Ask HN: What was an interesting project you started and finished over a weekend?

Hacker News Discussion ↗

Overall Pattern

  • Most replies describe small, highly-focused projects built in 1–3 days, often extended later.
  • Common motivations: scratch a personal itch, help family, fix a nagging workflow, or learn a new stack.
  • Many “weekend projects” became long-lived tools, open-source libraries, small SaaS products, or even got acquired.

Personal Utilities and Developer Tools

  • Numerous CLI and web tools: bookmark managers, todo apps, config validators, cron monitors, log viewers, HTTP/TCP proxies, argument parsers, cert automation, and WebSocket broadcasters.
  • Several deployment/infra helpers: lambda-based CI agents, simple Heroku-like PaaS, uptime/cron monitoring, and tunneling via WireGuard.
  • Many “one-page” utilities: recipe simplifiers, numeric base converters, typing/clicking tests, static site generators.

Media, Messaging, and Content

  • Home media indexers and players, including workarounds for iOS restrictions and AirPrint limitations (fake printers, DNS/mDNS hacks).
  • Music/sleep/noise devices, minimalist MP3 players for relatives, and tools to sync playlists from chat logs.
  • Messaging tweaks: CLI or web messengers, WhatsApp wrappers, SMS/WhatsApp shims, and small TV apps to check VPN/IP (sometimes rejected by app stores).

Games, Visualizations, and Learning Aids

  • Many quick games: Wordle/emoji/mini-chess variants, asteroid clones, racing/air-hockey sims, zero-player universes, D&D engines, charades with AI.
  • Educational tools: arithmetic drills, toothbrush timers, touch-typing helpers, language aids, icebreakers, and various map/timeline visualizations.

Hardware and Physical Projects

  • DMX light controllers, ESP32 Snapcast clients, Arduino/RP2040 gadgets, macropads from LEGO, auto-clicker mice, environmental sensors, pet ramps, and instrument refurbishments.

AI and LLM Use

  • Several used GPT/Copilot to accelerate coding, or built LLM/RAG-based products (email reputation, document chat, podcast generators, analytics).
  • Some note hallucination issues and limits for production use.

Impact, Recognition, and Debate

  • Multiple stories where a trivial-seeming internal tool became widely used, influenced company practice, or boosted careers.
  • One election-counting tool for a national senate race became part of public verification efforts.
  • A side discussion on “15-minute cities” contrasts enthusiasm for walkable planning and analytics with concern over affordability and traffic-control measures.