Life & fun · December 29, 2025
Sarthium
Learning Hub for Coding, Cosmos, Physics all at one place
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.
Does the same job
all alternatives →
- IMI 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
AstroCalculApr 2026 · apps.apple.com · ▲3Learn math by exploring the Solar System. Ad-free & Privacy
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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
