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18 Toy Projects to Rekindle Your Programming Joy

2025-06-15

The author advocates for a hands-on approach to learning, believing that creating is the best way to understand. The article lists 18 toy programming projects of varying difficulty and time commitment, ranging from OS kernels and game emulators to physics engines, compilers, and GUI toolkits. These projects aim to reignite the joy of programming and enhance technical skills. Difficulty levels are provided, making them accessible to programmers of all levels, along with links to helpful resources.

(www.jsbarretto.com)

Development toy projects

Local Network File Syncing for Two Windows Machines: Ditch the Cloud!

2025-06-27

Local Network File Syncing for Two Windows Machines: Ditch the Cloud!

Tired of syncing files between two Windows machines? Sink offers a revolutionary solution! Bypass the cloud, email, and USB drives. Running on your local network, Sink automatically detects other machines running Sink and syncs files near-instantly. It handles conflicts, preventing data loss, and allows you to ignore specific files and folders using a .sinkignore file (similar to .gitignore). Currently a work in progress, future plans include a UI, custom paths, system tray integration, and support for more than two devices.

(github.com)

Development file syncing local network

The Evolving Role of Junior Developers in the Age of AI

2025-05-18

The Evolving Role of Junior Developers in the Age of AI

While AI is automating coding tasks, junior developers remain crucial. Instead of writing boilerplate code, their focus shifts to debugging, system design, and collaboration. Companies neglecting junior roles risk their future talent pipeline. Successful juniors leverage AI as a learning tool, verifying its output and understanding the underlying logic. They must develop strong code reading and comprehension skills. The junior developer role is evolving, requiring adaptability and a focus on higher-level thinking, with AI handling the more mundane tasks.

(addyo.substack.com)

Development Junior Developers

Windows 11 Gets Resizable Taskbar Icons!

2025-04-04

Windows 11 Gets Resizable Taskbar Icons!

Microsoft is testing resizable taskbar icons in the latest Windows 11 Insider Preview Beta. Users can now choose to always show smaller icons, never show smaller icons, or show smaller icons when the taskbar is full. When full, icons shrink to fit, preventing overflow into a secondary menu. This mimics macOS's dock behavior. The Start menu also received an update with a larger layout, offering the option to hide recently used app suggestions and display all apps on one page. Note: users might temporarily lose the new battery charge status icons introduced in January, but Microsoft plans to reinstate them soon.

(www.theverge.com)

Development Taskbar

Blind Spots in LLMs for AI Coding

2025-03-19

This article highlights several blind spots the author encountered while using Large Language Models (LLMs) for AI coding. Issues include insufficient black-box testing, stateless tools, over-reliance on automation, and neglecting documentation. Solutions suggested include preparatory refactoring, using static types, keeping files small, and adhering to specifications. The author hints at future Cursor rule suggestions to address these problems.

(ezyang.github.io)

Development

Reinventing the Wheel: A Path to Deeper Understanding

2025-05-24

Reinventing the Wheel: A Path to Deeper Understanding

This article challenges the common advice against reinventing the wheel. The author argues that building toy versions of existing tools (protocols, cryptography, web servers, etc.) is the best way to truly understand their underlying principles. Even imperfect implementations provide invaluable learning experiences, revealing flaws and limitations in established solutions. This approach, applicable beyond computer science, encourages hands-on experimentation, starting small, iterating, and ultimately leading to profound understanding and practical expertise. The key takeaway: reinvent for insight, reuse for impact.

(endler.dev)

Development

Whenever: Typed, DST-Safe Datetimes for Python

2025-04-13

Whenever: Typed, DST-Safe Datetimes for Python

Tired of Python's `datetime` pitfalls? Whenever offers typed, DST-safe datetime operations with unmatched performance, outpacing other third-party libraries and often the standard library itself. Choose between a high-performance Rust implementation or a pure Python version for ease of use. It addresses the standard library's shortcomings in DST handling and type checking, providing a clean API for writing correct datetime code.

(github.com)

Development datetime

Bias-Free Dual H2 Production System: 4x Higher Efficiency Than DOE Target

2025-05-11

Bias-Free Dual H2 Production System: 4x Higher Efficiency Than DOE Target

Researchers have devised a novel bias-free dual hydrogen production system, replacing the energy-intensive oxygen evolution reaction with the cost-effective oxidation of furfural. The system consists of a highly efficient PtC/Ni/c-Si photocathode for water reduction and a copper anode for furfural oxidation, producing valuable furoic acid and hydrogen. This design cleverly harnesses the high photocurrent of the c-Si photocathode, eliminating the need for external bias and achieving a significantly higher hydrogen production rate than conventional water splitting. The solar hydrogen production rate is more than 8 times higher than previously reported bias-free PEC H2 production systems, far exceeding the US Department of Energy (DOE) target.

(www.nature.com)

Tech photoelectrochemistry hydrogen production

The Enduring Legacy of the 88x31 Pixel Button

2025-04-05

This article delves into the origins and enduring popularity of the ubiquitous 88x31 pixel button on the internet. Tracing its roots back to the mid-1990s, the article explores how Netscape's "Netscape Now" program utilized this button size, later leading to widespread adoption on platforms like Geocities. Despite its small size, its ease of creation, distribution, and customization made it a unique symbol of early web culture. Even in today's high-resolution screen era, the 88x31 pixel button persists, tied to nostalgia and a distinct aesthetic of the early internet. The article also explores alternative button sizes and offers perspectives on the future of the 88x31 pixel button.

(ultrasciencelabs.com)

Design

arXivLabs: Experimenting with Community Collaboration

2025-07-02

arXivLabs is a framework for collaborating on new arXiv features directly on the site. Individuals and organizations involved share arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those who uphold these values. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Floppotron 3.0: A 512-Floppy-Drive Orchestra Upgrade

2025-02-11

The Floppotron 3.0 is here! This massive hardware orchestra, featuring 512 floppy disk drives, 4 scanners, and 16 hard disk drives, has undergone a major upgrade. This enhanced version boasts increased scale and capabilities, incorporating custom electronic circuits and a completely rewritten firmware. The article details its operational principles, construction, and sound generation, explaining the intricacies of the floppy disk drive wall, scanners, and hard drives, and how MIDI controls them to produce music. It also addresses the significant power consumption and the power supply solution, along with plans for future instrument additions.

(silent.org.pl)

Hardware Creation

CARA Hexapod Robot: Control Algorithms and Gait

2025-07-24

CARA Hexapod Robot: Control Algorithms and Gait

This article details the control system of the CARA hexapod robot. It begins with a homing sequence for each joint, using current draw to detect physical limits. Trajectory planning leverages inverse, forward, and rotational kinematics equations for smooth movement. A trotting gait, combining swing and stance phases, is implemented, allowing for forward movement and turning by adjusting leg angles and phasing.

(www.aaedmusa.com)

Hardware gait planning

Outgoing NASA Administrator Defends Artemis Program Amidst Delays

2025-01-07

Outgoing NASA Administrator Defends Artemis Program Amidst Delays

Outgoing NASA Administrator Bill Nelson, in a recent interview, expressed confidence in the Artemis lunar program, addressing concerns about delays. He attributed recent setbacks to the Orion heat shield and stated that after extensive testing and review by independent panels, Artemis II is on track for a launch around April 2026. Artemis III's lunar landing, contingent on SpaceX's lander readiness, could follow in summer 2027. Nelson also discussed his views on commercial human spaceflight and the restructuring of the Mars Sample Return mission to make it more affordable and timely. Finally, he offered well wishes to the incoming Trump administration's nominee and predicted that Artemis won't be canceled, although he expects the new administration to review the program's architecture.

(arstechnica.com)

Tech

Trump Officials' Modified Signal App Leaked Plaintext Chat Logs

2025-05-06

Trump Officials' Modified Signal App Leaked Plaintext Chat Logs

A security researcher discovered that TeleMessage, the maker of a modified Signal app (TM SGNL) used by former Trump administration officials, has access to users' plaintext chat logs. The app archived messages on a public AWS cloud server, and vulnerabilities led to a hack exposing a trove of chat logs, including Signal, Telegram, and WhatsApp messages. TeleMessage, an Israeli company whose founder is a former IDF intelligence officer, raises concerns about potential sharing of data with Israeli intelligence. This incident highlights the risks of using modified messaging apps and the potential threat to national security.

(micahflee.com)

Tech

DeepFace: A Lightweight Face Recognition Library in Python

2025-01-06

DeepFace: A Lightweight Face Recognition Library in Python

DeepFace is a lightweight Python library for face recognition and facial attribute analysis (age, gender, emotion, and race). It's a hybrid framework incorporating state-of-the-art models like VGG-Face, FaceNet, and ArcFace, achieving high accuracy. The library provides a user-friendly interface, encompassing face detection, verification, recognition, and attribute analysis. Users can customize their pipeline by selecting from various detectors and models.

(github.com)

AI face recognition

Ambiguous Definition of 'Sun-like Star' Hinders Exoplanet Research

2025-04-09

This article discusses the ambiguous definition of 'sun-like star' in astronomy and its impact on exoplanet research. The author points out that the term 'sun-like star' has different meanings in different papers, sometimes referring to G-class stars, sometimes extending to FGK-class stars, or even encompassing all stars on the main sequence. This ambiguity leads to public misunderstanding of exoplanet research and may affect research funding. The author calls on astronomers to clearly define the concept of 'sun-like star' when communicating with the public to avoid misinterpretations.

(www.centauri-dreams.org)

Tech sun-like stars scientific definitions

The Surprising Secrets Hidden in the Entropy of a Mixture

2025-07-01

This article delves into the relationship between the entropy of a mixture of probability density functions and its interpolation factor. The author reveals that entropy, as a function of probabilities, is concave, and this concavity is directly tied to the mutual information between the two distributions. By introducing a Bernoulli variable and the concept of conditional entropy, the article elegantly explains how mutual information quantifies the change in the expected surprisal of a prediction given knowledge of the mixture factor. Furthermore, it introduces a novel concept, 'proclivity', connecting it to KL divergence and cross-entropy. The article also discusses Jensen-Shannon divergence and the Neyman χ² divergence appearing in higher-order Taylor expansions. Ultimately, it concludes that the entropy function of the mixture completely describes the distribution of likelihood ratios between the two probability distributions, offering a fresh perspective on understanding the relationship between probability distributions.

(cgad.ski)

AI KL Divergence

From Prison to Programming: A Redemption Story

2025-06-24

h5law shares his incredible journey from battling addiction, mental health struggles, and imprisonment to finding redemption through programming. While incarcerated, he discovered a passion for learning, teaching himself computer science, Bitcoin, and Solidity. Now free, he continues his studies in programming, philosophy, and theology, intending to document his learning and projects on this blog. This is an inspiring tale of self-redemption and unwavering pursuit of knowledge.

(h5law.com)

Misc programming journey

NotebookLM Now Offers Multilingual Audio Summaries

2025-04-30

NotebookLM Now Offers Multilingual Audio Summaries

NotebookLM has updated its audio summarization feature, allowing users to select their preferred output language. Whether you upload a Portuguese documentary, a Spanish research paper, or an English study report, the system can generate an audio summary in your chosen language, facilitating the creation of multilingual content or learning materials. For instance, a teacher can share resources about the Amazon rainforest in various languages, and students can upload these and generate audio summaries in their native language, breaking down language barriers and making information more accessible.

(blog.google)

Development audio summarization

The Little Book of Linear Algebra: A Concise Introduction

2025-09-03

The Little Book of Linear Algebra: A Concise Introduction

This concise introduction to linear algebra starts with scalars and vectors, building up to vector addition, scalar multiplication, dot product, norms, and angles. It then delves into matrices, linear systems of equations, linear transformations, eigenvalues, and eigenvectors, illustrating each concept with examples and exercises. The book emphasizes the geometric interpretation of linear algebra and shows its applications in computer graphics, data science, and machine learning.

(github.com)

Development

Litestar: An Underrated Python Web Framework

2025-08-07

Litestar is a lightweight, async-first Python web framework that scales exceptionally well even in large projects. Unlike popular frameworks like FastAPI, Litestar prioritizes code scalability, avoiding issues like circular imports and simplifying multi-file application development through its unique route decorator mechanism. Furthermore, its excellent integration with Pydantic, SQLAlchemy, and the Advanced Alchemy library significantly boosts developer productivity, especially when handling database interactions. Its automatic DTO and repository generation features are incredibly convenient. In short, Litestar is a noteworthy Python web framework, particularly well-suited for developers who value maintainable and scalable code.

(www.b-list.org)

Development

Anduril: How a 20-Person Startup Disrupted Defense Tech

2025-08-31

Anduril: How a 20-Person Startup Disrupted Defense Tech

This article recounts Anduril's explosive growth from a 20-person startup to a $28 billion company with 4,000 employees. The author, Anduril's former SVP of Engineering, details the company's rapid success through a combination of speed, first-principles thinking, ownership, simplicity, and deployment focus. Anduril's rapid iteration and bold experimentation led to disruptive defense products like the low-cost Anvil counter-drone system and the high-performance Bolt loitering munition, securing multi-billion dollar contracts. The article also highlights Anduril's unique culture, emphasizing technical excellence, product-centric thinking, and a highly efficient organizational structure that transformed ambitious ideas into deployable products.

(joincolossus.com)

Tech defense technology

HP's PCFax: Giving Used PCs a 'CarFax'

2025-07-01

HP's PCFax: Giving Used PCs a 'CarFax'

The world generates over 60 million tons of e-waste annually, much of it prematurely discarded functional computers. HP introduces PCFax, similar to a car's CarFax report, documenting a PC's complete usage and maintenance history, including hardware health, usage patterns, and more. This data, securely stored in the PC's firmware, enables predictive failure analysis. PCFax aims to boost used PC resale, reduce e-waste, and offer IT optimization. Features are slated for a 2026 launch, with plans to integrate AI for predictive maintenance.

(spectrum.ieee.org)

Tech

Scalable Quantum Computing Takes a Leap Forward with Integrated Photonics

2025-03-01

Scalable Quantum Computing Takes a Leap Forward with Integrated Photonics

Researchers at ETH Zurich have made a breakthrough in building scalable quantum computers. They overcame a major hurdle in trapped-ion quantum computing: instability in ion transport caused by the interaction between optical components and the ion trap. Using ingenious compensation methods, they achieved over 99% fidelity for single-qubit logic gates, paving the way for larger, more powerful quantum computers. This research represents a significant step towards practical quantum computing.

(physics.aps.org)

Tech integrated photonics ion trap

Sleeping Like a Sailor to Maximize Claude Pro Usage

2025-08-12

To maximize the five-hour usage limit of his Claude Pro subscription, the author adopted a sailor-like sleep schedule, taking 2-3 hour naps to maintain peak coding efficiency. This strategy has resulted in a 10x increase in productivity on his B2B SaaS project. While acknowledging the sacrifice in sleep quality, the author finds this approach highly effective and plans to continue using it even after potential Claude Pro usage restrictions tighten.

(mattwie.se)

Development sleep strategy

LispE: A Novel Lisp Dialect with Pattern Matching and Logic

2025-04-09

LispE: A Novel Lisp Dialect with Pattern Matching and Logic

LispE, a modern Lisp dialect developed by Naver, distinguishes itself from traditional Lisp implementations like Common Lisp, Scheme, and Clojure through innovative constructs: defpat, defmacro, and defpred. LispE extends Lisp's flexibility and macro system with advanced pattern matching, enhanced macro capabilities, and logic programming elements. defpat enables defining multiple functions under the same name, each triggered by a specific argument pattern; defmacro simplifies custom syntax creation using pattern matching and a $ operator; defpred integrates pattern matching with predicate-based evaluation and automatic backtracking, blending logic programming into the Lisp framework. Compared to other Lisps, LispE offers superior expressiveness and modularity.

(github.com)

Development

UK Tech Jobs Soar, but London's AI Dominance Highlights Regional Divide

2025-06-06

UK Tech Jobs Soar, but London's AI Dominance Highlights Regional Divide

Accenture research reveals a 21 percent surge in UK tech vacancies, reaching pre-pandemic highs. AI job postings nearly doubled year-over-year, with London accounting for 80 percent. While the UK saw a 53 percent increase in individuals reporting tech skills (1.69 million), a significant regional disparity exists. London-based companies plan to allocate 20 percent of their tech budgets to AI, compared to just 13 percent in regions like North East England, Scotland, and Wales. This highlights the UK's AI opportunity alongside a concerning digital divide, threatening long-term competitiveness unless regional talent and infrastructure gaps are addressed.

(www.theregister.com)

Tech AI talent regional development

GPT-5's Security Flaws Exposed: Jailbroken in Under 24 Hours

2025-08-09

GPT-5's Security Flaws Exposed: Jailbroken in Under 24 Hours

Two firms, NeuralTrust and SPLX, independently tested the newly released GPT-5, revealing significant security vulnerabilities. NeuralTrust successfully jailbroke GPT-5 using a 'storytelling' attack, guiding it to generate instructions for creating a Molotov cocktail. SPLX demonstrated that simple obfuscation attacks could elicit bomb-making instructions. The findings highlight GPT-5's inadequate security, rendering its raw model nearly unusable for enterprises even with OpenAI's internal prompt layer. Compared to GPT-4, GPT-5 shows a significant drop in security robustness, demanding extreme caution.

(www.securityweek.com)

AI

One-Handed iPhone Coding: Beyond Pythonista, a Trio of Apps Emerges

2025-08-14

The author's dream of single-handedly coding on an iPhone has become a reality. Abandoning Pythonista, they now use a combination of three apps: Secure Shellfish (with offline folder syncing), Textastic (code editor), and Working Copy (Git client), running code on a VPS. While this setup has a higher upfront cost (around €57 plus monthly VPS fees), it provides a distraction-free coding experience, offering an alternative to social media and enabling focused, one-handed development.

(clearsky.dev)

Development

Formal Specifications: Beyond Instructions, Defining Software Behaviors

2025-07-28

Formal Specifications: Beyond Instructions, Defining Software Behaviors

This post delves into the distinction between formal specifications and traditional programs. While programs are lists of instructions, formal specifications are sets of behaviors. Using a counter example, the author illustrates how specifications define all correct behaviors and leverage set theory, employing generators (Init and Next) to describe infinite sets of behaviors. This contrasts with the concept of nondeterminism in programming; in formal specifications, nondeterminism refers to multiple ways a behavior can be extended, while in programs, it refers to uncertain code paths. The article emphasizes understanding formal specifications as sets of behaviors, crucial for debugging and interpreting model checker errors.

(surfingcomplexity.blog)

Development formal specification behavioral modeling

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