Backend Engineer Hiring Challenge

Collection of awesome LLM apps with AI Agents and RAG using OpenAI, Anthropic, Gemini and opensource models.

Run your own AI cluster at home with everyday devices 📱💻 🖥️⌚

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

PDF Filler for Claude Desktop (using Claude Desktop Extensions)

openFDA is an FDA project to provide open APIs, raw data downloads, documentation and examples, and a developer community for an important collection of FDA public datasets.

FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae, Traycer AI…

🔣 A collection of GitHub issue, pull request and security templates

💎 Robust job processing in Elixir, backed by modern PostgreSQL, SQLite3, and MySQL

Rack middleware for blocking & throttling

🤖 Dependabot's core logic for creating update PRs.

A template for building web agents with Stagehand on Browserbase

Get up and running with OpenAI gpt-oss, DeepSeek-R1, Gemma 3 and other models.

Build, Manage and Deploy AI/ML Systems

Ruby client for Typesense: https://github.com/typesense/typesense

High-level Elasticsearch Ruby framework based on the official elasticsearch-ruby client

An e-commerce AI assistant built with Langchain.rb

Ruby wrapper for the Qdrant vector search database API

A Rails application that uses both Postgres and Mongo

A document management system api that enables a user to manage docs.

The Apple Lossless Audio Codec (ALAC) is a lossless audio codec developed by Apple and deployed on all of its platforms and devices.

⚡ A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps

A curated list of Large Language Model resources, covering model training, serving, fine-tuning, and building LLM applications.

Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

An automated price tracker that uses bright data, playwright, react and flask.

🧙 Build, run, and manage data pipelines for integrating and transforming data.

LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the v…