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 »

Effective Java, 3rd Edition [Book]

Posted by jpluimers on 2026/06/04

Hopefully by now a 4th edition is available: [Wayback/Archive] Effective Java, 3rd Edition [Book].

Since I do not program in Java often, the above book is indispensable.

Read this review why as he much better phrases the reasons than I can: [Wayback/Archive] Effective Java by Joshua Bloch — A Must Read Book for Java Developers | by javinpaul | Javarevisited | Medium.

For Java versions 9 and up, read his recommendations here: [Wayback/Archive] Top 7 Courses to Learn New Features of Java 8 to Java 17 in 2023 | by javinpaul | Javarevisited | Medium.

Query: [Wayback/Archive] effective java – Google Search

Buy: [Wayback/Archive] Effective Java : Bloch, Joshua: Amazon.de: Books

–jeroen

Posted in Development, Java, Java Platform, Software Development | Leave a Comment »

Show HN: Live-updating version of the ‘What a week, huh?’ meme | Hacker News

Posted by jpluimers on 2026/06/03

[Wayback/Archive] Show HN: Live-updating version of the ‘What a week, huh?’ meme | Hacker News

As a fun evening project, I made a live-updating version of the ‘What a week, huh?’ meme (based on a panel from The Adventures of Tintin comics [1]).

There’s a page for every timeframe:

Current time is determined by a Cloudflare Worker using the request IP (not logged or stored). No JavaScript is sent to the browser.
[1] https://knowyourmeme.com/memes/what-a-week-huh

It was easy to edit the HTML to change the message and CSS for the text dimensions, see the image on the right.

MacOS users will likely recognise the font as it is the Marker Felt font which is included by default on MacOS.

And it would be cool to alter the speech bubbles to be more like the ones Hergé used, see this comment:

Read the rest of this entry »

Posted in CSS, Development, Fun, HTML, Meme, Power User, Software Development, Web Development | Leave a Comment »

Osmo-fl2k – osmo-fl2k – Open Source Mobile Communications

Posted by jpluimers on 2026/06/03

Interesting, but be aware that using it outside a shielded environment likekly is illegal: [Wayback/Archive] Osmo-fl2k – osmo-fl2k – Open Source Mobile Communications

  • osmo-fl2k allows to use USB 3.0 to VGA adapters based on the Fresco Logic FL2000 chip, which are available for around $5, as general purpose DACs and SDR transmitter generating a continuous stream of samples by avoiding the HSYNC and VSYNC blanking intervals.

  • Operating a transmitter with the unfiltered FL2000 DAC output attached to an antenna outside a RF shielding chamber is dangerous. Don’t do it!

Related/via

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Posted in Development, Hardware Development, Infosec (Information Security), Pen Testing, Power User, Red team, Security | Leave a Comment »

MeshCore – Off grid mesh radio communications system

Posted by jpluimers on 2026/06/02

In a world where it becomes increasingly important to think and act on situations where for various communication via traditional means is not that easy any more, then LoRa (Long Range) wireless networks have been steadily gaining ground: they use open frequencies and for some of these networks, their repeater structure is largely ran by communities of volunteers.

Both communities and devices have evolved so far that its not just for early adopters any more: mere mortals can use it too.

In the LoRa area, MeshCore looks to have become the successor of Meshtastic:  [Wayback/Archive] MeshCore – Off grid mesh radio communications system.

The core difference between these two LoRa networks is explained in the Wikipedia article on MeshCore:

MeshCore is often compared with other LoRa-based mesh networking systems such as Meshtastic. While Meshtastic primarily relies on broadcast-style message flooding, MeshCore emphasizes structured routing roles and store-and-forward mechanisms, resulting in different scalability and energy-consumption characteristics.

Communication over the MeshCore network reminds me a lot of three things, in this chronological order:

I think about everything of MeshCore is open source; mostly hosted in the hierarchy at [Wayback/Archive] MeshCore · GitHub.

MeshCore is fairly young which means it will have growth pains, and some hardware pains (like a node being limited to about 500 messages/hour because of physical bandwidth limitations – smaller cells work better than the FidoNet hub/spoke model – see the Dutch section below) but it also cool to see it evolving.

This blog post is going to be long, as a lot of MeshCore information is spread around the interwebz, so there is a lot to link to.

Read the rest of this entry »

Posted in Development, Hardware, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User, Python, Scripting, Software Development, Solar Power | Tagged: , , , , , , , , , , , , , | Leave a Comment »

Gist and GitHub comment images do contain your GitHub user ID

Posted by jpluimers on 2026/06/02

For people like me that use Gist or GitHub comments as a image hosting service like Imgur or the the now defunct ImageShack.

In due time (parts of) GitHub might become unavailable too, but since they diversified, I think the chance is lower. This is great because the list of List of image-sharing websites is not really growing but the subset of Defunct photo-sharing websites is.

You have to remember that unlike for instance Imgur, which can be used anonymously, the URL of pictures that are added to Gists or GitHub comments are bound to your GitHub user id.

So for instance [Wayback/Archive] 232005837-5d3c45d8-4efe-4759-a968-4ce276e35a35.png (899×503) contains the ID 2033367 which us the user ID of jpluimers.

Queries and results

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Posted in Development, gist, GitHub, Power User, Software Development, Source Code Management | Leave a Comment »

Pentagon shaped AMERICAN DICTATOR? Board Game – E-UP Games

Posted by jpluimers on 2026/06/01

AMERICAN DICTATOR? Board GameGet it while supplies last, as this Pentagon shaped board game of which parts of the proceeds to to charity is both too much a parody  and even better resonates with the original “The Landlord’s Game”  (that evolved into Monopoly) to let go:

[Wayback/Archive] AMERICAN DICTATOR? Board Game – E-UP Games

That page does not mention the proceeds, but their home page does, see [Wayback/Archive] Making Board Games Great Again! – E-UP Games

We are a Canadian family-owned company.

Our games are dreamed up, illustrated, play-tested, and brought to life by teenagers who love board games!

A portion of each purchase goes to charity.

THANK YOU FOR YOUR ATTENTION!

For more on the history – Elizabeth Magie was heavily anti-capitalist –  read these:

Via:

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Posted in LifeHacker, Power User | Leave a Comment »

Elektronik-Idee – CP740BMW – USB wireless MP3 Player (with Bluetooth and Audio/Video in support)

Posted by jpluimers on 2026/06/01

Cool: MOST bus based [Wayback/Archive] Elektronik-Idee – CP740BMW – USB wireless MP3 Player for various BMW models which also does Bluetooth, and Audio/Video in (English link: [Wayback/Archive] Elektronik-Idee – CP740BMW – USB wireless MP3 Player). Via:

Manuals Read the rest of this entry »

Posted in Audio, Bluetooth, cars, E61 530xd touring, LifeHacker, Power User, Video | Leave a Comment »

Wat is de maximale huurverhoging voor een vrijesectorwoning in 2026? | Rijksoverheid.nl

Posted by jpluimers on 2026/05/30

Edit 20260601: Tagged “missed schedule” vanwege de WordPress.com missed schedule bug die sinds 2012 niet is opgelost (kennelijk kan WordPress wel iets met AI, maar een lijst met meer dan 100 geagendeerde blogposts is “too big” voor ze)

Origineel:

Voor in het huurdossier: [Wayback/Archive] Wat is de maximale huurverhoging voor een vrijesectorwoning in 2026? | Rijksoverheid.nl

In 2026 is de jaarlijkse huurverhoging voor vrijesectorwoningen maximaal 4,4%. Dit geldt ook voor ligplaatsen voor woonboten. De huurverhoging moet wel als afspraak in uw huurcontract staan.

--jeroen

Posted in LifeHacker, Missed Schedule, Power User, SocialMedia, WordPress | Leave a Comment »

Your presenter might not be dead, and a stupid USB cable with large plug needed to “Charge the Logitech Spotlight presentation remote”

Posted by jpluimers on 2026/05/29

A follow-up on my previous post on Logitech presenters: Logitech remotes for presenting

Did my Logitech Spotlight die, or did the charging cable die?

I had not presented for a couple of years because of my cancer. So I tried to recharged my hardly used Logitech Spotlight presenter. No light would turn on. I thought it was the USB cable being broken.

[Wayback/Archive] Logitech Spotlight presentation remote LED status indicator

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Posted in Hardware, KVM keyboard/video/mouse, LifeHacker, Power User | Leave a Comment »

ChatGPT is a language model, which means it does not understand you and you can circumvent the gates added by humans

Posted by jpluimers on 2026/05/29

“Tricking” ChatGPT to give you information is about navigating around the gates added by humans: [Wayback/Archive] Gokul Rajaram on Twitter: “lol”:

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Posted in AI and ML; Artificial Intelligence & Machine Learning, ChatGPT, Development, GPT-3, LifeHacker, Power User, Software Development | Leave a Comment »