Published: 2025-09-24 | Origin: Hacker News

Y Combinator (YC) offers an Early Decision program for students who wish to complete their education before participating in a startup accelerator. This allows students to apply while still in school, reserve a spot for a future batch, and receive funding immediately upon acceptance. Founders Sneha and Anushka of Spur (S24) used this option, securing $4.5 million for their AI-powered testing tools after applying in Fall 2023 and planning to graduate in May 2024. The

Published: 2025-09-24 | Origin: Hacker News

Helium is a privacy-focused web browser currently in beta, available only on desktop. It emphasizes user privacy by blocking ads, trackers, third-party cookies, and phishing sites by default, utilizing preinstalled uBlock Origin. Helium does not track users or make unsolicited web requests upon launch, ensuring full user consent in all actions. The browser is open-source, free of adware and bloat, and operates on a Chromium base for performance and energy efficiency. Key features include split view for multitasking

Published: 2025-09-24 | Origin: /r/programming

The provided content discusses the relationship between mathematics and programming, specifically focusing on type theory and equality. It explains how mathematical structures like natural numbers can be represented in programming languages like Haskell, but highlights the challenge of encoding laws that govern these structures due to different types of equality: definitional equality and propositional equality. Definitional equality is straightforward and part of the definition, while propositional equality requires formal proof, which can be more complex. In traditional mathematics, equality is treated as a binary

Published: 2025-09-24 | Origin: /r/ruby

The provided content appears to be a section of binary data, likely from an image file, possibly encoded in PNG format. It includes various headers and data segments that form part of the PNG structure, including the Image Header (IHDR) and Image Data (IDAT). The content doesn't convey a narrative or structured information but rather represents technical data necessary for image rendering. Without additional context or a clearer definition of what specific aspects to focus on, it is difficult to provide a meaningful summary beyond this technical interpretation

Published: 2025-09-24 | Origin: Hacker News

The content discusses a Linux-based tool designed to connect to a Sony A6700 camera using Wi-Fi or Ethernet. It utilizes Sony's Camera Remote SDK to automatically download new photos and optionally execute scripts on each downloaded file. The tool requires Linux, g++, and the SDK itself, with user documentation available in INSTALL.md. There are instructions for connection and error handling, including retry mechanisms. Overall, it emphasizes the importance of user feedback in its development.

Published: 2025-09-24 | Origin: Hacker News

Elephantshark is an open-source Ruby script developed by Neon that facilitates monitoring, understanding, and troubleshooting Postgres network traffic. It acts as a middleman in the Postgres-protocol exchanges, logging and parsing messages between Postgres servers, clients, drivers, and poolers. Unlike Wireshark, which can struggle with SSL/TLS-encrypted connections, Elephantshark can decrypt and re-encrypt these connections while logging the data. It also offers compatibility for Wireshark by providing SSL

Published: 2025-09-24 | Origin: /r/programming

On September 24th, the crates.io team was alerted by Kirill Boychenko from the Socket Threat Research Team about two malicious crates that were searching for Ethereum and Solana private keys, as well as arbitrary byte arrays for exfiltration. These crates executed harmful code at runtime, while imitating legitimate crates via typosquatting, copying their source code and documentation. The malicious crates were promptly disabled and deleted from crates.io, with logs retained for further investigation. They functioned similarly to

Published: 2025-09-24 | Origin: /r/ruby

The post discusses JDK 25, the latest Long-Term Support (LTS) release, and highlights its new AOTCache (ahead-of-time cache) feature, which optimizes code for future executions and could significantly enhance JRuby's performance. The author emphasizes that the primary challenge in migrating to JRuby has been its slow startup time, a problem that hasn't been fully addressed despite ongoing improvements. While JRuby has made strides in optimizing memory allocation and deferring initialization, its startup times remain significantly

Published: 2025-09-24 | Origin: /r/programming

The article explores the idea of using PostgreSQL for caching instead of Redis by implementing a simple HTTP server that interacts with both databases. The author sets up an experiment on a Kubernetes cluster to compare performance, using unlogged tables in PostgreSQL and standard Redis settings. Both databases are seeded with 30 million entries. The testing involves benchmarking operations (gets and sets) for metrics like operations per second, latencies, memory, and CPU usage. The benchmarks simulate real scenarios with different probabilities for hits and misses

Published: 2025-09-24 | Origin: /r/programming

"Introduction to Programming Languages," authored by Jaemin Hong and Sukyoung Ryu, serves as a textbook for the KAIST Programming Languages course but is intended for anyone interested in learning or teaching the fundamentals of programming languages, including syntax, semantics, and type systems. Faculty are encouraged to share the book with their students and to acknowledge the authors. Feedback and corrections are welcome via email. The book draws on materials from PLT and reflects insights gained from student interactions and contributions from teaching assistants. The authors

Published: 2025-09-24 | Origin: /r/programming

The upcoming Python 3.14 release, now with a release candidate available, features significant improvements, particularly in the free-threaded version that allows Python to run without the Global Interpreter Lock (GIL). Neil Schemenauer from Quansight implemented optimizations to the garbage collector (GC) for this release, enhancing performance. Unlike the default GC in the standard CPython build, which utilizes a per-interpreter linked list structure for managing garbage collection, the new free-threaded GC eliminates this

Published: 2025-09-24 | Origin: Hacker News

On September 24, 2025, Wasmer announced the beta launch of full Python support for Wasmer Edge, responding to the growing demand for running Python applications on WebAssembly in edge environments. Integrating Python with WebAssembly presents challenges due to the support required for native modules like numpy and pandas. While other projects like pyodide have made progress in this area, they don't meet server-side requirements adequately. The newly released Python feature in Wasmer Edge is notably faster than previous iterations, boasting

Published: 2025-09-24 | Origin: /r/programming

This content discusses the challenges of managing memory usage when working with large datasets, specifically in the context of implementing an efficient vector-like data structure in Rust to store large arrays of integers. The goal is to achieve O(1) random access while minimizing memory consumption. The author highlights how using Rust's standard `Vec<T>`, which provides O(1) access based on the static size of the data type (like u64 or i32), can lead to significant memory waste if the dynamic range of

Published: 2025-09-24 | Origin: Hacker News

Dayflow is a lightweight native macOS app that records your screen at 1 frame per second, analyzing it every 15 minutes with AI to generate a timeline of your daily activities. Designed with privacy in mind, users can choose their AI provider (either Gemini with their API key or local models) to ensure data control. Dayflow was created to reflect actual time spent on activities, as the developer felt traditional calendars were inadequate. The app is open-source and MIT licensed to ensure transparency. Features include

Published: 2025-09-24 | Origin: /r/ruby

The author recently returned from the Euruko conference in Portugal, which they extended by exploring Porto. They enjoyed the city's vibrant culture, food, and music, while reflecting on the wonderful connections made at the conference. They expressed gratitude to the organizers, particularly Henrique, for their efforts in creating a welcoming environment, highlighted by thoughtful details and excellent food. The conference exceeded their expectations in size and production quality, with around 600 attendees, many of whom they were excited to meet in person. The author appreciated

Published: 2025-09-24 | Origin: /r/programming

ByteByteGo is currently offering a 50% discount on their lifetime plan to help with structured preparation for system design interviews. Consistent hashing is highlighted as a key technique for distributed systems, allowing seamless scaling while preserving high availability and performance. This method smartly distributes data across nodes, reducing the need for rebalancing when servers are added or removed, making it vital for large-scale systems like caches, databases, and load balancers. The article introduces consistent hashing as a necessary concept for designing distributed

Published: 2025-09-24 | Origin: /r/programming

Sonatype offers a range of products focused on automating open source and AI governance. Key products include: 1. **Sonatype Nexus Repository** - A centralized binary repository for efficient building. 2. **Sonatype Repository Firewall** - Protects against OSS malware to reduce remediation efforts. 3. **Sonatype Lifecycle** - Automates Software Composition Analysis (SCA) and remediation to prevent rework. 4. **Sonatype SBOM Manager** - Automates compliance and reporting for software. 5

Published: 2025-09-24 | Origin: Hacker News

Doctors have successfully treated Huntington's disease for the first time, reporting a 75% slowdown in its progression in patients. This hereditary condition, which affects brain cells and resembles dementia, Parkinson’s, and motor neurone disease, typically emerges in a person's 30s or 40s and can be fatal within two decades. The new treatment, a form of gene therapy, is administered during 12 to 18 hours of delicate brain surgery and has the potential to extend the quality of life for patients

Published: 2025-09-24 | Origin: Hacker News

Python has recently become the most popular programming language on GitHub, surpassing JavaScript, as highlighted in the latest GitHub Octoverse report. Its rise is largely due to its application in AI, data science, and scientific computing, where rapid experimentation is vital. However, as the Python community expands and projects evolve from experiments to production, the language's inherent flexibility can pose challenges. To address this, the article discusses "typed Python," which enhances the reliability and quality of code. Python is

Published: 2025-09-24 | Origin: /r/programming

The content appears to be a brief mention of a software or application called OSHub, specifically designed for kernel developers, with a version number of 0.8.0 and a note indicating that there are no comments yet. The copyright is stated for the year 2025.