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Matt Brown
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@mattb@mastodon.nz xleem = ROT11(mattb) because ROT13 was already taken...
Aotearoa | New Zealandmattb.net.nzJoined March 2009

Matt Brown’s Tweets

Why are these useful? Standard diagrams aid in training and onboarding but the most important thing is that they build shared understanding. You're trying to trick all of your coworkers into thinking about the system the same way. What can you use this for? Onboarding to start.
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This is a great tale and I recommend you scroll back to the top and read the whole thing. But I want to say three things that I love about this tale: vocabulary, engineering, and culture.
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So every year after that, we celebrated Ben Smith day. Ben himself was mildly nonplussed but willing to roll with it. On Ben Smith day we retold the story of Katana and the importance of reliable design.
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Agree this is concerning - doubly so since the Police have been soo squirrely on their actual privacy policies around this. They only released portions of the PIA for ANPR use (fyi.org.nz/request/16225-) and straight out didn't do one in another case -fyi.org.nz/request/20071-
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This is very bad - and avoidable with stronger governance and audit trails. Auror and SaferCities need to evaluate whether or not this is a breach of their agreements with Police - but challenging when both rely on working with Police to achieve their purpose. twitter.com/nzherald/statu…
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I know and have worked with almost all the folks kicking off this exciting project - so I'll definitely be watching with interest!
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Hi! We are Stanza and we're on a mission to help you make sense of production. We’ve brought together some of the most experienced SREs and developers in industry to create an ML-enhanced platform bringing SRE wisdom to any engineer. Want to know more? stanza.systems
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Picture of poem with cute robot handling a pencil and the Stanza logo: An Eng gazing sadly at graphs Said “This thing has gone totally daft. Lines go up, lines go down, Lines go round and around - Till it seems like the future’s the past!”
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This misleading poster that NZ MoE is now distributing to schools is a shameful backdown from their previous guidance. If you see this poster around - I recommend getting it taken down ASAP.
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Now compare this against MoE's latest 'Help Slow COVID-19' poster that doesn't even start any recommendations under 1250ppm twitter.com/shoshanahjacob…
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Ministry of Education NZ poster "Help Slow Covid-19"
and other illnesses using the power of fresh air. If CO2 levels stay high for an hour or more, follow these tips to refresh the air:
Graphic with 3 foxes above green, amber and red bars. 
Green: <800ppm, happy fox with speech bubble "Fresh air, let's keep it that way". 
Amber: 1250+ppm, sad looking fox "It's getting stuffy in here, time to open more windows or reboot soon..."
Red: 2000+ppm, grumpy fox "Let's get some fresh air in here... ASAP!
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Do it! Do it now!
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Tomorrow--August 17 at 23:59 UTC--is the deadline for talk proposals for SREcon22 Asia/Pacific! View the CFP and send in your submission now: bit.ly/srecon22apcfp #srecon
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I'm really excited about Oliver's work and have a related project that I'll reveal soon.. in the meantime, your answers to his survey would be really appreciated!
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What features would you want in a portable CO2 monitor? A reliable good quality CO2 sensor is a given.
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Picture of "The Homer" car that was designed by Homer Simpson in an episode and has all the features one could imagine, but failed spectacularly in the show.
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"there is some confusion" is a very polite way of saying the Ministry of Health is spreading dangerous misinformation by telling people not to test, and to ignore positive results.
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Since there is some confusion about this, a thread with some scientific evidence on RATs and how to interpret a positive result. TLDR: RATs are actually very good at telling when you’re infectious, which is what matters most for reducing spread
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Worth looking offshore and noting basically everywhere else has seen multiple waves: We’re experiencing our first, others are up to their fifth or sixth. This is a long way from over.
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NZ past the peak and on 'steady plateau' of lingering cases, but mysteries persist nzherald.co.nz/nz/politics/co
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Replying to
"Anyone who has symptoms within 90 days of having Covid-19 should still get a test and follow public health guidance". "Rapid tests don't detect historic cases - a positive result means you are currently infectious."
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FYI :) Tricksy one.
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TIL “realpath ../../dir/absent” returns nothing on stdout (just error on stderr, no zero exit code). If you have: TO_GO=$(realpath ../../something) sudo rm -rf ${TO_GO}/* you might want more error checking. (And to reconsider how badly you want a wildcard and/or sudo there.)
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I said goodbye to Google SRE last Friday after 15 years. I'm taking 3 months off to recharge and plan what's next. Probably leaping into the unknown of building a business myself... Exciting times!
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Wow.
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OH MY Our extraterrestrial helicopter spotted the parachute and back-shell that guided the @NASAPersevere rover to the surface of Mars over a year ago. And what a sight🤩 Space debris crash-landed on another world snapped by an aerial drone. What a timeline we live in.
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I thought we called this "McGhee's Law' ?
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Steve's Maxim: "If you look at graphs/charts/consoles with no explicit reason, you will find a problem that isn't really a problem."  corollary: all large distributed systems are always slightly broken, and that's fine.
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What would help the recovery (I mean this genuinely - I love being out & about with my family in Auckland), is having things like robust ventilation standards and great indoor air quality, and making these standards visible to the public. We should help businesses to do this./5
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Why are we not doing this across NZ ?! No point doing some air scrubbers, sometime soon. "Every public classroom" and asap, please.
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I think Victoria should be so proud of this. Amazing asset and working through any COVID wave, plus flu season and - dare I say it - any fire season with significant smoke effects. 51,000 in place and thousands more coming. Every public classroom. twitter.com/DrPieterPeach/…
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Here's my attempt to establish more precise terminology to replace each instance of "root cause". Thanks for the suggestion !
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Replying to @_pkill and @norootcause
I feel like it would help to have some established terminology for the things on Alex's list so we wouldn't need to talk about "root cause". Or maybe the terminology exists and I just don't know about it?
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Excellent summary of the last few weeks...
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Replying to @obra and @quinnnorton
Um, let's see. Strap in, wild ride ahead. NZ govt workers who had public-facing roles (border, healthcare, police, defence) were required to be vaccinated. This became a focusing cause for Covid deniers, butmahs, and "Covid is killing", plus a few Qs, neonazis, etc. 1/n
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