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UPDATE: I’m leaving this series up for historical purposes, but please note that I no longer recommend Ubuntu Core or snaps for use in robotics. This is the second blog post in this series about creating your first robot with ROS and Ubuntu Core. In the previous post we walked through all the hardware necessary to follow this series, and introduced Ubuntu Core, the operating system for IoT devices. We installed it on our Raspberry Pi, and u..
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Although I mostly blog for myself, I’m curious as to how well my blog performs. So every month on the 20th this year I want to post a simple blog status report. These reports will include statistics for the previous month: from the 20th to the 19th. For instance, this blog report covers the time period of December 20, 2017, through January 19, 2017.
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This sequence is Eliezer's second attempt at The Great Canon of Modern Rationality. He took the insight-porn-style of the original and recast it into a sleeker (and quite frankly, more useful) theory-then-exercise format. Not unlike the original, however, he begins by digging beneath the idea of truth:The Sally-Anne False-Belief task is an experiment used to tell whether a child understands the difference between belief and reality. It goes..
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Around the holidays I start putting together my yearly review. These reviews are ways for me to reflect on how the year went.
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Cell phone addiction. Sugar addiction. Alcohol addiction. Social media. Cigarettes. Marijuana. Email. Drugs. Social media. Caffeine. I think these are bad when taken to the excessive. But when consumed in reasonable amounts all of the above can be beneficial. Hospitals use morphine as a pain killer in extreme situations. Alcohol, with all its toxic effects on the body, can still serve as a “social lubricant”, and a fast way to relax ....
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Google is working again on S2 a spatial library !!! And they even have created a website to communicate about it s2geometry. The C++ port contains a Python Swig interface. I’ve been using an unofficial Python port with Jupyter for years now things are way more simpler. If you are on Arch I’ve create a package, simply install AUR s2geometry-git First we want a clean Jupyter install from scratch: virtualenv3 ~/dev/venv3 source ~/dev/venv3/bin..
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Insights from SoundCloud’s DeveloperBridge Trainee Program
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developers.soundcloud.com
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8 years ago
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eng
Back in 2016, the SoundCloud People Team collaborated with engineering management in an effort to bring more junior engineers into the…
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Insights from SoundCloud’s DeveloperBridge Trainee Program
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developers.soundcloud.com
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8 years ago
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eng
Back in 2016, the SoundCloud People Team collaborated with engineering management in an effort to bring more junior engineers into the…
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A chain is no stronger than its weakest link” Any improvement made anywhere besides the bottleneck is an illusion. Any improvement made after the bottleneck is useless because it will always remain starved waiting for work from the bottleneck. Any improvement made before the bottleneck merely results in more ‘work’ piling up at the bottleneck. Identify the system’s constraint(s) (that which prevents the organisation from ob....
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Last November, my wife and I joined our local Toastmasters club. Toastmasters, for those who are unfamiliar, is a public-speaking development group. I’m not sure how good a speaker I am, but I know regardless of how good or bad I am, I want to improve. In fact, one of my new year’s resolutions for 2018 is professional a personal development. So Toastmasters just makes sense.
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A chain is no stronger than its weakest link” Any improvement made anywhere besides the bottleneck is an illusion. Any improvement made after the bottleneck is useless because it will always remain starved waiting for work from the bottleneck. Any improvement made before the bottleneck merely results in more ‘work’ piling up at the bottleneck. Identify the system’s constraint(s) (that which prevents the organisation from ob....
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We have stopped blogging Once blogging was a thing Not a thing to talk about business But a place where people would share ideas thoughts moments emotions stories with each others. I think we should do more of that We should start blogging again. We should bring this conversation back. We left to the Facebooks and the Twitters take the control of the conversations (and no, I am not ranting against these platforms, for a change… see, I actua..
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We have stopped blogging Once blogging was a thing Not a thing to talk about business But a place where people would share ideas thoughts moments emotions stories with each others. I think we should do more of that We should start blogging again. We should bring this conversation back. We left to the Facebooks and the Twitters take the control of the conversations (and no, I am not ranting against these platforms, for a change… see, I actua..
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Open source maintainers give up their own time to create great pieces of free software, which we then use to create business value. In our State of Open Source Security Report, open source consumers and maintainers were asked about their security expertise, actions and sense of ownership — and the results were very mixed.
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Many years ago, inspired by a blogging platform called Svbtle , I built a clone called Simple. It was pretty simple - just a minimal Flask app backed by a Sqlite database, but had some cool features. You could log in with Mozilla’s Persona (RIP), edit posts using an in-browser editor and drag ‘n’ dr...
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Many years ago, inspired by a blogging platform called Svbtle , I built a clone called Simple. It was pretty simple - just a minimal Flask app backed by a Sqlite database, but had some cool features. You could log in with Mozilla’s Persona (RIP), edit posts using an in-browser editor and drag ‘n’ dr...
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This article is about nothing surprising but may act as a reminder to anyone that wanders online or that manages a community. There's too much already written about the subject of echo chambers so what I'll do is list ideas that I find interesting but that aren't mentioned enough.
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I finally got GitLab CI up and running for the SnailLife Go port. The CI just runs the bash scripts I already had to test and build client and server. I had to make some changes for the tests to be able to run without the auth config files (which I obviously don’t want to submit to a public repo). Now, if an auth config file is not available I look for environment variables to get the Auth0 client ID and secret. Gitlab lets you set secret e..
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As tradition follows, we usually get screenings of interesting movies in class, today we got a screening of Moon Machines [1] a documentary by the science channel about the Apollo Guidance system and their corresponding code.This documentary was about the testimonies of people in MIT and the general creation of the whole Apollo mission. What is interesting is that some years ago, I saw a GitHub repository of the commentated Apollo code, It ..
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In my InfoSec class, we were asked to show a preliminary attempt at google hacking. We were tasked to try to get some indices of google hacking performed, to show us the importance of monitoring our site’s search engine exposure and possible file requests permissions. Examples included: site:something filename:admin.php While it certainly is something that sounds fun, for me this is more of a gimmick, nevertheless it made me think for a sec..
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BenchmarkDotNet v0.10.12 has been released! This release includes: Improved DisassemblyDiagnoser: BenchmarkDotNet contains an embedded disassembler so that it can print assembly code for all benchmarks; it’s not easy, but the disassembler evolves in every release. Improved MemoryDiagnoser: it has a better precision level, and it takes less time to evaluate memory allocations in a benchmark. New TailCallDiagnoser: now you get notific....
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BenchmarkDotNet v0.10.12 has been released! This release includes: Improved DisassemblyDiagnoser: BenchmarkDotNet contains an embedded disassembler so that it can print assembly code for all benchmarks; it’s not easy, but the disassembler evolves in every release. Improved MemoryDiagnoser: it has a better precision level, and it takes less time to evaluate memory allocations in a benchmark. New TailCallDiagnoser: now you get notific....
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As tradition follows, we usually get screenings of interesting movies in class, today we got a screening of Moon Machines [1] a documentary by the science channel about the Apollo Guidance system and their corresponding code.This documentary was about the testimonies of people in MIT and the general creation of the whole Apollo mission. What is interesting is that some years ago, I saw a GitHub repository of the commentated Apollo code, It ..
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In my InfoSec class, we were asked to show a preliminary attempt at google hacking. We were tasked to try to get some indices of google hacking performed, to show us the importance of monitoring our site’s search engine exposure and possible file requests permissions. Examples included: site:something filename:admin.php While it certainly is something that sounds fun, for me this is more of a gimmick, nevertheless it made me think for a sec..
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From 2016 to 2017, I was involved in 9 data breaches that we knew of. They don't seem to be stopping and that is quite worrying.
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Just over two years ago, I wrote a little version of Snake for a 4x4x4 LED cube. Since then I've picked up several little Arduino devices, include a 6x6x6 LED cube, an Arduino Esplora, and the one I'm most excited about, an Arduboy. For every Arduino I bought, I had some grand plan. I never followed through on any of them though. It wasn't because of the technical challenge of writing an executable less than 32k in size.
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TL;DR fixed bid, value-priced business consulting is OK software consulting billed hourly is also OK they are distinct lines of work and expertise Background There are three highly-visible people advocating strongly against hourly billing and in favor of value pricing. Jonathan Stark is so jazzed about it that he wrote an e-book on it. Patrick McKenzie and Thomas Ptacek have also written fairly extensively along the same lines. Problems....
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It’s been a couple of months since I implemented a more traditional-looking comment system on my blogs, and, coupled with provided meaningful comments on other people’s blogs, I’ve had a moderate amount of success. One issue I’ve had to deal with, and I’m sure other bloggers deal with this as well, is the number of spam comments from bots. I do look at and approve / deny every comment, so thankfully none of these have actually appeared in..
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Secret Hacking Session: Oracle Background Process Communication, Exotic Wait Events and Some Tracing too
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tanelpoder.com
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8 years ago
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eng
Update: I unexpectedly ended up falling ill and decided to reschedule this hacking session to January 24, 10am PST. No need to re-register if you already have done so. Sorry for the inconvenience. I will upload the video to Youtube after the event. Since I’m running my Advanced Oracle Troubleshooting Training in the end of this month, I’ll do one of my “secret” hacking sessions too for promotion and noise-making reasons next week! ;-)
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Secret Hacking Session: Oracle Background Process Communication, Exotic Wait Events and Some Tracing too
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tanelpoder.com
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8 years ago
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eng
Update: I unexpectedly ended up falling ill and decided to reschedule this hacking session to January 24, 10am PST. No need to re-register if you already have done so. Sorry for the inconvenience. I will upload the video to Youtube after the event. Since I’m running my Advanced Oracle Troubleshooting Training in the end of this month, I’ll do one of my “secret” hacking sessions too for promotion and noise-making reasons next week! ;-)
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npm Shrinkwrap reloaded: Locking npm Deps with Package-Lock and Yarn.Lock
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snyk.io
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8 years ago
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eng
Locking or “pinning” dependencies is a widespread best practice in Ruby, Python, and other ecosystems. In Node.js locking was much less widespread, until recently, thanks to the improvements provided by package-lock.json and yarn.lock. This post discusses how each of these solutions works and why you may want to use them.
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