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Category: Development

xlwings Lite: Revolutionizing Excel Automation with Python

2025-04-04

xlwings Lite is a free and easy-to-install Excel add-in that brings the power of Python to Excel automation and custom function creation in a privacy-first, secure, and developer-friendly way. No Python installation is required; it runs on Windows, macOS, and Excel for the web, supporting Microsoft 365 and recent perpetual versions like Office 2024. Create custom functions, run automation scripts, access the Excel object model, install third-party libraries (like pandas, Polars), and access web APIs. All code runs locally, delivering lightning-fast performance and complete privacy; users can even self-host to eliminate Microsoft telemetry.

(lite.xlwings.org)
Development

The Zen of Side Projects: A Programmer's Journey Back to Creation

2025-04-04
The Zen of Side Projects: A Programmer's Journey Back to Creation

A programmer, burnt out from excessive gaming, rediscovers the joy of coding through a neglected side project. Choosing SvelteKit, the author emphasizes the process of exploration and experimentation, finding a sense of freedom and creative fulfillment long forgotten. The article argues that the act of creation, rather than the outcome, is paramount; even failure becomes part of a successful journey of discovery. It encourages readers to embrace their own creative outlets, to value the process over perfection, and to find joy in the act of making.

(joshcollinsworth.com)
Development

The Definitive Guide to Tcl Programming, 2nd Edition Released

2025-04-04

The highly anticipated second edition of "The Tcl Programming Language" is finally here! Covering Tcl 9, this comprehensive guide explores the Tcl language from basic syntax to advanced features such as metaprogramming, object-oriented programming, asynchronous I/O, and concurrent programming. The 660-page book details Tcl's flexibility and power, with overwhelmingly positive reviews praising it as the best resource for learning and referencing Tcl.

(www.magicsplat.com)
Development programming guide

Dark Mode with Minimal CSS: A Surprisingly Easy Implementation

2025-04-04

Feep! website now boasts a sleek dark mode, achieved with surprisingly minimal CSS. The author details three approaches: leveraging the browser's built-in dark mode via a `` tag; employing the `color-scheme` property for CSS control; and using `prefers-color-scheme` media queries for separate light and dark mode styles. Tips include using the `light-dark()` and `color-mix()` functions for color optimization, and cleverly handling images and code blocks with CSS filters. The result? An elegant dark mode switch with only a handful of added CSS lines, streamlining the development process considerably.

(search.feep.dev)
Development browser native

Airbnb's Listing Lifetime Value Framework: A Deep Dive

2025-04-04
Airbnb's Listing Lifetime Value Framework: A Deep Dive

Airbnb developed a framework to estimate listing lifetime value (LTV) to enhance user experience. The framework calculates three types of LTV: baseline LTV, incremental LTV, and marketing-induced incremental LTV. Baseline LTV predicts the total bookings a listing will receive in the next 365 days using machine learning and listing data. Incremental LTV accounts for booking cannibalization between listings. Marketing-induced incremental LTV measures the additional value generated by internal marketing initiatives. The article discusses challenges like accurately measuring baseline LTV, handling incrementality, and dealing with uncertainties (e.g., the COVID-19 pandemic). Airbnb uses LTV to identify high-value listings, improve host recommendations, and evaluate marketing campaign effectiveness.

(medium.com)
Development Lifetime Value

BuzzBench: Seamless Performance Testing for Your Workflow

2025-04-04
BuzzBench: Seamless Performance Testing for Your Workflow

BuzzBench offers a complete performance testing solution that integrates directly into your workflow and development pipeline. Deploy lightweight agents anywhere with a single command to test production locally, verify staging environments in CI/CD, or monitor your entire infrastructure. It boasts flexible test configuration, detailed analytics (response times, throughput, success rates), and automatic, rapid reporting. Historical tracking allows comparison against previous tests, enabling proactive identification of performance issues and the establishment of baselines and alerts.

(buzzbench.io)
Development CI/CD integration

arXivLabs: Experimenting with Community Collaboration

2025-04-04
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved share arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who uphold them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)
Development

Avoiding Data Copies: Exploring Efficient Buffer Resizing in C++

2025-04-04
Avoiding Data Copies: Exploring Efficient Buffer Resizing in C++

Johnny's Software Lab explores methods to avoid costly data copying in C++. The article delves into how operating system calls like `mmap` (Linux) and `VirtualAlloc` (Windows) can enable dynamic buffer resizing, thus avoiding data copies. It compares the performance differences between various approaches, including using `mremap`, `xallocx` (jemalloc), and custom memory allocation strategies. Experiments demonstrate that avoiding copies significantly improves performance, but caution is advised regarding cross-platform differences and potential memory fragmentation issues.

(johnnysswlab.com)
Development

Python Conquers CUDA: NVIDIA's Native Python Support Ushers in a New Era of GPU Programming

2025-04-04
Python Conquers CUDA: NVIDIA's Native Python Support Ushers in a New Era of GPU Programming

In 2024, Python surpassed JavaScript to become the world's most popular programming language. At GTC, NVIDIA announced native Python support for its CUDA toolkit, revolutionizing GPU programming. Developers can now use Python directly for algorithmic computing on GPUs without needing C++ expertise. NVIDIA built Pythonic CUDA, not a simple translation of C, but a natural interface for Python developers. This includes components from runtime compilers to cuPyNumeric (a NumPy replacement), and introduces the CuTile programming model, simplifying GPU programming's complexity. This massively expands CUDA's developer base, especially promising in emerging markets like India and Brazil.

(thenewstack.io)
Development

Excel's MAP Function: Functional Mapping of Array Elements

2025-04-04

Excel's MAP function offers a powerful way to process arrays. It transforms each element in an array using a custom LAMBDA function and returns a new array. You can input multiple arrays, and the LAMBDA function will calculate the elements at corresponding positions. This makes batch data processing concise and efficient; simply define the calculation formula, and the MAP function automatically completes the mapping of all elements.

(support.apple.com)
Development MAP function LAMBDA function

Hidden JavaScript Quirks: Beyond the Memes

2025-04-04
Hidden JavaScript Quirks: Beyond the Memes

This article uncovers lesser-known quirks in JavaScript that go beyond typical programmer humor and tutorials. Examples include the peculiar scoping of the `eval` function; the counter-intuitive variable capture in `for` loops; the falsiness of `document.all`; Unicode pitfalls in string iteration; and the performance and strange behavior of sparse arrays. The author also touches upon the complexities of Automatic Semicolon Insertion (ASI) and potential errors it can cause, listing many other noteworthy oddities within JavaScript.

(stack-auth.com)
Development quirks

Setting Up Your Gumroad Development Environment

2025-04-04
Setting Up Your Gumroad Development Environment

This guide walks you through setting up a local development environment for Gumroad. You'll need Docker, Docker Compose, MySQL 8.0.x, imagemagick, libvips, ffmpeg, pdftk, and Bundler. Node.js and npm are also required. Configure Sidekiq Pro and environment variables as needed. Generate SSL certificates and start Docker services and the Rails server using `make local`. Remember to reset Elasticsearch indices and start the push notification service.

(github.com)
Development

Modules Begone: A New Programming Paradigm Based on a Global Function Database

2025-04-04

This article proposes a revolutionary programming paradigm: abandoning modules in favor of a global function database. All functions have unique names and rich metadata, stored in a searchable key-value database. This simplifies open-source contributions (contributing a single function is sufficient), eliminates the module partitioning problem, and facilitates function lookup and reuse. The author argues that this approach is more beneficial for the development and maintenance of large programs and proposes specific implementation ideas and extensions, such as function rating and peer review mechanisms.

(groups.google.com)
Development modularization

Heroku's .NET Support Goes GA: A Developer's Dream

2025-04-04
Heroku's .NET Support Goes GA: A Developer's Dream

Heroku has officially launched general availability (GA) support for .NET, ending its beta testing phase. This means .NET developers can now leverage Heroku's robust infrastructure and support services in production environments. Heroku automates the build and deployment of .NET applications, supporting languages like C#, F#, and Visual Basic, and seamlessly integrates with other Heroku features such as Pipelines, CI, and Review Apps for a streamlined development and deployment workflow. Whether you're new to .NET or a seasoned developer, Heroku offers a smooth deployment experience.

(blog.heroku.com)
Development Cloud Deployment

A Transputer Emulator in JavaScript: A 90s OS Reborn in Your Browser

2025-04-04
A Transputer Emulator in JavaScript: A 90s OS Reborn in Your Browser

A developer has ported their C-based Transputer emulator to JavaScript. Surprisingly fast, this emulator comes pre-loaded with a full-blown operating system from Spring 1996, including a C compiler, assembler, 3D modeler, and ray tracer. Users can experience this retro OS directly in their browser, running commands and even attempting to self-compile the C compiler! This showcases the advancements in JavaScript JIT compilation and the developer's passion for retro technology.

(nanochess.org)
Development Retro OS

Eight Years of Rust: A Multimedia Framework Retrospective

2025-04-04

This post reflects on eight years of using Rust to develop the NihAV multimedia framework. The author initially chose Rust to overcome the composability and portability issues of C. A comparison of Rust with other languages (C++, Java, Go, Nim, etc.) highlights Rust's strengths in composability, performance, low-level operations, and inline assembly. However, limitations are also noted, such as quirks in the macro and trait systems, and controversies surrounding the Rust Foundation. Ultimately, the author finds Rust a good choice, but emphasizes the need for developers to adapt their thinking to Rust's unique paradigms.

(codecs.multimedia.cx)
Development multimedia development

Local-First Web Dev: Reclaim Your Data

2025-04-04
Local-First Web Dev: Reclaim Your Data

Tired of backend-dependent web apps? Local-first web development is a revolutionary approach that puts users in control. Access your apps offline with automatic syncing when online. This guide explores the core principles, advantages over traditional cloud apps, and a step-by-step approach to building local-first apps using Vue.js, including transforming your SPA into a PWA, implementing robust storage solutions like SQLite, and developing secure syncing and authentication systems. Future posts will delve into advanced topics like conflict resolution.

(alexop.dev)
Development

Bash INI Parser: A Robust Shell Script Library

2025-04-04
Bash INI Parser: A Robust Shell Script Library

A powerful Bash shell script library, `lib_ini.sh`, provides a comprehensive set of functions for parsing and manipulating INI configuration files. It supports reading, writing, adding, updating, and removing sections and keys, handling complex values, arrays, and environment variables. The library also features robust error handling, a debug mode, and configurability. An interactive online demo allows for easy testing.

(github.com)
Development Configuration Files

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

Beyond Reproducible Builds: Towards Idempotent Rebuilds of Debian

2025-04-04

This article explores a new goal beyond reproducible builds for Debian packages: idempotent rebuilds. The author argues that simply reproducing published packages using older build dependencies (as done by the Reproduce.Debian.net project) is insufficient, as it relies on old binary packages that cannot be rebuilt from source. Therefore, the author proposes the concept of idempotent rebuilds, where iterative rebuilding eventually leads to a state where the rebuilt packages are identical to the previous iteration. This requires addressing issues like build timestamps and non-deterministic outputs. The author has completed stage 0 of the rebuild and plans to release the build artifacts for stage 1, with the ultimate goal of being able to bootstrap a Debian binary distribution from an environment like Guix. Challenges include the presence of non-free firmware and non-Debian signed binaries which might prevent self-rebuilding.

(blog.josefsson.org)
Development Reproducible Builds Idempotent Rebuilds

Simple Denoising Diffusion: A PyTorch Implementation

2025-04-03
Simple Denoising Diffusion: A PyTorch Implementation

This repository provides a streamlined PyTorch implementation of a denoising diffusion model. Building upon existing resources, the author refactored the code for improved readability and understanding. Functions and classes are logically separated into different files, making it easier to grasp the building blocks of diffusion models. Training and image generation are handled in separate files for easier parameter management. While the generated images aren't perfect, this project serves as a valuable learning resource for understanding diffusion models.

(github.com)
Development

Slipstream: A Data-Flow Model for Stateful Streaming Applications

2025-04-03

Slipstream simplifies the development of stateful streaming applications using a Python-based data-flow model. It supports diverse sources (Kafka, streaming APIs, etc.) and sinks (Kafka, RocksDB, APIs), allowing arbitrary stateful operations (joins, aggregations, filtering) with regular Python code. A simple timer example showcases its ease of use; creating a timed task requires just a few lines. Slipstream emphasizes simplicity, freedom, and speed, offering optimized defaults for quick setup and execution.

(slipstream.readthedocs.io)
Development data flow

OpenVMS Codebase: A 35-Year Journey of Explosive Growth

2025-04-03

A researcher meticulously analyzed the size of the OpenVMS (VMS) codebase over 35 years. By counting lines of code across 15 key components in various releases (V6.2, V7.2, V8.2, V9.2-3), the study revealed a nearly threefold increase in code size, from hundreds of thousands of lines to almost two million. The shift in programming languages from BLISS and MACRO-32 to C was also highlighted. This research offers valuable insights into the architecture and evolution of large-scale operating systems.

(vmssoftware.com)
Development Codebase Size OS Evolution

Senior Devs: Mastering AI-Powered Coding Tools

2025-04-03
Senior Devs: Mastering AI-Powered Coding Tools

This article details the author's positive experiences using AI coding tools in both personal and professional projects. The author finds that experienced developers are uniquely positioned to leverage these tools effectively, viewing the AI as a highly knowledgeable junior developer requiring guidance. Three key success factors are highlighted: well-structured requirements, robust quality assurance tools, and pre-defined code file structures. Two project examples (greenfield and brownfield) demonstrate significant productivity gains, even for developers unfamiliar with the tech stack. The article concludes that success hinges on leveraging traditional software engineering best practices alongside this new technology.

(manuel.kiessling.net)
Development

arXivLabs: Experimental Projects with Community Collaborators

2025-04-03
arXivLabs: Experimental Projects with Community Collaborators

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on our website. Individuals and organizations partnering with arXivLabs embrace our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who adhere to them. Have an idea for a project that will benefit arXiv's community? Learn more about arXivLabs.

(arxiv.org)
Development

Topological Sort Algorithm Variant: Efficiently Handling Dependencies

2025-04-03
Topological Sort Algorithm Variant: Efficiently Handling Dependencies

This article presents an improved topological sorting algorithm based on Kahn's algorithm, but it treats nodes as sets instead of individual nodes. The algorithm iteratively finds the root sets of the graph, removes them, and repeats until the graph is empty. The order of the removed root sets forms a topological order, and nodes within the same root set are independent and can be processed in parallel. The algorithm can also detect cycles and return a partial topological ordering instead of completely aborting.

(github.com)
Development topological sort graph algorithm

Hatchet: A Robust Background Task Platform Built on Postgres

2025-04-03
Hatchet: A Robust Background Task Platform Built on Postgres

Hatchet simplifies background task management by leveraging Postgres. Forget complex queues and pub/sub systems; Hatchet lets you distribute functions across workers with minimal configuration. It boasts features like complex workflow chaining (DAGs), failure alerting, durable tasks, and a real-time web dashboard. Robust flow control, including concurrency and rate limiting, ensures application stability. Hatchet supports Python, Typescript, and Go, and offers cloud and self-hosted options.

(github.com)
Development background tasks

WebKit's Declarative Web Push: More Efficient, More Private

2025-04-03
WebKit's Declarative Web Push: More Efficient, More Private

WebKit introduces Declarative Web Push to address power consumption and privacy concerns with traditional Web Push. Traditional Web Push relies on Service Workers, making it vulnerable to Intelligent Tracking Prevention (ITP) and prone to subscription revocation due to processing failures. Declarative Web Push allows for sending and displaying notifications without a Service Worker, embedding notification content directly in the push message. This enhances efficiency and privacy while maintaining backward compatibility with existing Web Push.

(webkit.org)
Development

Supabase Launches Declarative Schemas for Easier Database Management

2025-04-03
Supabase Launches Declarative Schemas for Easier Database Management

Supabase has released declarative schemas, a streamlined approach to managing and maintaining complex database schemas. By defining database structure in version-controlled .sql files, developers gain centralized management, reducing redundancy and errors. This is particularly beneficial for complex databases, like Supabase's own projects table with RLS policies and trigger functions, dramatically improving development speed—reducing schema updates from hours to minutes. This simplifies code reviews and makes parallel development significantly easier.

(supabase.com)
Development declarative schema

GitMCP: Empowering AI to Deeply Understand GitHub Code

2025-04-03
GitMCP: Empowering AI to Deeply Understand GitHub Code

GitMCP creates a dedicated Model Context Protocol (MCP) server for any GitHub project, allowing AI assistants to understand your code within its context. It reads files like README.md and code comments, providing AI assistants with more accurate and relevant information. Setup is straightforward; simply point to your GitHub repository and connect your AI tools. GitMCP works seamlessly with any public GitHub repository and GitHub Pages, making your documentation and code easily accessible to AI tools.

(gitmcp.io)
Development Code Understanding
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