Best of Raspberry Pi — September 2025

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   Article

   Jeff Geerling·30w

   I regret building this $3000 Pi AI cluster

   A detailed analysis of building a $3000 Raspberry Pi cluster using 10 Compute Blades with CM5 modules, comparing its performance against more expensive alternatives. The cluster achieved 325 Gflops in HPC benchmarks but struggled with AI workloads, delivering only 0.28 tokens per second for large language models. Despite being energy efficient and compact, the Pi cluster offers poor price-to-performance ratio compared to traditional desktop hardware, making it suitable only for niche use cases requiring high node density or physical separation.

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   Article

   omg! ubuntu!·29w

   Meet the Coolest (and Most Expensive) Raspberry Pi Ever

   Raspberry Pi launched the Pi 500+, a premium keyboard PC featuring mechanical switches, RGB backlighting, and built-in SSD storage. Priced at $200/£175, it's the most expensive Raspberry Pi device yet, targeting enthusiasts who want better build quality and tactile experience. The device includes Gateron KS-33 Blue switches, customizable LED lighting, 16GB RAM, 256GB NVMe storage, and an aluminum heatsink for thermal management.

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   Article

   Kali Linux·29w

   Kali Linux 2025.3 Release (Vagrant & Nexmon)

   Kali Linux 2025.3 introduces significant updates including refreshed HashiCorp Packer and Vagrant workflows, Nexmon support for Raspberry Pi Wi-Fi monitor mode and injection, 10 new security tools, and enhanced NetHunter mobile capabilities. The release also drops ARMel architecture support, adds configurable VPN IP panel plugin for Xfce, and includes CARsenal car hacking toolkit improvements with new automotive Metasploit modules.

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   Article

   Jeff Geerling·31w

   CubeSats are fascinating learning tools for space

   CubeSats are small, standardized satellites that can be built using affordable components like Raspberry Pi computers and microcontrollers. These cube-shaped satellites have democratized space access, reducing costs from millions to thousands of dollars for construction and $85,000 for launch. Students and educators can now build functional CubeSats for STEM learning, with kits available from companies like MySat and Robinson Aerospace. The post explores various CubeSat projects, including educational initiatives, security research platforms, and actual space missions like SilverSat launching on a Falcon 9 rocket.

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