A dark card grid linking seven audiobook trainers

Building Interactive Trainers From My Audiobook Library

Building Interactive Trainers From My Audiobook Library I listen to a considerable number of business and leadership audiobooks, yet retain very little of their content a month later. Listening is passive; useful frameworks blur together with time; and “I read that one” readily becomes “I think I read that one.” I wanted the retention without replaying seven hours merely to recover the one idea I needed. I therefore built a compact production process that converts an audiobook into an interactive trainer, in which each concept and example becomes a card supporting three modes: Browse, Flashcards, and Quiz. Each book receives its own self-hosted site on my internal network; during a single afternoon, I applied the process to seven titles. ...

July 11, 2026 · 6 min · Robert D. White
SDR Research Stack

Always-On SDR: Building a Multi-Band Radio Intelligence Platform on Kubernetes

This post was originally published at w3rdw.radio, the ham radio blog of Robert White (W3RDW). It is cross-posted here for the WhiteMatter Tech audience. Always-On SDR: Building a Multi-Band Radio Intelligence Platform on Kubernetes I have been quietly building something i am pretty excited about. The idea started simple enough: i wanted a permanent, always-on radio monitor for 2m. It grew into something considerably larger. Today the stack covers 2m, 70cm, and the full HF spectrum from 3–28 MHz simultaneously: recording, decoding, transcribing, and tagging everything it hears, around the clock, with no manual intervention. ...

April 20, 2026 · 18 min · Robert D. White
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