Other articles

1. Mania 1 - Make PCBs at home

   For some reason I have several traumas stuck with me from childhood. They evolved into periodically appearing activites searching for solutions for problems that are already solved. I could fight them and make myself understand that my time is not worth spending with them, but they keep coming up. They …

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2. Running .JNLP on ARCH linux

   sudo pacman -S jre8-openjdk icedtea-web
   sudo archlinux-java status
   sudo archlinux-java set java-8-openjdk/jre
   java -version
   javaws something.jnlp
   

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3. Adding IKEA VALLHORN to my home automation regimen (Zigbee2mqtt)

   Looks like this is supported by Zigbee2MQTT: https://www.zigbee2mqtt.io/devices/E2134.html

   Back in the days I had to amend /etc/zigbee2mqtt/configuration.yaml, but looks like the new mode is somewhat different, I need to publish a message:

   I first started to watch the logs:

   # journalctl -f …

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4. Updating Home Server

   Wuff, that was a long time ago. Let me see how I can log in to that machine at all.

   $ ssh homer
   

   That worked, but I need to be superuser as well.

   [matelakat@homer ~]$ sudo -i
   

   Ok, worked like a charm. Let me see what VMs are running on it …

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5. Install error when updating kernel

   So I want to update my machines. And I was using ansible to do it with the yay module. Then I was unable to boot up my machine.

   The truth to be told I have a bit of esoteric configuration, because I am mounting my efi root under the /efiroot …

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6. Make systemd-boot remember previous selection

   Just a note for myself:

   $ cat /efiroot/loader/loader.conf 
   timeout 10
   console-mode keep
   default @saved
   

   You are looking for the line default @saved

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7. Home Server from a laptop - homer

   I recently acquired a Lenovo L470 laptop for cheap, and I will be using it as a hypervisor to run my home automation VM on it.

   Basically the benefit is that it consumes low power, has a built-in UPS, a built-in keyboard and screen.

   First, I create a USB drive …

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8. Sous Vide Pork Shoulder Chops

   I am cooking pork shoulder the second time. Previously I cooked it in one piece then chilled and cut it to slices, based on this video. He said

   • Use collar cut
   • 0.5% salt per mass
   • 16...48 hours
   • 60 degrees celsius

   Now wife brought me some chops, quite thin …

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9. Zigbee to MQTT evaluation - Step 2

   My attempt to actually control anything with my setup. Actually a lamp. So what I had is exactly this lamp: SmartWise Lamp and the seller was claiming that it is compatible with zigbee2mqtt.

   So I enabled my z2m to allow parties to join by setting permit_join to true.

   Then turned …

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10. First Post Using Pelican

    This is my attempt of an Article with Pelican. You can call it a blog. Basically, I had to configure pelican as follows:

    ARTICLE_PATHS = ('articles',)
    

    Then created a file under content/articles/first-post.md with the content:

    Title: First Post
    Date: 2024-11-01
    
    ... What you read went here
    

    And that is …

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11. Virsh not listing me domains

    I used this: virsh list and then virsh list --all, but none of the vms defined in my virt-manager are visible.

    When running it with sudo it worked, but who wants to do that?

    Then I found this link that solved my pain. Making a note here for myself as …

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12. Zigbee to MQTT evaluation - Step 1

    Today is the day when I get to try Zigbee2MQTT project. The goal is to be able to push a button and being able to print something at the terminal as a response.

    I bought the following hardware:

    • SMLIGHT SLZB-06 as zigbee coordinator
    • SONOFF SNZB-01P as a switch

    First I …

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