

Project182.4K

Run open models on your machine and connect them to applications through a REST API.

Added 2026-10-07
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D3

Project113.8K

A low-level JavaScript toolkit for custom, data-driven graphics in SVG, Canvas, and HTML.

Added 2026-10-07
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Supabase

Project111.2K

Build Postgres-backed apps with authentication, APIs, realtime, storage, and functions.

Added 2026-10-07
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Whisper

Project110.1K

Build speech transcription, language identification, and translation workflows with an open-source model.

Added 2026-10-07
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Playwright

Project97.2K

Build cross-browser end-to-end tests and browser automation scripts with one API.

Added 2026-10-07
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Puppeteer

Project95.7K

Build JavaScript workflows that control Chrome or Firefox.

Added 2026-10-07
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Uptime Kuma

Project92.2K

Self-hosted checks for websites, network services, DNS, containers, and push monitors.

Added 2026-10-07
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PaddleOCR

Project90.7K

Build OCR and document-parsing workflows that turn images and PDFs into structured data.

Added 2026-10-07
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Mermaid

Project90.6K

Create editable diagrams from Markdown-inspired text for documentation and JavaScript applications.

Added 2026-10-07
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Syncthing

Project89.2K

Synchronize files between two or more computers, then adapt local workflows around those folders.

Added 2026-10-07
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Netdata

Project80.8K

Open-source, real-time infrastructure monitoring with per-second metrics, anomaly detection, and alerting.

Added 2026-10-07
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Hoppscotch

Project80.6K

Develop APIs with reusable requests, collections, environments, and response tests.

Added 2026-10-07
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Grafana

Project77.1K

Query, visualize, and alert on telemetry across data sources.

Added 2026-10-07
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Tesseract OCR

Project76.8K

An open-source OCR engine for extracting text from images and building document workflows.

Added 2026-10-07
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Apache Superset

Project75.1K

Explore SQL data, build visualizations, and create dashboards with an extensible open-source BI platform.

Added 2026-10-07
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reveal.js

Project72.4K

An open-source HTML presentation framework for building browser-based slide decks.

Added 2026-10-07
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Vaultwarden

Project68.6K

Self-hosted Bitwarden-compatible server for personal and organization password vaults.

Added 2026-10-07
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Docling

Project68.5K

Convert diverse documents and media into structured content for tools you build.

Added 2026-10-07
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Apache ECharts

Project67.5K

Build interactive, customizable charts for browser applications.

Added 2026-10-07
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AnythingLLM

Project66.8K

Build a desktop or self-hosted AI workspace for document chat, agents, and recurring tasks.

Added 2026-10-07
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Docusaurus

Project66.4K

Build and customize websites for project documentation, blogs, and support pages.

Added 2026-10-07
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Prometheus

Project66.4K

Collect, query and alert on metrics from your services and systems.

Added 2026-10-07
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Traefik

Project65.1K

An HTTP reverse proxy and load balancer that updates service routes from infrastructure providers.

Added 2026-10-07
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FFmpeg

Project64.8K

Build workflows for inspecting, converting, filtering, and streaming audio and video.

Added 2026-10-07
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Scrapy

Project64.6K

Build Python crawlers that extract structured data from websites.

Added 2026-10-07
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Memos

Project63.6K

A self-hosted Markdown timeline for capturing, finding, and selectively sharing notes.

Added 2026-10-07
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GitHub

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Coolify

Project62.7K

Deploy applications, databases, and services on servers you control.

Added 2026-10-07
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PocketBase

Project61.3K

A self-hostable Go backend with embedded SQLite, realtime subscriptions, and built-in user and file management.

Added 2026-10-07
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Pi-hole

Project61.2K

Self-hosted DNS sinkhole for blocking unwanted content across a network.

Added 2026-10-07
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Penpot

Project60.8K

Design and prototype digital products with collaboration, open formats, and programmable workflows.

Added 2026-10-07
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Plane

Project60.5K

Open-source project management for issues, cycles, modules, roadmaps, and team documentation.

Added 2026-10-07
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Rclone

Project60.2K

Copy, sync, check, mount, and serve files across local storage and cloud providers.

Added 2026-10-07
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Build application search with full-text, semantic, or hybrid retrieval.

Added 2026-10-07
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Odoo

Project54.9K

A modular suite of open-source business apps that can be combined into an ERP.

Added 2026-10-07
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PDF.js

Project54K

Build web-based PDF viewers and custom document workflows on an HTML5 PDF rendering platform.

Added 2026-10-07
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DBeaver

Project52K

A cross-platform desktop client for querying, inspecting, and moving database data.

Added 2026-10-07
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Huginn

Project50K

Build self-hosted agents that monitor the web, process events, and take actions.

Added 2026-10-07
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Explore business data with visual questions and SQL, then turn analysis into interactive dashboards.

Added 2026-10-07
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LocalAI

Project49.4K

Run AI models on your own hardware and access text, vision, and audio capabilities through a unified API.

Added 2026-10-07
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Slidev

Project49K

Create developer-focused presentations from Markdown, with code demos, interactive components, presenter tools, and export options.

Added 2026-10-07
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