| 1. |  | Japan's government plans to encourage 4-day workweek, but experts split (mainichi.jp) | 
 | 881 points by m3at on June 21, 2021  | 502 comments | 
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| 2. |  | Fluid Paint (david.li) | 
 | 586 points by pjerem on June 21, 2021  | 74 comments | 
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| 3. |  | Yggdrasil – Early-stage implementation of an end-to-end encrypted IPv6 network (github.com/yggdrasil-network) | 
 | 432 points by dragonsh on June 21, 2021  | 102 comments | 
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| 4. |  | Git undo: We can do better (waleedkhan.name) | 
 | 762 points by arxanas on June 21, 2021  | 476 comments | 
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| 5. |  | Ask HN: I was hit with a patent troll lawsuit, how do I deal with it? | 
 | 833 points by jblake on June 21, 2021  | 308 comments | 
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| 6. |  | Internal Amazon documents shed light on how company pressures out office workers (seattletimes.com) | 
 | 508 points by flowerlad on June 21, 2021  | 372 comments | 
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| 7. |  | LibreCellular (librecellular.org) | 
 | 404 points by pabs3 on June 21, 2021  | 57 comments | 
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| 8. |  | USC professor’s DIY online teaching hack to engage students goes viral (2020) (usc.edu) | 
 | 463 points by grzm on June 21, 2021  | 100 comments | 
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| 9. |  | Rhizome – A pedagogical example of a JIT for Ruby, implemented in Ruby (github.com/chrisseaton) | 
 | 300 points by thunderbong on June 21, 2021  | 43 comments | 
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| 10. |  | Did Windows 10 slow down with each feature update? (ntdotdev.wordpress.com) | 
 | 406 points by goranmoomin on June 21, 2021  | 421 comments | 
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| 11. |  | JPEG XL (jpegxl.info) | 
 | 359 points by tosh on June 21, 2021  | 234 comments | 
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| 12. |  | The “API Mandate” memo at Amazon (chrislaing.net) | 
 | 381 points by laingc on June 20, 2021  | 130 comments | 
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| 13. |  | Mindat.org, the largest open database of minerals, rocks, and meteorites (mindat.org) | 
 | 186 points by madpen on June 21, 2021  | 19 comments | 
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| 14. |  | Turn your old, cracked Android phone into a backup server (hannahtech.co) | 
 | 234 points by thunderbong on June 21, 2021  | 129 comments | 
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| 15. |  | Ask HN: How to learn proper systems programming? | 
 | 336 points by systems_learn on June 21, 2021  | 93 comments | 
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| 16. |  | A reference counting bug which leads to local privilege escalation in io_uring (flattsecurity.medium.com) | 
 | 119 points by todsacerdoti on June 21, 2021  | 46 comments | 
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| 17. |  | Finding the Bottom Turtle (dave.tf) | 
 | 164 points by zdw on June 21, 2021  | 63 comments | 
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| 18. |  | Don't Piss Off Bradley, the Parts Seller Keeping Atari Machines Alive (vice.com) | 
 | 203 points by zdw on June 21, 2021  | 116 comments | 
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| 19. |  | Path Tracing Quake in Blender (matthewearl.github.io) | 
 | 155 points by kipi on June 20, 2021  | 39 comments | 
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| 20. |  | The Lazarus heist: How North Korea almost pulled off a billion-dollar hack (bbc.com) | 
 | 171 points by pseudolus on June 21, 2021  | 47 comments | 
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| 21. |  | OrganicMaps is Android and iOS offline maps for travel without trackers or ads (organicmaps.app) | 
 | 336 points by wertik13 on June 21, 2021  | 116 comments | 
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| 22. |  | Column – High-performance, columnar, in-memory store with bitmap indexing in Go (github.com/kelindar) | 
 | 157 points by ngaut on June 21, 2021  | 51 comments | 
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| 23. |  | Enthusiastic amateurs advance science as they hunt for exotic mushrooms (npr.org) | 
 | 102 points by jdnier on June 21, 2021  | 20 comments | 
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| 24. |  | A History of The Rochester, NY Camera and Lens Companies (1974) (nwmangum.com) | 
 | 93 points by brudgers on June 20, 2021  | 66 comments | 
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| 25. |  | My experiments with sprouting legumes (upgrademyfood.com) | 
 | 112 points by koolhead17 on June 20, 2021  | 75 comments | 
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| 26. |  | Our journey from office-centric to remote-first (docker.com) | 
 | 99 points by kiyanwang on June 20, 2021  | 68 comments | 
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| 27. |  | Reading Grossman's “Stalingrad” and ”Life and Fate” (adamtooze.substack.com) | 
 | 93 points by mathgenius on June 20, 2021  | 58 comments | 
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| 28. |  | Gramps – Free Genealogy Software (gramps-project.org) | 
 | 137 points by danboarder on June 20, 2021  | 41 comments | 
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| 29. |  | The Ice-V: a simple, compact RISC-V RV32I implementation in Silice (github.com/sylefeb) | 
 | 75 points by kqr2 on June 21, 2021  | 26 comments | 
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| 30. |  | Accidentally exponential behavior in Spark (heap.io) | 
 | 75 points by drob on June 21, 2021  | 33 comments | 
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 | More |