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How We Rooted Copilot

https://research.eye.security/how-we-rooted-copilot/
98•uponasmile•2h ago•40 comments

Rust running on every GPU

https://rust-gpu.github.io/blog/2025/07/25/rust-on-every-gpu/
366•littlestymaar•8h ago•123 comments

Purple Earth Hypothesis

https://en.wikipedia.org/wiki/Purple_Earth_hypothesis
24•colinprince•2d ago•0 comments

Font-size-adjust Is Useful

https://matklad.github.io/2025/07/16/font-size-adjust.html
100•Bogdanp•3d ago•32 comments

Bringing a decade old bicycle navigator back to life with open source software

https://raymii.org/s/blog/Bringing_a_Decade_Old_Bicycle_Navigator_Back_to_Life_with_Open_Source_Software_and_DOOM.html
127•mtlynch•7h ago•16 comments

Inverted Indexes: A Step-by-Step Implementation Guide

https://www.chashnikov.dev/post/inverted-indexes-a-step-by-step-implementation-guide
15•klaussilveira•3d ago•2 comments

Open Sauce is a confoundingly brilliant Bay Area event

https://www.jeffgeerling.com/blog/2025/open-sauce-confoundingly-brilliant-bay-area-event
257•rbanffy•3d ago•141 comments

Breaking the WASM/JS communication performance barrier

https://github.com/ealmloff/sledgehammer_bindgen
86•weinzierl•3d ago•12 comments

Ageing accelerates around age 50 ― some organs faster than others

https://www.nature.com/articles/d41586-025-02333-z
58•rntn•1h ago•7 comments

CCTV footage captures the first-ever video of an earthquake fault in motion

https://www.smithsonianmag.com/smart-news/cctv-footage-captures-the-first-ever-video-of-an-earthquake-fault-in-motion-shining-a-rare-light-on-seismic-dynamics-180987034/
327•chrononaut•15h ago•55 comments

Earth Has Tilted 31.5 Inches. That Shouldn't Happen

https://www.popularmechanics.com/science/environment/a65515974/why-earth-has-tilted-science/
74•dataflow•1h ago•37 comments

Upsides and Downsides

https://calv.info/upsides-and-downsides
23•nohide•1d ago•1 comments

It's time for modern CSS to kill the SPA

https://www.jonoalderson.com/conjecture/its-time-for-modern-css-to-kill-the-spa/
635•tambourine_man•21h ago•414 comments

The rise and fall of the Hanseatic League

https://worksinprogress.co/issue/the-rise-and-fall-of-the-hanseatic-league/
125•loeber•3d ago•37 comments

Yes, the Book of PF, Fourth Edition Is Coming Soon

https://bsdly.blogspot.com/2025/07/yes-book-of-pf-4th-edition-is-coming.html
82•turtleyacht•3d ago•21 comments

Simon Tatham's Portable Puzzle Collection

https://www.chiark.greenend.org.uk/~sgtatham/puzzles/
137•sogen•11h ago•25 comments

The Rise of Shippable Microfactories

https://www.thesisdriven.com/p/the-rise-of-shippable-microfactories
21•mhb•5h ago•4 comments

The append-and-review note

https://karpathy.bearblog.dev/the-append-and-review-note/
53•vinhnx•3d ago•21 comments

Instapaper Rakuten Kobo Integration

https://blog.instapaper.com/post/789685899750424576/instapaper-rakuten-kobo-integration
33•robin_reala•3d ago•15 comments

Users claim Discord's age verification can be tricked with video game characters

https://www.thepinknews.com/2025/07/25/discord-video-game-characters-age-verification-checks-uk-online-safety-act/
111•mediumdeviation•13h ago•112 comments

Do not download the app, use the website

https://idiallo.com/blog/dont-download-apps
1155•foxfired•20h ago•629 comments

Keep Pydantic out of your Domain Layer

https://coderik.nl/posts/keep-pydantic-out-of-your-domain-layer/
58•erikvdven•3d ago•81 comments

It's a DE9, not a DB9 (but we know what you mean)

https://news.sparkfun.com/14298
412•jgrahamc•1d ago•263 comments

Never write your own date parsing library

https://www.zachleat.com/web/adventures-in-date-parsing/
234•ulrischa•1d ago•273 comments

Why MIT switched from Scheme to Python (2009)

https://www.wisdomandwonder.com/link/2110/why-mit-switched-from-scheme-to-python
262•borski•1d ago•194 comments

Vanilla JavaScript support for Tailwind Plus

https://tailwindcss.com/blog/vanilla-js-support-for-tailwind-plus
285•ulrischa•1d ago•160 comments

The future is not self-hosted

https://www.drewlyton.com/story/the-future-is-not-self-hosted/
410•drew_lytle•1d ago•366 comments

Efficient Computer's Electron E1 CPU – 100x more efficient than Arm?

https://morethanmoore.substack.com/p/efficient-computers-electron-e1-cpu
230•rpiguy•1d ago•90 comments

Generic Containers in C: Vec

https://uecker.codeberg.page/2025-07-20.html
49•uecker•3d ago•59 comments

Animated Cursors

https://tattoy.sh/news/animated-cursors/
225•speckx•1d ago•51 comments
Open in hackernews

Simon Tatham's Portable Puzzle Collection

https://www.chiark.greenend.org.uk/~sgtatham/puzzles/
137•sogen•11h ago

Comments

3036e4•9h ago
I installed that on both my computer and phone after someone mentioned it in some HN comment a few months ago. On my phone it has been the only game I have played in several years that wasn't in an emulator (mostly DOSBox).

Also convinced my kids to install it on their phones, hoping that it will distract them somewhat from the apps they otherwise use. Not much success with that. I guess there isn't enough bling. If it was full of animated coins and sound effects triggering on every interaction it would probably work much better for competing with normal app-driven rubbish mobile games.

glimshe•2h ago
I wonder if they would be happy with modern graphics but no twitchy bling. I mean, 3d shaded and colorful tiles. Kids these days associate spartan graphics with old school/boring gameplay.
ggm•9h ago
I very much hope people link more like this here. My favourite right now is the love solitaire, and jongmah

https://love2d.org/forums/viewtopic.php?t=95641

https://www.jongmah.com/

beefsack•9h ago
I wonder how many thousands of hours I have put into this wonderful collection. My kids play them too.

There's some jank relating to fractional scaling on Wayland unfortunately, but I keep one monitor without scaling so when I want to play I just launch the puzzles on that.

happa•9h ago
For human-generated logic puzzles that you can solve in your browser, I can recommend the following site:

https://puzsq.logicpuzzle.app

tecleandor•8h ago
As a note, after some years of playing with this puzzles, I recently discovered why its name sounded familiar to me... It's Simon Tatham from PuTTY (the Windows SSH client).
pbh101•8h ago
Found this recently and have been loving it! The one that has stuck the most is Keen but Galaxies is a close second.
NoboruWataya•7h ago
Recommend the Android port as well, available on F-Droid: https://chris.boyle.name/projects/android-puzzles/
ZeroGravitas•5h ago
Mostly works nicely on black and white android e-readers too.
ofrzeta•5h ago
related: https://www.janko.at/Raetsel/index.htm huge collection of games and playable online (general desciptions are in German only but the rules of every game are translated in English and Japanese)
tangus•5h ago
Also related: https://puzz.link/db/
Disposal8433•4h ago
And another one: https://www.brainbashers.com/puzzles.asp
MITSardine•4h ago
I've had this on my phone for years, it's a great collection of puzzles. I haven't tried them all (games on phones), but it's certainly the best I have. No ads, no useless gamification, but well polished and varied puzzles, and quite a bit of control over the difficulty.

My favourite has to be "Keen", it's a sudoku-like where a grid has to be filled with no repeated numbers on either columns or rows, and arbitrarily shaped cells must be filled to satisfy an arithmetic constraint like "sums to 7", "the product is 84" or "one divided by the other is 3" (if sized two).

Towers is nice too, similar concept (re repetition), but the constraints are now visibility ranges on the boundaries of the grid, as you put down towers of varying height. I find it more difficult.

Some of the games are more mechanical, where you can mindlessly iterate to a solution step by step. Like "Net" (rotate pipes to connect them all to the center). Towers takes some more guess work, and I find Keen is there in the middle.

kybernetikos•2h ago
Net can be done with reasoning rather than mindless iteration. You start by locking in end points surrounded by other end points except for one free space. if you have a straight line that can connect two end points then you lock it in the other orientation. If a line is locked next to a T pipe, the back of the t pipe goes against the line. If a corner piece is next to a locked pipe, you know that the side opposite the incoming pipe is empty, so it could be the back of a T or the side of a line piece, etc.
MITSardine•2h ago
Yeah, that's what I meant. On the other hand, something like Towers has you trying different configurations because there's not always enough information to motivate the next step.
MostlyStable•1h ago
I haven't tried Towers, but I had thought that every game in his collection was such that guessing was never required. The logic/rules might not always be obvious, but supposedly they are there.
Jigsy•2h ago
I like Solo (Sudoku), but that's hard to play on my phone sadly.

I end up doing hard modes of Flood and Signpost a lot, though.

V__•4h ago
The same puzzles can be played here with a more friendly UI: https://medmunds.github.io/puzzles/
cbarrick•3h ago
I discovered these as a child by just combing through the Ubuntu package repositories looking for games.

These days, I play the Android port all the time. It's my go-to to occupy my time on short flights.

insane_dreamer•3h ago
Does anyone know of a collection of mini games like that with available source code, and preferably in a more approachable language than C? Thinking that something like this might be great for getting my 9-year interested in coding using a non-visual prog lang (so not Scratch).
glimshe•2h ago
Teaching kids to program for over 40 years:

https://www.roug.org/retrocomputing/languages/basic/basicgam...

npteljes•2h ago
I love this collection on my phone. It's among the first software that I install to it. Alongside Simon's stuff, Gauguin is also a favorite. It's a sudoku type of game, but with different shapes and math instead of the basic sudoku rules. I love these when I have some time to kill, and I don't want to look at the internet.
privatelypublic•2h ago
I absolutely love Flood type games- but I want huge maps(1000x1000 - 65535x65535). Alas, all of them also kill their playability by wanting absurd money ($5, ha!) and/or flow breaking ads.
merelysounds•1h ago
If you’re on iOS:

- Puzzles[1] - includes these games and more (sudoku, nonograms, minesweeper, others).

- Nonoverse[2] - it’s just nonograms, but built by hand (not randomly generated); it’s my app, inspired by the above.

[1]: https://apps.apple.com/app/puzzles-reloaded/id6504365885

[2]: https://apps.apple.com/app/nonoverse-nonogram-puzzles/id6748...

jannniii•1h ago
Thanks for sharing! Awesome new time sinkhole for my phone…