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How to build your own Raspberry Pi Cluster | Jeff Geerling
https://www.jeffgeerling.com/blog/2017/how-build-your-own-raspberry-pi-cluster, posted 2017 by peter in diy hardware howto video
How to build a 6-node Raspberry Pi "Dramble" cluster.
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Writing a Raytracer in Rust - Part 1 - First Rays
https://bheisler.github.io/post/writing-raytracer-in-rust-part-1/, posted 2017 by peter in development graphics howto rust
This is part one of a short series of posts on writing a simple raytracer in Rust. I’ve never written one of these before, so it should be a learning experience all around.
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How I wrote and published my novel using only open source tools – Techspiration + Ideas + Making It Happen
https://medium.com/techspiration-ideas-making-it-happen/how-i-wrote-and-published-my-novel-using-only-open-source-tools-5cdfbd7c00ca, posted 2017 by peter in howto opensource writing
I’ve recently published my first novel The Golden Legacy on Kindle and paperback through Amazon, achieving very professional results. Along the way, I created a process and a couple of tools based exclusively on open source software. Here’s my process.
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CI as Code Part I: Stateless Jenkins Deployments Using Docker | zwischenzugs
https://zwischenzugs.wordpress.com/2016/01/24/ci-as-code-stateless-jenkins-deployments-using-docker/, posted 2016 by peter in automation continuousdelivery howto toread virtualization
I don’t know about you, but I’ve always been uncomfortable with Jenkins’ apparent statefulness. You set up your Jenkins server, configure it exactly as you want it, then DON’T TOUCH IT.
Fortunately I now have a solution. With a combination of Docker, Python’s Jenkins API modules, the Jenkins job builder Python module, and some orchestration using docker-compose, I can reproduce my Jenkins state at will from code and run it in isolated environments, improving in iterable, track-able steps.
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Perfect responsive images: HTML5 and Bootstrap 4
inspire.blufra.me/html5-element-and-bootstrap-4-media-queries/, posted 2016 by peter in css howto html reference webdesign
Let’s harness the power of these new media queries to serve an image of the right size based on the device a user views our site on. We’re going to save a lot of bandwidth for the small devices, and serve a beautiful large image for larger ones.
We’ll do that by using the HTML5 picture element and its powerful source tag and media and srcset attributes.
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Microcontainers – Tiny, Portable Docker Containers
www.iron.io/blog/2016/01/microcontainers-tiny-portable-containers.html, posted 2016 by peter in development docker howto performance toread virtualization
A Microcontainer contains only the OS libraries and language dependencies required to run an application and the application itself. Nothing more.
Rather than starting with everything but the kitchen sink, start with the bare minimum and add dependencies on an as needed basis.
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How and Why I Taught My Toddler to Read
larrysanger.org/wp-content/uploads/2010/12/How-and-Why-I-Taught-My-Toddler-to-Read.htm, posted 2015 by peter in cognition howto opinion parenting toread
In this essay, I’m going to try to convince parents that it is possible, and may be beneficial, to teach their children to read even while they are babies or toddlers. I also have remarks for researchers throughout. First, I will explain how I taught my own little one, beginning at age 22 months, and introduce some of our methods. Then I will answer various general objections to the notion and practice of teaching tiny tots to read.
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Recept: Tjockpannkakor
wastholm.tumblr.com/post/135502300202/recept-tjockpannkakor, posted 2015 by peter in food howto inswedish reference
Eller amerikanska pannkakor, eller hotcakes, eller flapjacks, eller… Jag tröttnade på alla dessa recept på nätet som mäter ingredienserna i tum och uns och koppar och andra dumheter och letade upp ett recept med metriska mått. Skaparen av detta tyckte dock fortfarande att man ska hålla på och väga mjöl och andra torra ingredienser; det orkar inte jag så jag bestämde mig för att experimentera fram en variant som är enkel att komma ihåg och mäta upp.
- 12 msk (180 ml) vetemjöl.
- 2 msk bakpulver.
- 2 st ägg.
Blanda.
- 2 dl mjölk.
- 2 msk smält matfett.
Blanda.
Stek i gjutjärnspanna på medelhög värme. Det borde bli runt 10–12 pannkakor. Servera med sylt eller socker eller vad du nu gillar. Själv kör jag med lönnsirap och lite smör.
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Let’s encrypt automation on Debian
eblog.damia.net/2015/12/03/lets-encrypt-automation-on-debian/, posted 2015 by peter in howto linux security
Free SSL certificates for everyone! the https://letsencrypt.org/ initiative backed by Akamai, Cisco, Mozilla and EFF, is going to offer free certificates. On this post I am going to explain how I have automated the process of creation and renewal of certificates, on a Debian server with a lot of virtualhosts with the minimal modification of the apache conf files.
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The Food Lab: The Hard Truth About Boiled Eggs | Serious Eats
www.seriouseats.com/2014/05/the-secrets-to-peeling-hard-boiled-eggs.html, posted 2015 by peter in food howto reference
Lower your eggs straight from the fridge into already-boiling water, or place them in a steamer insert in a covered pot steaming at full blast on the stovetop. If boiling, lower the heat to the barest simmer. Cook the eggs for 11 minutes for hard or 6 minutes for soft. Serve. Or, if serving cold, shock them in ice water immediately. Let them chill in that water for at least 15 minutes, or better yet, in the fridge overnight. Peel under cool running water.
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