Upon2020 (archive)
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An angry future has broken with the past
It can’t continue as it has. Raw materials consumption. Pollution. CO2 emissions. Healthcare costs. Debt. We have known this for years. But somehow, that different future always has been – well, in the future, only to be worried about in the abstract. And then, all of a sudden, it is crystal clear that we are…
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Day 2 of working on a treadmill and on the computer
Last year, I remodelled my home office, and setup two (self-built) standing desks (post). Last week – you guessed it – I added an under-the-desk treadmill. And today was the second day I spent most of the working day on it. Here are my observations: All walking speeds below about 2-2.5 mi/hour are fine. It…
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In praise of masterclass
Take a master of their art, and let them be coached, for an hour, by a grandmaster. In public, with everybody there to listen, learn and be amazed. That is a masterclass in a nutshell. Wikipedia claims that masterclasses exist in “painting, drama, any of the arts, or on any other occasion where skills are…
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How to change your Ethernet’s Mac address on boot (Linux)
Let’s say you bought three cute little USB-to-Ethernet adapters for your Raspberry Pi Zeros running UBOS. Plug one in, works like a charm. … as long as you don’t attempt to use two with two Pi Zeros at the same time, on the same Ethernet network. Or all three. Because if you do that, as…
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The 2nd Raspberry Pi in the House Now Controls a Closet Fan
When I remodeled my home office last year, I put a (bathroom) fan into the ceiling of the server closet. This would allow the heat from the servers leave the house via the attic, without heating my office up too much in the summer. It gets quite a bit a sun and heat even without…