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Martin von Zweigbergk, who built the Jujutsu version control system while at Google, has been named chief technology officer of East River Source Control, a startup developing next-generation version control platforms. He will oversee engineering there while continuing as a core maintainer of Jujutsu, which remains open source under Apache 2.0. ERSC's storage product is set to enter private beta later this month.
Best Buy is offering the Lenovo Yoga 7i 2-in-1 laptop for $749.99, down from its original $1,199.99 price, as part of a week-long Labor Day sale. The discounted model includes a Core 7 Ultra 256V processor, 16GB of LPDDR5X memory, 512GB SSD, and a 1920x1200 IPS touchscreen with a 60Hz refresh rate.
Amazon has cut $50 off the Amazfit Cheetah 2 Pro Smart Watch, bringing it from $449.99 to $399.99, an 11% reduction that marks the first recorded price drop for the device since its April 2026 launch. The running-focused smartwatch features a titanium-alloy case, dual-band GPS, a 1.32-inch AMOLED display, and up to 20 days of battery life in lighter use.
Best Buy's Labor Day sale is offering unlocked iPhone Air models at $150 off, with open-box units discounted up to $359. Meanwhile, Amazon has cut iPhone 17 Pro prices by up to $285, and Apple's refurb store is briefly offering a 16GB/1TB M5 MacBook Air configuration for $240 off before stock likely runs out.
Sonos has released the Ace Ultra, a successor to its original Ace headphones, adding the ability to pull audio from any Sonos speaker or soundbar rather than just a limited set of compatible soundbars. The feature, powered by a new Headphone Engine 2 platform with redesigned Wi-Fi hardware, lets users move sound from TVs, turntables or streaming apps to the headphones with a single button press, though it remains an opt-in Early Access feature.
Sonos has introduced the Ace Ultra, a premium successor to its Ace noise-canceling headphones priced at $449. The new model features Sonos-designed 40mm drivers, upgraded adaptive noise cancellation, a 10-microphone array, and Headphone Engine 2, which enables direct one-button linking to a user's Sonos system. Preorders open now, with shipping starting September 29 in black, soft white, agave and sand colorways.
An analysis compares using televisions versus dedicated monitors for computer use, focusing on refresh rates, input latency, and color depth. It finds monitors generally offer higher refresh rates, lower latency (1-4ms vs 9-12ms on TVs), and better color support at lower price points than comparable TVs.
A researcher built and trained a small transformer model from scratch in 1.5 hours on a single RTX 5090 GPU, achieving 44% accuracy on the ARC-AGI-1 public evaluation set and 7% on ARC-AGI-2. The model, an upgraded and cheaper version of a previous open-source release, matches the performance of existing test-time-training approaches like TRM and HRM while using far less compute.
A 12-terabyte trove of Steam2-era content dating from 2003 to 2013 has appeared online, reportedly containing nearly every uploaded build for that decade, including cut Portal 2 assets, Half-Life 2: Episode 3 files, and beta versions of Left 4 Dead 2, CS:GO, Spore, and Dragon Age: Origins. Researchers say the material came from an unsecured public API tied to Valve's old distribution system, which was replaced by SteamPipe in 2013 and left this data exposed without any password protection.
Amazon's Labor Day sale is offering steep discounts on Apple products, including the AirTag 2 4-pack for $79.99 (about $20 per unit), its lowest price ever. Amazon Resale is also offering up to 60% off refurbished Apple items like MagSafe Battery packs, AirPods, and Apple Pencil, with an extra 30% off at checkout on some listings.
Huawei has started taking pre-orders in China for its second-generation tri-fold phone, the Mate XT 2, ahead of a formal launch on September 7. The device switches to an inward-folding mechanism that fully shields the inner display, unlike the zig-zag fold on the original Mate XT that left part of the screen exposed, and will come in 16GB/512GB and 16GB/1TB configurations, including a purple variant with a built-in privacy screen.
A hobbyist developer detailed a personal project to implement the classic 3-2-1 backup strategy—three copies of data, on two different media, with one copy offsite—entirely using free, self-managed tools. The effort was sparked by frustration with paying for cloud storage like Google One just to access files they already own, and involved syncing a Minisforum mini-PC, a Lenovo laptop, external hard drives, and mobile devices.