Sarthium

What it does

Sarthium is unique because it treats learning like a space exploration game. By teaching coding through the lens of astronomy (building star systems, landing rockets), you provide a practical, exciting context that traditional coding bootcamps lack.

Sarthium offers the world

• 
  Coding Planets2018 · play.google.com · ▲108

  Mobile game that teaches you the logic of coding.

• IM
  I made a spaced repetition tool to master coding problems2024 · lanki.xyz · ▲206

  As you solve LeetCode questions, you can mark them as hard, medium, or easy. The tool will then recommend questions you should review based on (1) how hard the question was for you and (2) how much time has passed since you last reviewed it. I'd recommend normally attempting LeetCode problems and just marking them as hard, medium, or easy for you at first so the tool knows which problems to recommend you review! Here's the theory behind spaced repetition and learning if interested: https://www.codecademy.com/article/spaced-repetition

• 
  Mapedia2022 · mapedia.org · ▲77

  The best place to start learning something new

• 
  Stellart2021 · ▲56

  App that creates an acoustic star map of the universe

• 
  Empire of Code2015 · ▲63

  A space game with a mix of strategy, tactics and coding.

• EL
  Enlight – Learn to Code by Building Projects2017 · enlight.ml · ▲29

• 
  SimCity, but with Permits▲936

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 3d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 16d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 17d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 10d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 14d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 24d ago · space.bl2.net

• GP
  Gemini Pro 3 imagines the HN front page 10 years from now▲3,346

  Life & fun · Dec 2025 · dosaygo-studio.github.io

• 
  Jmail – Google Suite for Epstein files▲1,557

  Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!

  Life & fun · Dec 2025 · jmail.world

• 
  Loki.Build▲743

  Design and ship studio-grade landing pages with AI

  AI · Dec 2025 · loki.build

• 
  PlanEat AI▲733

  AI turns your health goals into a 7-day menu & grocery list

  AI · Dec 2025 · planeatai.com

• 
  22 GB of Hacker News in SQLite▲730

  Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…

  Dev tools · Dec 2025 · hackerbook.dosaygo.com

• 
  CyberCut AI▲723

  AI video studio for viral social clips

  AI · Dec 2025 · cybercut.ai