Hacker News·46wOdyc.js
Odyc.js is a lightweight JavaScript library designed to help users create interactive narrative games without requiring extensive programming knowledge. The library aims to make game development accessible to beginners while leveraging JavaScript's capabilities for creating engaging interactive experiences.
Hacker News·43wI Deleted My Second Brain
A personal reflection on deleting 10,000 notes and 7 years of accumulated knowledge from personal knowledge management systems like Obsidian. The author argues that PKM tools can become digital hoarding systems that replace actual thinking with filing, leading to cognitive overload rather than clarity. After achieving sobriety, they realized their extensive note-taking archive had become a burden rather than a tool, prompting them to delete everything and adopt a minimalist approach focused on living knowledge rather than storing it.
Hacker News·47wkanbn/kan: The open source Trello alternative.
Kan is an open-source project management tool that serves as a Trello alternative, featuring board visibility controls, workspace collaboration, Trello import functionality, labels and filters, comments, and activity logging. Built with Next.js, tRPC, Better Auth, Tailwind CSS, Drizzle ORM, and React Email, it offers local development setup and welcomes community contributions under the AGPLv3 license.
Hacker News·44wmicrosoft/edit: We all edit.
Microsoft has released Edit, a simple terminal-based text editor written in Rust that pays homage to the classic MS-DOS Editor while incorporating modern interface elements similar to VS Code. The editor aims to be accessible to users unfamiliar with terminals and can be installed via WinGet on Windows or built from source using Rust's nightly toolchain. The project includes detailed build instructions and configuration options for package maintainers, particularly regarding ICU library dependencies for search and replace functionality.
Hacker News·46wEU OS
EU OS is a proof-of-concept Linux operating system based on Fedora with KDE Plasma desktop, designed for public sector organizations. It uses bootable container technology and aims to provide a common base OS with layered customizations for different organizational needs. The project partners with French government initiatives and campaigns promoting Linux adoption over Windows.
Hacker News·45wArt of Problem Solving
A comprehensive collection of visual mathematical proofs demonstrating various theorems and identities through geometric diagrams and illustrations. Covers summations (including odd numbers, triangular numbers, and Fibonacci sequences), geometric series, fundamental geometry theorems like the Pythagorean theorem, and advanced concepts like Fermat's Little Theorem. Each proof uses visual arrangements and geometric transformations to make abstract mathematical concepts more intuitive and accessible.
Hacker News·43wThe New Skill in AI is Not Prompting, It's Context Engineering
Context Engineering emerges as a more comprehensive approach than prompt engineering for building effective AI agents. Rather than focusing solely on crafting perfect prompts, it involves designing dynamic systems that provide LLMs with the right information, tools, and format at the right time. The concept encompasses system prompts, user inputs, conversation history, long-term memory, retrieved information (RAG), available tools, and structured outputs. The key difference between basic and sophisticated AI agents lies not in code complexity but in context quality - successful agents gather comprehensive contextual information before generating responses, while failures often stem from inadequate context rather than model limitations.
Hacker News·46wBuilding an AI Server on a Budget ($1.3K)
A comprehensive guide to building a custom AI server for $1,300, covering hardware selection (RTX 4070 GPU, motherboard, CPU, RAM), assembly process, Ubuntu Server installation, and software setup including NVIDIA drivers and CUDA toolkit. The build prioritizes cost-effectiveness for AI workloads while maintaining upgrade flexibility for future expansion.
Hacker News·45wA receipt printer cured my procrastination [ADHD]
A developer with ADHD discovered how to overcome procrastination by applying video game design principles to task management. The key insight involves creating frequent feedback loops by breaking tasks into micro-steps, using physical sticky notes for tangible progress tracking, and eventually upgrading to a thermal receipt printer for automated task printing. The system mimics addictive game mechanics through immediate feedback, easy starting points, and visual progress indicators, resulting in dramatically improved productivity and consistency.
Hacker News·44wuseautumn/autumn: Autumn is an open-source pricing & billing platform
Autumn is an open-source billing platform that acts as a layer between Stripe and applications, enabling developers to implement complex pricing models like subscriptions, credit systems, usage-based billing, and custom plans without handling webhooks or payment state management. It provides a simple API with three core functions (attach, check, track) and can be deployed via cloud service or self-hosted using Docker.
Hacker News·45wThe Tech Job Meltdown
The massive tech layoffs since 2023 aren't primarily due to AI, overhiring, or economic downturns, but rather a tax policy change. Section 174 of the Tax Cuts and Jobs Act eliminated the ability to immediately deduct R&D expenses, forcing companies to amortize them over 5-15 years instead. This created immediate cash flow problems and higher tax bills for tech companies, leading to over 500,000 layoffs. The policy was designed to offset corporate tax cuts in 2017 but has driven companies to move R&D operations overseas and cut US-based engineering jobs. The change particularly hurt startups and growth companies that relied on R&D write-offs to manage their tax burden while investing in innovation.
Hacker News·45wCI/CD Observability with OpenTelemetry - A Step by Step Guide
OpenTelemetry can provide comprehensive observability for CI/CD pipelines by capturing traces and metrics from GitHub Actions workflows. The setup involves configuring the OpenTelemetry Collector with a GitHub receiver that ingests webhook events as traces and scrapes repository metrics via GitHub APIs. This approach enables end-to-end visibility, performance optimization, error detection, and dependency analysis for CI/CD pipelines, replacing traditional ad-hoc monitoring methods with a unified observability framework.
Hacker News·47wWhy I Switched to UTC and Never Looked Back
A programmer shares his five-year experience of switching all devices to UTC instead of local time zones. The approach eliminates mental conversion overhead, provides consistency during travel, and simplifies scheduling for remote workers. While there are minor downsides like explaining the setup to others and converting 12-hour local times, the author found it significantly improved productivity and time management across global schedules.
Hacker News·44wPython can run Mojo now
Mojo can now be called from Python code, offering significant performance improvements for computationally intensive functions. The setup involves installing the modular package and creating .mojo files that export functions to Python. Benchmarks show Mojo delivering substantial speedups compared to pure Python and even NumPy implementations, though the technology is still in early development with some limitations like integer overflow issues.
Hacker News·47wRoot Shell on Credit Card Terminal
A security researcher reverse engineered a Worldline Yomani XR payment terminal and discovered an exposed root shell accessible via serial console without authentication. Despite sophisticated tamper detection mechanisms using pressure-sensitive connectors and copper traces, the debug interface remained accessible through an external hatch. The researcher extracted unencrypted firmware using chip-off techniques, revealing an outdated Linux system (kernel 3.6 from 2023). However, the security impact is limited because the Linux system only handles networking and updates, while sensitive payment operations run on a separate, encrypted secure processor.
Hacker News·46wFine-Tuning LLMs is a Huge Waste of Time
Fine-tuning advanced LLMs for knowledge injection is counterproductive because it overwrites existing valuable information stored in densely interconnected neurons. Instead of adding knowledge, fine-tuning risks destroying the carefully built ecosystem of an already trained model. Better alternatives include retrieval-augmented generation (RAG), adapter modules like LoRA, and contextual prompting, which inject new information without damaging the underlying model's knowledge base. These modular approaches preserve the integrity of pre-trained networks while achieving the desired knowledge enhancement goals.
Hacker News·44wBeating Brainrot by Button
A developer creates a smart home solution to combat social media addiction by using a Zigbee button that temporarily disables network-wide ad blocking for 15 minutes, followed by a one-hour cooldown period. The system integrates Adguard Home on a gli.net router with Home Assistant automation, allowing controlled access to distracting websites while maintaining digital wellness boundaries.
Hacker News·46wAir Lab Simulator
A web-based simulator that replicates Air Lab firmware functionality, allowing users to interact with virtual environmental sensors through different simulated environments. The simulator includes device controls, USB connectivity simulation, and menu navigation features, providing a hands-on experience without requiring physical hardware.
Hacker News·46wmanaskamal/XenevaOS: The Xeneva Operating System
XenevaOS is a custom operating system built from scratch supporting both x86_64 and ARM64 architectures. It features the Aurora hybrid kernel, a compositing window manager called Deodhai, graphics library Chitralekha, and includes networking, audio, USB3, and storage support. The OS comes with built-in applications like a file browser, calculator, terminal, and audio player, and welcomes open-source contributions from developers interested in low-level system development.
Hacker News·45wWorking on databases from prison: How I got here, part 2.
A software engineer shares his remarkable journey from incarceration to joining Turso as a database developer. After enrolling in a prison college program that provided computer access, he rediscovered programming and began contributing to open source projects. Through Maine's remote work program for inmates, he first worked at Unlocked Labs before becoming a major contributor to Turso's Project Limbo, a SQLite rewrite. His dedication to learning database internals and consistent contributions eventually led to a full-time position at Turso, demonstrating how determination and skill development can create unexpected career opportunities even in challenging circumstances.
Hacker News·46wClaude's System Prompt Changes Reveal Anthropic's Priorities
Analysis of Claude 4.0's system prompt reveals how Anthropic uses natural language instructions to program chatbot behavior. Key changes include removal of old hotfixes (now handled in training), encouragement of search functionality, expanded artifact use cases, context optimization for coding, and new cybersecurity guardrails. The 23,000-token system prompt consumes 11% of Claude's context window and demonstrates a user-driven development cycle where observed behaviors are first addressed through prompt modifications, then incorporated into model training.
Hacker News·44whow i use my terminal
A developer shares their highly customized terminal setup that replicates VSCode features using tmux, nvim, and custom scripts. The workflow includes SSH connections, tmux session management, file searching through scrollback history, and seamless file opening across remote servers. Key features include regex-based filename detection, automated pane management, and editor integration that works without local file copies. While powerful and efficient, the author acknowledges the setup requires significant customization and may not be suitable for most users.
Hacker News·45wMaking eyesite
A developer created Eyesite, a web application that enables eye-controlled navigation as an affordable alternative to Apple Vision Pro. The project uses WebGazer.js for eye tracking, requiring calibration through 9-point mapping for accuracy. Key design decisions included hiding the eye cursor to maintain immersion, implementing visual feedback through button glows when gazed upon, and using large UI elements to compensate for tracking jitteriness. The spacebar serves as the click mechanism, mimicking Vision Pro's look-and-pinch interaction model.
Hacker News·46w10 years of betting on Rust
A founder reflects on 10 years of using Rust in production, from the painful early days of version compatibility issues and compile time problems to today's mature ecosystem. Despite initial challenges with the borrow checker and tooling, Rust has evolved into a reliable choice for systems programming with exceptional community support, predictable builds, and excellent developer experience. The author discusses future improvements including faster compilation, better portability, ubiquitous const evaluation, simpler concurrency models, and expansion into new domains like web development and machine learning.
Hacker News·46wrommapp/romm: A beautiful, powerful, self-hosted rom manager and player.
RomM is a self-hosted ROM manager that allows users to scan, organize, and play their game collections through a web interface. It supports metadata enrichment from multiple sources like IGDB and Screenscraper, covers 400+ gaming platforms, and enables browser-based gameplay using EmulatorJS. The tool offers features like achievement tracking, multi-user access, mobile responsiveness, and integration with various gaming platforms and frontends.