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Wayland and LVGL on PinePhone with Ubuntu Touch
Learn about Wayland and Ubuntu Touch on PinePhone... And how we build PinePhone Apps with LVGL
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The latest blog posts to take off on Hacker News. 6,947 posts.
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ListenBrainz moves to TimescaleDB
The ListenBrainz team has been working hard on moving our primary listen store from InfluxDB to TimescaleDB , and today at UTC 16:00 we’re going to make the switch.
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IPv4, IPv6, and a sudden change in attitude
A few years ago I wrote [_The World in Which IPv6 was a Good Design_](https://apenwarr.ca/log/20170810). I'm still proud of that article, bu...
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Big Sur is both 10.16 and 11.0
macOS 11.0 will identify itself differently according to the SDK used, and an environment variable does the same for scripts.
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Safely Reviving Shared Memory
At Mozilla, we want the web to be capable of running high-performance applications so that users and content authors can choose the safety, agency, and openness of the web platform. ...
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Systems Design for Advanced Beginners
This post is part of my Programming for Advanced Beginners series. Subscribe now to receive specific, actionable ways to make your code cleaner, every other week, entirely free.
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In Praise of ZFS on Linux's ZED 'ZFS Event Daemon'
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Cloudflare outage on July 17, 2020
Today a configuration error in our backbone network caused an outage for Internet properties and Cloudflare services that lasted 27 minutes. We saw traffic drop by about 50% across our network.
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I'm back into the grind of FreeBSD's wireless stack and 802.11ac
hi! Yes, it's been a while since I posted here and yes, it's been a while since I was actively working on FreeBSD's wireless stack. Life's...
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In search of 2.11BSD, as originally released
In Search of 2.11BSD, as released Almost all of the BSD releases have been well preserved. If you want to find 1BSD, or 2BSD or 4.3-TAHOE BS...
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Performance Improvements in .NET 5
Explore many performance improvements, big and small, that have gone into the .NET 5 runtime and core libraries to make apps and services leaner and faster.
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Confidential VMs
Google Cloud will now offer the ability to encrypt data in use, while it’s being processed in a Google data center
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The Floppy Disk of Floating Point
An essay that bids farewell to x87 – a computing architecture too long for this world.
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The most remarkable legacy system I have seen
There was one remarkable legacy system when I was working in a bank sometime back. This could be summarized as an internal AWS lambda equivalent. The offering was complete with full CI, CD, unit te…
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How to unc0ver a 0-day in 4 hours or less
By Brandon Azad, Project ZeroAt 3 PM PDT on May 23, 2020, the unc0ver jailbreak was released for ...
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A terrible, horrible, no-good, very bad day at Slack
This story describes the technical details of the problems that caused the Slack downtime on May 12th, 2020. To learn more about the process behind incident response for same outage, read Ryan Katkov’s post, “All Hands on Deck”. On May 12, 2020, Slack had our first significant outage in a long time. We published a…
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Booting a 486 from floppy with the most up-to-date stable Linux kernel
Back in August of 2019 I had a Sing-Along Week contest on RetroBattlestations with the challenge of playing a MIDI file synchronized to a speech synthesizer singing the lyrics. In my stash of cards I found an MQX-32M MIDI card (Roland MPU-401 clone) which I wanted to use for converting MIDI signals to interface to an…
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CoreBGP – Plugging in to BGP
In this post I'll provide some of my personal experience and history working with BGP, and introduce a new BGP library, CoreBGP, which can be used to build the next generation of BGP-enabled applications.
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UASP makes Raspberry Pi 4 disk IO 50% faster
You can view a video related to this blog post here: Does UASP make the Raspberry Pi faster?. A couple weeks ago, I did some testing with my Raspberry Pi 4 and external USB SSD drives. I found a USB 3.0 SSD was ten times faster than the fastest microSD card I tested. In the comments on the video associated with that…
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A crash course in just-in-time compilers (2017)
This is the second part in a series on WebAssembly and what makes it fast. If you haven’t read the others, we recommend starting from the beginning. JavaScript started out ...
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Scaling Linux Services: Before accepting connections
Theo Julienne is a software & infrastructure engineer.
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Raspberry Pi 4 PCIe bridge “chip”
After seeing the work done by Thomasz Mloduchowski and Colin Riley with managing to bridge the Raspberry Pi 4's PCI-Express bus to a USB 3.0 port, and then seeing these comments on hack-a-day, I thought I would give it a go too! So, here's a PCIe bridge chip that simply replaces the VL805 USB 3.
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System Hardening in Android 11
Posted by Platform Hardening Team In Android 11 we continue to increase the security of the Android platform. We have moved to safer def...
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Was Acorn's RISC OS an under-appreciated pearl of OS design?
I was a huge Archimedes fan and still have an A310, an A5000, a RiscPC and a RasPi running RISC OS. But no, I have to disagree. RISC OS was a hastily-done rescue effort after Acorn PARC failed to make ARX work well enough. I helped to arrange this talk by the project lead a few years ago. RISC OS…
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Guide to Linux System Calls (2016)
This complete guide explains all about Linux system calls with sample codes and results.
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Console, the vital tool that Apple abandoned
Console is the epitome of Apple’s problem with tools and support for its users, and is exactly what it needs to fix.