Writing by Farhan Sadeek: memos on the companies building the hardware and infrastructure underneath AI.https://writing.farhansadeek.com/https://writing.farhansadeek.com/posts/wafer/https://writing.farhansadeek.com/posts/wafer/Wafer builds autonomous performance-engineering agents to optimize GPU kernels and inference stacksMon, 14 Sep 2026 14:56:28 GMThttps://writing.farhansadeek.com/posts/extropic/https://writing.farhansadeek.com/posts/extropic/Extropic is a physics-based hardware company developing thermodynamic computing chips that harness thermal noise to run probabilistic AI models with extreme energy efficiency.Fri, 11 Sep 2026 17:42:10 GMThttps://writing.farhansadeek.com/posts/radixark/https://writing.farhansadeek.com/posts/radixark/RadixArk builds open-source infrastructure and managed tools for scaling, training, and serving large-scale AI models.Wed, 09 Sep 2026 15:27:44 GMT