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mold linker 3.0.0 ships, now fully rewritten in Rust

The mold high-speed linker project has released version 3.0.0, its first version built entirely in Rust after being ported from C++. Version 2.42.1 remains the final C++ release, and the new version is designed as a drop-in replacement, accepting the same command-line options and producing equivalent output while matching prior linking performance.

Mathematician Reflects on Life After Competition Culture Ends

Christian Szegedy recounts his experience growing up immersed in competitive mathematics in Hungary and the subsequent emptiness after his last contest. He compares the pursuit of pure mathematics to exploring an uncharted jungle, emphasizing its challenging yet rewarding nature. Szegedy highlights the personal impact of leaving a deeply ingrained community and activity behind.

AWS CEO says $68 billion in data centers blocked amid community opposition

Amazon Web Services CEO Matt Garman published a roughly 3,000-word post on October 2 arguing that local opposition to data center construction threatens America's position in the AI race. He said $68 billion worth of data center projects were blocked in the second quarter of 2026 alone, and warned that roughly 100 pending moratoriums nationwide could cause lasting economic and national security harm. Garman also outlined Amazon's 'Built Together' program meant to offer more benefits to host communities and sought to rebut common objections to data center buildouts, including concerns about water and power use.

Munich's RobCo reaches $1B valuation via employee share sale

German robotics startup RobCo has surpassed a $1 billion valuation through a secondary share sale that let long-tenured employees cash out part of their equity. Existing backers Sequoia, Lightspeed, Greenfield, Kindred, Lingotto and Promus Ventures joined new investors Cherry Ventures and European Tech Collective in the round, which follows a $100 million Series C announced in January 2026. The company plans a 2027 commercial launch of its autonomous robot Alfie, with a focus on expanding in the US manufacturing market.

Amazon discounts Apple's new M6 Mac Mini to $779.99

Amazon is selling the base configuration of Apple's new M6-powered Mac Mini for $779.99, down from its $899 list price. The discounted model includes 256GB of storage, 16GB of RAM, and a 12-core CPU and GPU. The deal is part of a broader set of October Prime Day promotions currently live on Amazon.

White House names AI task force members as new 'AI czar' sets policy goals

The Trump administration's newly appointed artificial-intelligence lead outlined priorities and disclosed the membership of a White House task force overseeing AI policy. Separately, community banks pushed back against federal regulators over proposed crypto charters, and reporting on a near-miss aboard flight 1073 highlighted security gaps at a Dubai airport.

Amazon pledges $1 billion community fund as data center backlash grows

Amazon Web Services CEO Matt Garman announced a five-year, $1 billion-plus initiative called Built Together to fund local priorities—education, job training, energy affordability, and water conservation—in towns hosting its data centers. Garman said Amazon will also stop using nondisclosure agreements with government partners and will hold open houses to increase transparency about its facilities.

Ars Technica explains how Hall-effect and TMR keyboard switches differ from mechanical ones

A new explainer breaks down how contactless keyboard switches—including optical, Hall-effect, and TMR (tunneling magnetoresistance) designs—work compared to traditional mechanical switches, which rely on two metal leaves physically touching to close a circuit. These newer switch types have grown more common over roughly six years and typically cost more than standard mechanical keyboards, which themselves cost more than basic membrane boards.

Unilever buys Grüns and Dr. Squatch as part of growth push

Unilever has acquired nutrition brand Grüns and men's personal care company Dr. Squatch, according to Fast Company's Modern CEO newsletter. The acquisitions are described as part of a broader growth strategy that also involves unconventional brand collaborations and upgrading established labels like Dove.

Apple offers hardware replacements for iPhone 18 Pro Max cellular outage on AT&T

Apple confirmed to 9to5Mac that a small number of iPhone 18 Pro Max units on AT&T have lost cellular service entirely, leaving affected users unable to make calls. The company released iOS 27.0.1 and a carrier settings update to prevent further occurrences, but says customers already affected will need a hardware replacement through Apple or AT&T support.

iOS 27 adds Lock Screen Focus toggle tailored to iPhone Duo

Developer pdfu, working from an iPhone Duo simulator, found a new control on the device's Lock Screen that lets users quickly disable and re-enable an active Focus mode without unlocking the phone. The toggle sits above the camera and flashlight icons, and the active Focus mode's name also now appears in the status bar near the clock. This follows other Duo-specific tweaks pdfu has uncovered, such as a relocated dock and new StandBy views.

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