January 14, 2026

14 articles from this day

Exa-d: How to store the web in S3

Exa-d is a data processing framework designed to efficiently manage and update vast web data stored in S3. It utilizes a declarative dependency graph for dynamic updates, enabling precise modifications and parallel execution, which optimizes performance for large-scale data processing tasks.

Hacker News Dev Tooling & DX startup

A 40-Line Fix Eliminated a 400x Performance Gap

A recent optimization in OpenJDK significantly reduced the performance gap of ThreadMXBean.getCurrentThreadUserTime() from up to 400x slower to a mere 40x improvement by replacing complex file I/O with a direct clock_gettime() call. This change enhances efficiency in multi-threaded environments by minimizing syscall overhead.

Hacker News AI-Assisted Coding startup

Databricks Genie Powers Conversational Insights in Atlassian Rovo

Atlassian's integration of Databricks Query Runner with AI/BI Genie enables users to access real-time insights through natural language queries within Rovo. This democratizes data access across teams, enhancing decision-making efficiency and eliminating knowledge silos.

Databricks Blog Dev Tooling & DX platform product

📜 AWS 134: CLI Command Center - Deploying Lambda via Zipped Packages

Deploying AWS Lambda functions via the CLI enhances automation and efficiency in cloud operations. This tutorial details the process of creating a Python script, packaging it into a zip file, and deploying it using AWS CLI commands, emphasizing key concepts like IAM roles and deployment packages.

Dev.to Dev Tooling & DX lambda awscli automation

Show HN: Cachekit – High performance caching policies library in Rust

CacheKit is a high-performance caching policies library for Rust, offering optimized implementations like FIFO and LRU, along with tiered caching primitives. It supports in-memory and composite strategies, integrates with metrics collectors, and is designed for performance-critical applications.

Hacker News Open Source Drops startup

The Ultimate Resource on C Language Functions

Comprehensive insights into C language functions cover essential topics such as function declaration, prototypes, call by value, and call by reference. The article enhances understanding of modular programming and code reusability, making it a valuable resource for both beginners and experienced developers.

Dev.to AI-Assisted Coding c ai-assisted-coding software

🎨 Writing Your Own Algorithm: A Fresher's Design Guide ( Final Part )

Algorithm design requires recognizing patterns and applying creative problem-solving techniques. This guide outlines essential design patterns, provides practical problem-solving frameworks, and encourages iterative refinement, making it a valuable resource for developing effective algorithms.

Dev.to AI-Assisted Coding algorithms beginners design

🎨 Writing Your Own Algorithm: A Fresher's Design Guide ( Part 2 )

Designing algorithms requires understanding constraints and optimizing solutions. This guide details a two-pass algorithm for calculating the product of an array except itself, achieving O(n) time complexity without division, and introduces a sweep line algorithm for determining the minimum number of meeting rooms needed.

Dev.to AI-Assisted Coding algorithms interview tutorial

Writing Your Own Algorithm - A Fresher's Design Guide

Designing algorithms requires a blend of creativity and technical skill, illustrated through a structured 5-step framework. The article provides practical examples, such as finding the first unique character in a string and merging overlapping intervals, emphasizing optimization and complexity analysis.

Dev.to AI-Assisted Coding algorithms beginners computerscience

ReactJS Hook Pattern ~Latest Ref Pattern~

The latest ref pattern in ReactJS allows developers to access the most recent values in useEffect without adding them to the dependency array. By utilizing useRef and a separate useEffect, this pattern ensures that the latest function reference is always available, enhancing component performance and reliability.

Dev.to AI-Assisted Coding ai-assisted-coding javascript react

Refactor the Terraform Script — Restoring Balance

Refactoring Terraform scripts using the tflocal wrapper simplifies development with LocalStack by eliminating unnecessary configurations. This approach maintains cleaner code that closely resembles real AWS usage, enhancing maintainability and clarity in infrastructure as code practices.

Dev.to Dev Tooling & DX localstack terraform

Self-Hosted Nextcloud on a Ubuntu Server 24.04 VM

Deploying Nextcloud on an Ubuntu 24.04 server VM using Docker and Docker Compose provides practical insights into managing multi-container applications. Key lessons include the importance of data persistence, the nuances of HTTPS configurations, and the value of understanding service dependencies in a real-world server environment.

Dev.to Dev Tooling & DX linux ubuntu tooling

SQL Aggregations Finally Made Sense: GROUP BY, HAVING, MIN, MAX, AVG

Understanding SQL aggregations requires a shift from thinking in rows to thinking in groups. Key concepts like GROUP BY, HAVING, and aggregate functions (MIN, MAX, AVG) are clarified through practical examples, highlighting the importance of query execution order and the distinction between WHERE and HAVING clauses.

Dev.to AI-Assisted Coding database postgres beginners

Ukraine's army targeted in new charity-themed malware campaign

Recent attacks targeting Ukraine's Defense Forces utilized charity-themed malware, PluggyApe, which exploits social engineering tactics to deliver backdoor access. The malware employs advanced obfuscation techniques and dynamic command-and-control communication, posing significant risks to mobile devices and organizations.

Bleeping Computer Dev Tooling & DX dev-tooling-dx