📝 Documented my KDE development environment setup

coding/kde_dev-environment-setup.md

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+## Set-up of a VM with openSUSE tumbleweed for KDE development
+
+#### Step 1: Installation of KVM on debian
+I picked the GUI version:
+```
+sudo apt install virt-manager qemu-system libvirt-daemon-system qemu-utils
+sudo usermod -aG libvirt,kvm <user>
+sudo systemctl enable --now libvirtd
+
+```
+
+#### Step 2: set-up the openSUSE tumbleweed iso 
+1. Download tumbleweed [here](https://get.opensuse.org/tumbleweed/)
+2. start `virt-manager`
+3. select `QEMU/KVM`
+4. create new vm (pay attention to vm directory, RAM size, number of CPU cores and space (although the default 20GB should suffice))
+5. ! warning ! I've ran into an issue that my vm suspended itself when I tabbed out before I started the installation process which caused the vm to crash to a point where it couldn't start the installation screen anymore. I am not sure whether that issue would have also come up if I would have tabbed out of the running installation process because I did not dare to. Caution advised.
+
+#### Step 3: Getting everything inside the vm set-up
+##### zsh
+* for some (to me) unknown reason, `chsh -s /usr/bin/zsh` did not work. workaround: creating a new profile in Konsole and assigning zsh to it.
+* typical zsh set-up. first downloading my `.zshrc`, then installing antigen into `$HOME/.antigen/antigen.zsh`
+##### packages
+* git is not pre-installed. Time to get to know `zypper`! It's just a package manager, nothing scary.
+* mia-provided way of getting kde development libs and packages onto my system:
+    1. `sudo zypper ar -fr https://download.opensuse.org/repositories/KDE:/Unstable:/Frameworks/openSUSE_Factory/KDE:Unstable:Frameworks.repo`
+    2. `sudo zypper ar -fr https://download.opensuse.org/repositories/KDE:/Unstable:/Applications/KDE_Unstable_Frameworks_openSUSE_Factory/KDE:Unstable:Applications.repo`
+    3. `sudo zypper in -t pattern devel_kde_frameworks`
+
+#### Step 4: Configuration
+##### git
+*   `git config --global user.name "firstname lastname"`
+    `git config --global user.email "needs to be the same email as registered on bugs.kde.org"`