Category: Allgemein

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Pacman remove a package from the registry

Sometimes it happens that package maintainers are slow and you’ve deleted the installed files manually and replaced them with current files.
Example Android Studio (android-studio).
You tried to do a upgrade because it signaled there was a newer version available.

When a program has an self-upgrade feature you don’t really need a package manager anymore, right?

So in my case I have sudo rm -rf /opt/android-studio and downloaded the current files and extracted into /opt/android-studio. But it’s now 2 weeks later and I’m trying to upgrade my system and android-studio doesn’t want to install.

I’m removing the package from the pacman package registry or database and managing Android Studio upgrades manually from now on.

Solution

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DJ Mixing Software comparison

This is a work-in-progress post.

So far I have tried 3 DJ mixing software products.

TL;DR: VirtualDJ wins, but it’s not really free

Mixxx
Free Open Source
+ Can handle any file format
+ Has up to 4 turnables
– Very unintuitive UI, which makes it hard to build sets and analyze tracks for BPM and key values.

VirtualDJ
Free for personal use, but very restrictive licensing
+ Technically the best software so far
+ Can use ASIO for main and WSAPI for headphones
– Only 2 turnables by default (update: You can install additional skins to have 4 decks, but they’re ugly)
– Every time it starts, it wants you to sign in/create an account
– No way to create a set list?
– Subscription based

Serato DJ Lite
Requires an account to be created, no way of deleting that account manually.
– Wants to upsell you on pretty much everything, cloud offers, their Pro subscription and it’s constantly nagging about it
– No proper audio configuration possible
– Tiny waveform display
– Control missing

Serato DJ Lite has to be some kind of joke.

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Wasser nach Apfel nicht ok

Wasser zu trinken, nachdem man einen Apfel oder mehrere Äpfel gegessen hat ist, noch wie vor, nicht ok und führt im schlechtesten Fall zu Durchfall.

Man googlet ja oft verschiedene Dinge und AI, die Google und andere einsetzen, ist bekannt dafür zu lügen. Aber es ist nicht die AI, die in diesem Fall lügt, sondern verschiedene Suchtreffer, die auf der ersten Seite stehen.
Dort wird behauptet, dass sinngemäß das Wasser früher zu “Großmutters Zeiten” kontaminiert war und deshalb das trinken von Wasser nachdem man Obst, in diesem Fall Äpfel, gegessen hat als schlecht oder schädlich angesehen wurde.
Wasser, ist nach wie vor, Wasser und das trinken von Wasser nach Obst sollte erst ca. 30 Minuten nachdem man Obst gegessen hat erfolgen, sonst riskiert man bestenfalls Blähungen, schlimmstenfalls, wie bei Feigen, blutigen Durchfall oder Erbrechen.

KEIN WASSER NACH OBST ist nach wie vor ein guter Rat.

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2 machines with bridge devices and same mac problem

You’re using systemd, maybe you have cockpit installed and are creating a bridge on each host because you need them for libvirt virtual machines.

One machine is your old workstation and you copied the filesystem to the new machine.

But when you create a bridge you local machine suddenly receives the same IP your old machine has received.
Why?
You search around, “How do I set a new MAC address on a bridge?”
But none of the answers work.

Then you remember, “Hey, systemd uses machine-id for each machine”.
And indeed it does.

  1. You have to rm -f /etc/machine-id and dbus-uuidgen --ensure=/etc/machine-id
  2. Reboot the system
  3. Recrete the bridge

    4. -id

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How to run gitea securely with snapcraft’s gitea snap on CentOS/Rocky/Alma etc

Install gitea snap

Add user

systemctl edit snap.gitea.web.service

In app.ini

add firewall forward rule