Developer Daily News - 2026-05-24 | DevRef

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Open SourceOS

Microsoft Open-Sources Earliest DOS Code

Microsoft has released the earliest known source code for MS-DOS, providing a fascinating historical look at the origins of personal computing systems.

Microsoft open-sources "the earliest DOS source code discovered to date"

DevOpsPerformance

Jane Street Releases High-Res magic-trace

A powerful tool from Jane Street that uses Intel Processor Trace to collect and visualize high-resolution data on what a process is doing.

janestreet/magic-trace

AIVisualization

Turn Code into Interactive Knowledge Graphs

An innovative tool that visualizes codebases as interactive graphs, allowing developers to explore, search, and query complex logic using AI.

Lum1104/Understand-Anything

AIAnthropic

Official Anthropic Claude Code Plugins

Anthropic's managed directory of high-quality plugins designed to extend Claude Code's capabilities for various development tasks and integrations.

anthropics/claude-plugins-official

C#.NET

C# Finally Introduces Native Union Types

A major language update for C# bringing union types to .NET 11, improving type safety and pattern matching for modern application development.

.NET (OK, C#) finally gets union types

AIPython

Master AI Engineering from Scratch

A comprehensive guide and repository for learning how to build, ship, and scale AI-driven applications with a focus on core engineering principles.

rohitg00/ai-engineering-from-scratch

AlgorithmsPerformance

Fast Integer to String Conversion in 2ns

A deep dive into an extremely optimized algorithm that converts integers to decimal strings in under two nanoseconds, pushing modern CPU limits.

Converting an Integer to a Decimal String in Under Two Nanoseconds

AITypeScript

Multica: Open-Source Coding Agent Platform

A managed platform that turns individual AI agents into a cohesive team, allowing for task assignment, progress tracking, and skill compounding.

multica-ai/multica

SecurityAI

AI Cybersecurity Skills Mapped to MITRE

Over 750 structured cybersecurity skills for AI agents, mapped to major security frameworks like MITRE ATT&CK and NIST CSF for robust AI security.

mukul975/Anthropic-Cybersecurity-Skills

ToolingReference

The Ultimate Developer Cheatsheet Collection

A massive curated list of manuals, one-liners, and tools for developers, covering everything from Linux internals to modern web development hacks.

trimstray/the-book-of-secret-knowledge

Developer Daily

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