Best of Tech News — December 2025

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   Charity·19w

   Moving from WordPress to Substack

   A developer announces their migration from WordPress to Substack after a decade of blogging. The move is motivated by frustration with WordPress and the desire to join the more vibrant tech writing community on Substack. The author is working on the second edition of "Observability Engineering" and plans to share insights from that process. Email subscribers are being migrated, but comments cannot be transferred, and the original site will remain accessible to preserve existing links.

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   The Palindrome·21w

   The Story of the Mathematics of Machine Learning Book

   A mathematician shares his four-year journey of accidentally writing a 700-page machine learning textbook while building an audience through Twitter threads and Substack. Starting as a creative outlet after a failed startup, he validated the idea through early access sales, navigated platform algorithm changes, and eventually partnered with Packt Publishing. The story covers content creation strategies, the challenges of self-publishing versus traditional publishing, and how constraints like Twitter's character limit shaped his teaching style and visual approach to explaining complex mathematical concepts.

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   80 LEVEL·20w

   Assassin's Creed Black Flag Remake is Now Confirmed by PEGI

   PEGI has officially listed Assassin's Creed Black Flag Resynced, effectively confirming the long-rumored remake after over a year of leaks and indirect confirmations from Ubisoft employees. The game received a PEGI 18 rating, with concerns arising over the inclusion of in-game purchases not present in the original. An official announcement is expected at The Game Awards.

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   TechCrunch·18w

   A rough week for hardware companies

   Three hardware companies—iRobot, Luminar, and Rad Power Bikes—filed for bankruptcy within a week, facing similar challenges despite selling different products (robotic vacuums, lidar sensors, and e-bikes). Common issues included tariff pressures from Chinese manufacturing dependencies, failed major acquisition deals (notably iRobot's blocked Amazon acquisition), pandemic-driven revenue peaks followed by steep declines, and inability to diversify beyond their flagship products. The bankruptcies highlight structural challenges in hardware manufacturing, including supply chain concentration in China and difficulty maintaining growth after initial product success.

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