How to Install MacOS Sequoia Public Beta
The MacOS Sequoia public beta program has just began, offering Mac users an opportunity to get early access and experience with the upcoming major MacOS system software release. Like all betas, the MacOS Sequoia public beta is not for everyone though, particularly since beta system software is much buggier and less stable than final versions. … Read More ⌘ Read more
It took me so long to find the cause of a memory leak in GoBlog. I thought it was smart to use a cache for prepared database statements. But I didn’t read the documentation and didn’t know that prepared statements need to be closed when they are no longer needed to free up the allocated resources. 🤦♂️ I finally fixed it by removing the prepared statement cache altogether. Less code, fewer problems in the future, and the cache wasn’t much of an improvement anyway. I also learned about the usefulness of memory profil … ⌘ Read more
Kubestronaut in Orbit: Eleni Grosdouli
Get to know Eleni This week’s Kubstronaut in Orbit, Eleni Grosdouli, brings diverse experiences to her role as a DevOps Consulting Engineer at Cisco Systems. She’s the go-to person for DevOps and Kubernetes Automation, with a passion for… ⌘ Read more
Apple Releases Fourth Beta of visionOS 1.3 to Developers
Apple today released the fourth beta of an upcoming visionOS 1.3 update to developers, allowing them to test new features ahead of the software seeing a public launch. The fourth visionOS 1.3 beta comes a week after the release of the third beta.

Missouri v. IBM! Mozilla Executive v. Mozilla! Internet Archive & Piracy! ⌘ Read more
[47°09′16″S, 126°43′30″W] Transponder still failing
Social media age limits would ‘exacerbate the problem’, says expert
A ban on social media for children under 16 is technically unfeasible and would not work, according to one US technology veteran. ⌘ Read more
Get the iPadOS 18 Default Wallpapers
iPadOS 18 includes an array of new wallpapers to adorn the backdrop of the iPad, with colorful interesting shapes that are pleasing to the eye. While they may be included in the iPadOS 18 beta, that doesn’t mean you have to brave the betas just to gain access to the new default wallpapers. We’re including … Read More ⌘ Read more
Petits morceaux de vacances
Cette année, les vacances commencent tôt : magie de l’actualité du pays, elles tombent au moment même où la fine fleur politique française se déchaîne pour montrer l’ampleur de ses capacités de nuisance. D’un côté, on comprend de plus en plus mal la manœuvre de Macron. S’il est évident qu’il a voulu nuire au Rassemblement National […] ⌘ Read more
[47°09′16″S, 126°43′25″W] Transfer 25% complete…
Revealed: iOS 18 Will Be Compatible With These iPhone Models
iOS 18 will be compatible with the same iPhone models as iOS 17, according to a post on X today from a private account with a proven track record of sharing build numbers for upcoming iOS updates.
iOS 18 will be compatible with the iPhone XR, and hence also the iPhone XS and iPhone XS Max models with the same A12 Bionic chip, but olde … ⌘ Read more
[47°09′16″S, 126°43′11″W] Automatic systems disengaged due to heavy rain
Revealed: Complete iPhone 16 Pro and iPhone 16 Pro Max Dimensions
This year, Apple is set to increase the size of its premium iPhones, and it will be the first size update we’ve had in several years. While we’ve known for some time that the iPhone 16 Pro will measure in at 6.3 inches (up from 6.1) and the Pro Max will measure in at 6.9 inches (up from 6.7), we have not had a complete picture of every dimension, until now.

If you are going to sell, return, or give away a Mac, you almost certainly want to factory reset the computer first. Performing a factory reset on a Mac will erase all data on the Mac, and return it to a clean slate as if the computer were brand new, without any data or personal … Read More ⌘ Read more
Cloud strategies for the best cost and results: public vs private vs hybrid cloud
Member post originally published on Netris’ blog In an era when the typical business is overspending on cloud resources by a rate of 20 to 30 percent, according to IDC, finding ways to rein in cloud costs is critical…. ⌘ Read more
iPhone 16 Display Production Set to Start in June
Production on displays destined for the iPhone 16 and iPhone 16 Pro models will start in June, according to display analyst Ross Young. In a tweet limited to subscribers, Young said that panel production will begin next month, with the smaller-sized iPhone 16 and iPhone 16 Pro to have the highest volume production … ⌘ Read more
New iPads Get Redesigned Magnets for More Smart Folio Viewing Angles
Apple has new Smart Folio cases for its latest M4 iPad Pro and M2 iPad Air models that boast a wider range of viewing angles, and thanks to Marques Brownlee, we now know how it’s done.
With the help of some magnet paper, MKBHD reveals that Apple has added bigger, more cubic magnets to the M4 iP … ⌘ Read more
🧮 USERS:1 FEEDS:2 TWTS:970 ARCHIVED:72765 CACHE:2439 FOLLOWERS:16 FOLLOWING:14
🧮 USERS:1 FEEDS:2 TWTS:969 ARCHIVED:72758 CACHE:2447 FOLLOWERS:16 FOLLOWING:14
iOS 16.7.8 & iPadOS 16.7.8 Updates for Older iPhones & iPads Available
Alongside iOS 17.5 and iPadOS 17.5, Apple has also released iOS 16.7.8 and iPadOS 16.7.8 updates for older model iPhone and iPads. iOS 16.7.8 and iPadOS 16.7.8 include security fixes and do not appear to have any other changes. iOS 16.7.8 and iPadOS 16.7.8 are available for iPhone 8, iPhone 8 Plus, iPhone X, iPad … [Read More](https://osxdaily.com/2024/05/14/ios-16-7-8-ipados-16-7-8-upda … ⌘ Read more
你管这破玩意叫指针?
内存,通常被严谨地画成下面这个样子,一个下方是低地址上方是高地址的格子楼。
但我今天换种画法,画成下面这个样子。
每个格子代表内存中的 1 个字节(8 位),格子上的数字就代表内存地址,我也直接用 10 进制来表示了,免得 16 进制又算不明白了。
目前内存是完全空的,格子里没有任何内容。
试想一下,如果你忘掉所有的语法规则和编程规范,你会如何描述对这些内存格子的操作呢?
一、类型系统
很简单,往格子 3 处放个数字 29,往格子 6 处放个数字 38,就这么简单直接地描述即可。

- 1U patch panel
- a mini ryzon 16 core 64G ram, fedora (new main)
- multiple docker services hosted.
- multiple docker services hosted.
- synology nas with 4 2TB drives
- turris omnia WRT router -> fiber uplink
network is a mix of wireguard, zerotier.
- wireguard to my external vms hosted in various global regions.
- this allows me ingress since my ISP has me behind CG-NAT
- this allows me ingress since my ISP has me behind CG-NAT
- zerotier is more for devices for transparent vpn into my network
i use ssh and remote desktop to get in and about. typically via zerotier vpn. I have one of my VMs with ssh on a backup port for break glass to get back into the network if needed.
everything has ipv6 though my ISP does not provide it. I have to tunnel it in from my VMs.
@mckinley@twtxt.net for me:
- a wall mount 6U rack which has:
- 1U patch panel
- 1U switch
- 2U UPS
- 1U server, intel atom 4G ram, debian (used to be main. now just has prometheus)
- 1U patch panel
- a mini ryzon 16 core 64G ram, fedora (new main)
- multiple docker services hosted.
- multiple docker services hosted.
- synology nas with 4 2TB drives
- turris omnia WRT router -> fiber uplink
network is a mix of wireguard, zerotier.
- wireguard to my external vms hosted in various global regions.
- this allows me ingress since my ISP has me behind CG-NAT
- this allows me ingress since my ISP has me behind CG-NAT
- zerotier is more for devices for transparent vpn into my network
i use ssh and remote desktop to get in and about. typically via zerotier vpn. I have one of my VMs with ssh on a backup port for break glass to get back into the network if needed.
everything has ipv6 though my ISP does not provide it. I have to tunnel it in from my VMs.
[47°09′16″S, 126°43′00″W] Transfer completed
iOS 16.7.6, iPadOS 16.7.6, iOS 15.8.2, & iPadOS 15.8.2 Released for Older iPhone & iPad Models
Apple has released updates to older iPhone and iPad models as iOS 16.7.6, iPadOS 16.7.6, iOS 15.8.2, & iPadOS 15.8.2. These software updates are available specifically for devices that are not running iOS 17.4 and iPadOS 17.4. Specifically, iOS 16.7.6, iPadOS 16.7.6, are available for iPhone X, iPhone 8, iPhone 8 Plus, iPad Pro 9.7″ … [Read Mo … ⌘ Read more
[47°09′59″S, 126°43′16″W] Taking samples
[47°09′31″S, 126°43′16″W] –no signal–
Sequent 16 Solid State Relays 2A/24V HAT Targets Raspberry Pi Boards
Sequent Systems recently unveiled their latest offering: a 16 Solid State Relays 2A/24V HAT, an advanced expansion board tailored for the Raspberry Pi. This innovative product represents a substantial improvement over conventional mechanical relay HATs. It provides a robust and reliable solution, particularly suited for applications that demand frequent relay operations. The product page states […] ⌘ Read more
[47°09′16″S, 126°43′09″W] 3970 days without news from Herve
[47°09′54″S, 126°43′16″W] Dosimeter still failing
Analog Discovery Pro ADP2230: New Mixed Signal Oscilloscope from Digilent
The Analog Discovery Pro ADP2230 is a mixed signal oscilloscope designed for a range of professional engineering applications. It integrates multiple functions typically found in various test and measurement devices into a single unit. Key components and capabilities include: For digital signal processing, the device includes 16 digital input/output channels, compatible with 3.3 V CMOS […] ⌘ Read more
SolidRun’s First x86-based COM Express 7 Module Taps Ryzen V3000 Embedded V3C48 Processor
SolidRun’s latest Ryzen V3000 CX7 COM Module, with an 8-core/16-thread Ryzen Embedded V3C48 Processor and AMD’s 6nm ‘Zen3’ architecture, marks their entry into x86-based COM Express 7 modules, combining high performance and energy efficiency. The Ryzen V3000 CX7 COM Module from SolidRun features powerful AMD Ryzen processors (V3C18I, V3C48, or optional R7000 7840HS a … ⌘ Read more
[47°09′08″S, 126°43′16″W] Wind speed: 66kph – batteries low
Tesla’s canceled order cost a Black-owned bakery $16,000
The Giving Pies owner Voahangy Rasetarinera wrote on Instagram that Tesla approached her bakery on Feb. 14 with an order of 2,000 mini pies to be delivered the following week. ⌘ Read more
Sheriff: 13 arrested in ‘high profile case’
Seminole County Sheriff Dennis Lemma announced 13 arrests in a “high profile case” from January 16, 2023. One person was killed and five were injured in the deadly shooting after a Jackboy concert at The Barn in Sanford. ⌘ Read more
Romeo Beckham confirms split from model girlfriend Mia Regan
The 21-year-old, who plays soccer for English Premier League team Brentford’s B team, had been dating the model since they were both 16, but both announced their split on Sunday. Romeo wrote on Instagram “Mooch (Mia’s nickname) and I have parted ways after 5 years of love, we still have a lot of respect for each other, and still hold a strong friendship and always will.”. … ⌘ Read more
Presentation at Sundsgymnasiet school
I was invited by Mats, a teacher at the Sundsgymnasiet school in
Vellinge, to give a talk to his students, all three years of the
Technical Programme. Sundsgymnasiet is an upper secondary school,
probably what in the US would be called senior highschool, with
students normally starting in the year they turn 16 and finishing
at 19.
I didn’t know what to expect, really. Mats told me I could talk about
whatever I wanted, so of course I talked about … ⌘ Read more
On my blog: Toots 🦣 from 02/12 to 02/16 https://john.colagioia.net/blog/2024/02/16/week.html #linkdump #mastodon #socialmedia #week
[47°09′16″S, 126°43′32″W] Wind speed: 89kph – batteries low
How to Collaborate on Playlists with Spotify
Spotify is a fantastic music streaming platform that is widely used by many people around the world. Collaborating on music playlists with friends, family, coworkers, and loved ones, is a fun feature that is included with Spotify. But, like so many features of apps and operating systems these days that are hidden behind things that … Read More ⌘ Read more
Une extension galopante du domaine de la censure
La Macronie panique et l’extrême-centre, devenant totalitaire, a visiblement les mains moites. Cette semaine, ils ont mis les bouchées doubles pour enfin faire taire la dissidence. Il était temps : un peu plus, et les gens allaient s’exprimer librement ! D’un côté, l’Assemblée a voté mercredi la nouvelle loi de lutte contre les sectes et, notamment, son […] ⌘ Read more
[47°09′48″S, 126°43′16″W] Reading: 1.96000 PPM
[47°09′02″S, 126°43′00″W] Reading: 0.16 Sv
[47°09′04″S, 126°43′16″W] Resetting transponder