The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Having cancer is not a fight or a battle, it is about having luck or misfortune

Posted by jpluimers on 2021/12/10

It has been a while after my last post about me having cancer. No, I am not giving up. But I am having the regular fear of the upcoming checks: did the metastases return, or do I have the luck to outlive some 30% of my peer group.

The last metastases surgery has been slightly more than a year ago. A year from now, that percentage hopefully will be 50% and slowly increase over time until about 90% in some 9 years from now.

At year’s end, I will know for sure.

Below are some links on, mostly Dutch but with English abstract, articles about the mental side of having cancer, or having survived it for now.

Read the rest of this entry »

Posted in About, Cancer, LifeHacker, Personal, Power User, Rectum cancer | Leave a Comment »

Why are the Units for Thermal Conductivity W/mK?

Posted by jpluimers on 2026/08/21

Related to Thermal conductivity – Wikipedia and List of thermal conductivities – Wikipedia is [Wayback/Archive] Why are the Units for Thermal Conductivity W/mK?

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Posted in LifeHacker, Mathematics, Physics, Power User, science | Leave a Comment »

Andrea on Twitter: Your Swimsuit Colour Matters in the Water

Posted by jpluimers on 2026/08/21

The colour of safety gear at sea is no accident: [Wayback/Archive] Andrea on Twitter:

Your Swimsuit Color Matters in the Water

which Google Lens [Wayback/Archive] thinks originates from [Wayback/Archive] The safest swimsuit colors underwater for kids to wear – Reviewed.

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Posted in LifeHacker, Power User | Leave a Comment »

Open source meme generators on GitHub

Posted by jpluimers on 2026/08/20

I knew open source meme generators would exist, but I never searched for them before. Here is a small table with generator and repository columns:

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Posted in *nix, *nix-tools, ash/dash, bash, bash, Batch-Files, Bookmarklet, CSS, Development, HTML, JavaScript/ECMAScript, Makefile, Power User, Python, Scripting, sh, Sh Shell, Software Development, Web Browsers, Web Development | Leave a Comment »

Bookmarklets for going from the Wayback Machine to Archive Today

Posted by jpluimers on 2026/08/20

To ease my blogging, I wrote two more Bookmarklets that help me navigate to or save from a Wayback machine archived page to Archive Today.

A key thing I learned over the past 2+ decades is that “the cloud” (i.e. cloud computing) is “just someone else’s computer” which tends to be unavailable right when you need it no matter the applicable service-level agreement.

Which means that a long while ago, I switched to archiving external links to both the Wayback machine and Archive Today.

Since the Wayback machine is my primary, it helps to have Bookmarklets to go from such an archived page to the equivalent one on Archive Today, or even save it if it isn’t there.

So I made two more Bookmarklets which I will illustrate using the example.org based links https://example.org and http://example.org:

Read the rest of this entry »

Posted in archive.is / archive.today, Bookmarklet, Conference Topics, Conferences, Development, Event, Internet, InternetArchive, JavaScript/ECMAScript, Power User, Scripting, SocialMedia, Software Development, WayBack machine, Web Browsers, Web Development, WordPress | Leave a Comment »

Fixed my Windows Update Error 0x800705b9 on Windows 11 25H2: Reset Windows Update Components batch files

Posted by jpluimers on 2026/08/19

I created the gist [Wayback/Archive] Fixed my Windows Update Error 0x800705b9 on Windows 11 25H2: Reset Windows Update Components batch files from https://kimiyoya.com/windows-update-error-0x800705b9-fix-en/ and https://www.elevenforum.com/t/reset-windows-update-in-windows-11.3808/ · GitHub

In it, the first batch file solved the Windows Update Error 0x800705b9 I had on a Windows 11 25H2 machine, probably with the root cause that the C: drive had become full during running updates.

Standard measures failed:

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Posted in Batch-Files, Development, Power User, Scripting, Software Development, Windows, Windows 11 | Leave a Comment »

Some LoRaWAN notes to decide buy or build?

Posted by jpluimers on 2026/08/19

A long time ago, I volunteered to participate in the first Dutch LoRaWAN initiative but somehow no more follow-up after the first initial 2015 email exchange.

Now that I have reached peak recovery of all my cancer treatments and LoRaWAN is far more available there is some room for experimentation.

Related blog post: Kerlink IoT station page | LoRa | Semtech

History:

So now some links in case I want to have my own LoRaWAN gateway:

  1. [Wayback/A] Jilles Groenendijk on Twitter: “And we are Live, second LoraWan gateway in Hellevoetsluis. This was the easiest setup of Hardware I have ever seen. Nerds get one, it is affordable, mod-able and you’ll extend the network! NL link: antratek.nl/the-things-indoor-gateway“

    [Wayback/Archive] The Things Indoor LoRaWAN Gateway, TTIG-868 – Antratek Electronics

  2. [Wayback/Archive] Jilles Groenendijk on Twitter: “Supposed to receive my TTIG today. Need to void the warranty though. #TheThingsNetwork #LoraWan”
    1. [Wayback/Archive] Hacking the TTI Indoor Gateway – Tinkerman
      • DIY Schuko plug for the TTI Indoor Gateway
      • Adding an external antenna, is it worth it?
      • Peaking into the firmware
      • Final touch: originates with TrackNet
      • How to enable the CP2102N on the TTIG
    2. [Wayback/Archive] The Things indoor gateway EU power plug by Rdfo – Thingiverse
    3. [Wayback/Archive] TTN Indoor Gateway – Stand, Rod- and Wallmount by LittleJoeMuc – Thingiverse
    4. [Wayback/Archive] TTIG_POWER
    5. [Wayback/Archive] The Things Network by Wienke Giezeman — Kickstarter
    6. [Wayback/Archive] The Things Indoor Gateway | The Things Network
    7. [Wayback/Archive] www.iot-shop.de The Things Indoor LoRaWAN Indoor Gateway TTNv3 Enabled for Installing LoRaWAN Networks: Amazon.de: Computer & Accessories
  3. [Wayback/Archive] Jilles Groenendijk on Twitter: “Ladies and Gentlemen, we’ve got him!”

    Image

–jeroen

Posted in Communications Development, Development, Hardware, Hardware Development, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User | Leave a Comment »

The pitch deck is dead. Write a pitch.md instead. Oh, and do this for any presentation you need to give.

Posted by jpluimers on 2026/08/18

I have been doing presentations based on Markdown since, gosh let me look, oh, at least 2014¹!

But I’m glad it is getting traction: [Wayback/Archive] The pitch deck is dead. Write a pitch.md instead.

… the “quality” of the deck is inversely correlated with the quality of the thinking behind it …

The quote hits the nail on the head, but be sure to read the rest of the article as well: it’s inspiring, holds for way more than pitch decks: it holds for any presentation, especially because of this quote²:

William Zinsser argued in On Writing Well that the act of writing forces clarity – because you can’t write a clear sentence about a thing you don’t understand.

Markdown has so many advantages. You write. It is text based. It can be versioned. I could go on.

Let me quote the closing summary too, as it is so well written showing the advantages of writing:

Write the pitch.md first. You might find you don’t need the deck at all, or you might find that when you do build the deck, it’s better, because you finally know what you’re trying to say.

Via:

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Posted in Development, Documentation Development, Lightweight markup language, MarkDown, Software Development | Leave a Comment »

No more /etc/rc.local in ESXi 7 and up, use /etc/rc.local.d/local.sh in stead

Posted by jpluimers on 2026/08/18

Where in ESXi 6.x you could change /etc/rc.local in ESXi 7 and up tightened security and now use /etc/rc.local.d/local.sh [Wayback/Archive] virtualization – ESXi 7.X file permissions – how to buypass new security measures – Server Fault

Notes:

  • some ESXi (for instance when booting from PXE do not have persistent storage)
  • be sure to always backup an ESXi configuration after changing it

Via [Wayback/Archive] “esxi 7” run your own shell scripts – Google Search

–jeroen

Posted in ash/dash development, Development, ESXi6, ESXi6.5, ESXi6.7, ESXi7, ESXi8, Scripting, Software Development, Virtualization, VMware, VMware ESXi | Leave a Comment »

Tabellen met plugmaat en schroefmaat

Posted by jpluimers on 2026/08/17

Deze tabellen waren nuttig voor me, want ik dacht dat voor 7mm schroeven 8mm pluggen nodig waren:

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Posted in DIY, LifeHacker, Power User | Leave a Comment »

3D printer: Jeff Geerling on Twitter: “If you want to spend a month building it and then the rest of your life telling everyone about it, get a Voron. If you want something quick to assemble and practical, get an Ender 3 S1. If you want the nice coffee-sippingest model that looks good in orange, get a Prusa.”

Posted by jpluimers on 2026/08/17

I wonder if this still holds: [Wayback/Archive] Jeff Geerling on Twitter: “@NetworkChuck @joeltelling @Barnacules If you want to spend a month building it and then the rest of your life telling everyone about it, get a Voron. If you want something quick to anssemble and practical, get an Ender 3 S1. If you want the nice coffee-sippingest model that looks good in orange, get a Prusa.”

–jeroen

Posted in 3D printing, Power User | Leave a Comment »

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