George Georgovassilis writes about information technology architecture
Many old AM receiver circuits use positive feedback (routing some of the already amplified output signal back into the amplifier's input) for more gain. These circuits (eg. the reflex receiver [REF]) are fascinating designs which, although not overly complex, aren't easily understood. Starting with an existing circuit design, I tried to isolate the feedback loop … Continue reading 1-Transistor feedback amplifier
Overview The Scaled Agile Framework (SAFe) excels at coordinating delivery across multiple teams and focuses on execution. In contrast, Enterprise Architecture (EA) delivers the framework which develops the capabilities which are necessary for planning and execution. Large-scale agile transformations often hit a "complexity ceiling" which cannot be understood and handled without EA concepts, methods and … Continue reading The Strategic Necessity of Enterprise Architecture in SAFe
I like working at night, but nearly every laptop I've tried with Ubuntu can't reduce screen brightness to comfortable levels. Thankfully there is a convenient workaround. Under Ubuntu 24.04 / Wayland find Accessibility -> Zoom -> Colour filters and adjust to your liking. You probably want to pin the magnification factor to 1.00, too. The … Continue reading Minimising screen brightness in Ubuntu
A quickie: I switched back to Wayland but noticed that the mouse cursor appears misaligned for some apps [that is as specific as I'd like to be right now :-)]. It's like the cursor is actually pointing a cm below where it appears on the screen. This is a known issue [1] and there is … Continue reading Cursor offset misalignment under Ubuntu/Wayland
Cloudflare's cloudflared container doesn't come with a good health check - or so it seems [1]. The functionality is there, though. The tunnel needs to be started with metrics enabled (here: exposed to 127.0.0.1:20241) and the health check needs to call the proper check. cloudflared: image: cloudflare/cloudflared:latest ... command: tunnel --metrics 127.0.0.1:20241 run healthcheck: test: … Continue reading cloudflared docker health check
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