Turtletoy

https://turtletoy.net/thumbnail/01fd07dbff.jpg?v=3
Create plottable generative art online using a JavaScript Turtle graphics API.

Emacs is my new window manager

https://www.howardism.org/Technical/Emacs/new-window-manager-1.png
The user uses a virtual machine with a minimal Ubuntu Server installation and runs Emacs as their window manager to keep a clear division between work and personal life. They customize Emacs to utilize every pixel, embed a text-oriented browser, and use a function to organize windows for ultimate distraction, making it their entire Linux desktop.

Damn Small Linux

https://www.damnsmalllinux.org/img/logo.png
The New DSL 2024 is a compact Linux distribution for low-spec x86 computers, packing many applications into a 700MB package. It's based on antiX 23 i386 and aims to keep older computers useful by providing a usable desktop within a small size limit.

I failed to recreate the 1996 Space Jam website with Claude

https://j0nah.com/static/cabce84d131796bfd0868a0ce4489ba4/7d769/claud-blogBounty_Can_Claude_Recreate_the_1996_Space_Jam_WeScreenshot_2025-11-26_at_12.18.41_PM.png
The user attempted to recreate the 1996 Space Jam website using Claude, a language model, but despite various tools and prompts, Claude failed to accurately recreate the website's layout due to limitations in spatial reasoning and precision. The user hypothesized that Claude's vision encoder converts images into semantic tokens, making it difficult for him to work with visual media and ...

Bag of words, have mercy on us

https://substackcdn.com/image/fetch/$s_!w4qD!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F31f48971-998b-4e9b-8f90-ac67d4336c39_1215x1654.jpeg
The author suggests that we should stop personifying AI and instead view it as a "bag of words" that contains all the words ever written, which can be used to generate responses to user queries. This metaphor can help us understand AI's capabilities and limitations, and prevent us from making incorrect assumptions about its intelligence and intentions.

Dollar-stores overcharge customers while promising low prices

https://i.guim.co.uk/img/media/961a1e86d663b8b66f8998eac95f8c851ff91c42/0_0_4200_2800/master/4200.jpg?width=445&dpr=1&s=none&crop=none
A state government inspector found that Family Dollar and Dollar General stores in North Carolina and other states had a high error rate in pricing accuracy, with some stores failing multiple inspections. The issue is attributed to understaffing, overstocking, and a lack of incentives for retailers to correct the problem, affecting low-income customers who rely on these stores for affordable ...

Mechanical power generation using Earth's ambient radiation

Researchers developed a Stirling engine that generates mechanical power from Earth's ambient radiation. The engine uses radiative cooling to create a temperature difference between the engine plates, resulting in a power output of 400 mW/m2.

Truemetrics (YC S23) Is Hiring

https://bookface-images.s3.us-west-2.amazonaws.com/logos/3a7ea44ef55ccd01b022c5879f0c20daa7bf1d4f.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAQC4NIECAGNZOYX4G%2F20251208%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20251208T070854Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjENb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLXdlc3QtMiJGMEQCIH%2FUFRSPXf4I57RwQrfdU3FI5KXBytrkPvqnhZpBx%2FsMAiAF5dlwztGxgZdHbCdUczj5CB5U8q93SgJV5%2Fccg%2Fd6rCruAwif%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAAaDDAwNjIwMTgxMTA3MiIMC0XI%2FU5FsIsuuqwzKsID52lhdcmHR87KkZChXwKAyX5Fu8dc1I4fsvJly3PTsQdcGz%2FZCzNj%2Fl0t5yyCSuGj%2F1HeroIEVxgqa%2Fb%2F%2BoF0A3nDVIb0qcQioHhsVvHN2C0P3dsFJEkaqJrTIUhSisXchHTWkbEMVQEo18TMdqmYpsqM6qfczTN5%2FPOakisMAIH3vwVKstk5y1yAsSM9tn8mlriacWQhxfyvvVJaB7DYgUM5QDtrlzIqiBBa2DAbfJo1qlF%2BJGbd9s5l5X0FjnM0yQcSX7%2FNbufLLXPAZjOlPZJ6PmXk5wo06Cfjhrlb8G6aiYbNeeCTfYIZgVxqySpBSYLILjKSHIkmXrD%2FLwP8azBONwNejIodgP22CvAjtF%2ByhMvh9yZaKphJsLlKJ2v5MLUOIALk2n7NAmuOabFPuE%2BZ%2Bqx2wCebLPF7cW07mnGIfv%2FQFmjKOtHph%2BWACYkKn3dE2usUZ3b7O17wnEZ6bVUzUeLzkgKjQt4jCLmNHQhFvmmArXL6P3%2FZhj7qfN0shQJF1%2B4KDaZR1cTHhn3SjT7olQT54GdKLt%2FDyGLQzSOlekknTpRVUeGmuCfCyNhYCE5o7ybW5vRoik34eivk8eokMK%2FT2ckGOqYBH6e2og3M0cTSlecNHbmFqv4mFoXlMN6StE%2ByhCipndQWZ8eYag4IRR%2BcWu1xTFmyKJ%2F5jTVrkYLYwx4hJL%2Ft4EbymUSGeYY35rXq6aSrPDrNlW1QX6xkjuxt8PNuc%2B3BbuGrc7tLIJ3UB582kp2t4veeGKMd%2B%2Fm8QhVMIUYEVGwFzZUK6Ha%2F9x8Q6OaRnEzB46mNuBWoquOfhqlzVQVacrfv9vPRIw%3D%3D&X-Amz-SignedHeaders=host&X-Amz-Signature=a7ca2f2be019f0f1326cc93683d34a250a483b288580bd0e37bd42053b3abee1
truemetrics is a Berlin-based startup that helps last-mile delivery companies navigate cities more efficiently. They're looking for a skilled Python developer to join their team and contribute to mapping and positioning technology.

The C++ standard for the F-35 Fighter Jet [video]

Google Titans architecture, helping AI have long-term memory

https://storage.googleapis.com/gweb-research2023-media/original_images/Titans-0-Hero.png
Researchers at Google introduced Titans, a new sequence modeling architecture that combines the speed of RNNs with the accuracy of transformers. Titans uses a deep neural network as a memory module to learn and update its parameters in real-time, enabling it to handle extremely long contexts.

Show HN: ReadyKit – Superfast SaaS Starter with Multi-Tenant Workspaces

ReadyKit is the fastest way to ship a SaaS-ready Flask product with billing, authentication, and workspaces built in.

Work disincentives hit the near-poor hardest (2022)

https://www.niskanencenter.org/wp-content/uploads/2021/01/working_parent-960x630.png
The US social safety net has many programs but often creates disincentives for low-income working families to work more hours or take on extra job responsibilities. Existing policies need reform to make income support more work-friendly, such as consolidating cash assistance and fixing health care.

Uninitialized garbage on ia64 can be deadly (2004)

https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/ShowCover.jpg
Calling a function with the wrong signature can lead to unexpected consequences, such as a STATUS_REG_NAT_CONSUMPTION exception on the ia64 architecture. This is because the ia64 has a "NaT" bit that gets set when a register does not contain a valid value, which can cause problems when trying to save or access the register's value.

An Interactive Guide to the Fourier Transform

https://betterexplained.com/wp-content/uploads/images/smoothie-to-recipe-20121030-223058.png
The Fourier Transform breaks down a signal into its underlying cycles, like a smoothie recipe breaking down ingredients. It finds the speed, amplitude, and phase of each cycle to recreate the original signal.

The Anatomy of a macOS App

https://eclecticlight.co/wp-content/uploads/2015/11/prefsresedit.png?w=940
Mac OS X introduced a bundle structure for applications, consisting of a hierarchy of directories containing executable code and resources, with a standard form including a MacOS directory, Resources, and Info.plist file. The bundle structure has evolved over the years to include additional components such as code signatures, notarization, and store receipts, providing improved security and ...

I wasted years of my life in crypto

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How I block all online ads

To block ads, consider using browser extensions like uBlock Origin and DNS filtering with Pi-hole or AdGuard Home. Additionally, routing traffic through a cloud provider via VPN can also help reduce ad visibility.

Scala 3 slowed us down?

https://kmaliszewski9.github.io/assets/s213low.png
The author migrated a service from Scala 2.13 to 3.7.3, but performance issues arose due to a library bug affecting chained evaluations. Upgrading the library resolved the issue, highlighting the importance of benchmarking in Scala version migrations.

Solving Rush Hour, the Puzzle (2018)

https://www.michaelfogleman.com/static/rush/rush-hour-photo.jpg?bust=1531100498
The user created a complete database of every "interesting" starting position for the Rush Hour puzzle, which includes 2,577,412 puzzles covering 9,698,093,879 reachable states, and made the database available for download. The user's code uses bitboards, simulated annealing, and other techniques to efficiently generate and analyze the puzzles, and the user estimates that solving the 7x7 case ...

CATL expects oceanic electric ships in 3 years

https://cleantechnica.com/wp-content/uploads/2025/12/CATL-Marine-Battery-System.jpg
CATL aims to provide zero-carbon marine transportation with electric ships navigating open seas within three years. The company has supplied batteries for over 900 vessels and is collaborating with shipping partners to advance electric shipping.

Palantir Could Be the Most Overvalued Company That Ever Existed

https://247wallst.com/wp-content/uploads/2024/11/shutterstock-2301924159-huge-licensed-scaled.jpg
Palantir's valuation is extremely high at 360 times trailing earnings and 153 times forward earnings. The stock is likely to experience a protracted selloff due to its unsustainable price.

Nested Learning: A new ML paradigm for continual learning

https://storage.googleapis.com/gweb-research2023-media/original_images/NestedLearning-0-Hero.png
Researchers introduced Nested Learning, a new approach to machine learning that bridges the gap between model architecture and optimization algorithm. This paradigm treats a model as a system of interconnected, multi-level learning problems optimized simultaneously, enabling more capable and efficient learning algorithms.

Build a DIY magnetometer with a couple of seasoning bottles

https://spectrum.ieee.org/media-library/a-pair-of-coil-wound-cylinders-sits-atop-two-milk-crates-wires-connect-them-to-a-circuit-board-connected-to-three-large-12-volt.png?id=62212907&width=1200&height=1148
A proton-precession magnetometer measures Earth's magnetic field by detecting the oscillations of hydrogen nuclei in water. It uses a simple circuit with coils, a MOSFET, and a capacitor to amplify the audio tone generated by the precessing protons.

A two-person method to simulate die rolls (2023)

https://blog.42yeah.is/assets/post_assets/die/proposal.png
A group of friends created a method to generate random numbers using a polar coordinate system and a clock face, which they used to play a simplified D&D campaign. They also designed a game called verbal tennis where players use their generated numbers to hit a virtual ball, with the goal of winning the game.

Show HN: Cdecl-dump - represent C declarations visually

https://camo.githubusercontent.com/3ea3f349ad8a01fcd2db35cb88a60ee0b8c4be1dbc31ba666193394c8333cd02/68747470733a2f2f7261772e6769746875622e636f6d2f6262752f636465636c2d64756d702f6d61737465722f73637265656e73686f742e706e67
The program doesn't do strict validation of the declarator in certain cases. Unlike the rules of C, it allows functions to return arrays and arrays to have functions as their elements.

The state of Schleswig-Holstein is consistently relying on open source

https://heise.cloudimg.io/width/610/q85.png-lossy-85.webp-lossy-85.foil1/_www-heise-de_/imgs/18/4/9/9/1/4/1/8/shutterstock_238107649-2b6b9adbc6206f74.jpeg
Schleswig-Holstein state administration is switching to open source software, saving over 15 million euros in license costs annually. The state expects to save more in the long run despite initial problems and criticism during the migration process.

Minimum Viable Arduino Project: Aeropress Timer

https://netninja.com/wp-content/uploads/2025/12/button-825x510.jpg
The user created a 30-second timer using an Adafruit Trinket M0 to help with brewing coffee, avoiding the need for a timer. The project is simple, with a button, piezoelectric buzzer, and Neopixel LED, and the code is straightforward with a few flourishes.

Java Hello World, LLVM Edition

A Java program is created to generate and execute LLVM IR, the intermediate language behind compilers like clang, using Java's Foreign Function & Memory (FFM) API to call the LLVM C API. The program prints "Hello, World!" by JIT-compiling the LLVM IR to native machine code using the LLVM JIT compiler API.

Estimates are difficult for developers and product owners

https://thorsell.io/assets/images/bio-photo.jpg
A Product Owner needs estimates from developers to plan releases and prioritize features, but developers dislike estimating due to uncertainty and the risk of being held accountable for unrealistic expectations. The problem lies not in estimates themselves, but in how they're used as predictions or deadlines, which can hurt developers and reduce psychological safety in organizations.

Spinlocks vs. Mutexes: When to Spin and When to Sleep

https://substackcdn.com/image/fetch/$s_!WK_e!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe860e064-eb09-463f-98ea-b68698dc2a9a_1537x901.png
The article discusses the differences between spinlocks and mutexes, explaining that spinlocks burn CPU but have low latency for short holds, while mutexes use syscalls and context switches but keep CPU available for real work. The choice between spinlocks and mutexes depends on the critical section duration and contention level, with spinlocks suitable for short holds and mutexes for longer holds.