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The Developer Who Put an OS on the Amiga — Tim King (1947–2026)

A Cambridge Student Writes an Operating System In the late 1970s, a Cambridge computer science student named Tim King needed an operating system for the Cambridge LISP machine.

• Tim King, born in 1947, created Tripos, a preemptive multitasking OS in BCPL.
• King joined MetaComCo in 1984, bringing Tripos to Commodore for Amiga development.
• King founded Perihelion and UK Online, shaping modern computing concepts.

11m ago ·dev.to

I Built a Visa Photo Tool After Realizing How Complicated “Just a Passport Photo” Can Be

A few weeks ago, I was working on a small side project and noticed something surprisingly annoying. Visa and passport photo requirements are not as simple as: “Upload a passport photo.” Different…

• Visa and passport photo requirements vary by country.
• Author built VisaReadyNow to simplify photo checks.
• Tool focuses on explaining photo requirement failures.

12m ago ·dev.to

TypeScript Intersection Types Done Right: When They Compose Cleanly and When They Silently Lie

TypeScript Intersection Types Done Right: When They Compose Cleanly and When They Silently Lie This article was written with the assistance of AI, under human supervision and review.

14m ago ·dev.to

How I Reduced Website Latency by Optimizing the Right Things

I recently spent some time optimizing one of my websites, and honestly, the biggest improvements didn’t come from some fancy optimization trick. It came from measuring everything first.

20m ago ·dev.to

I Built a Malaysian Cultural RPG in a Single HTML File — Here's What Broke

This is a cross-post. Original article on onlyWebPro . Budak Kampung is a browser-based, top-down RPG set across a 1440×1440 world map with Malay, Chinese, and Indian cultural zones — built entirely…

22m ago ·dev.to