Let me explain quickly my problems and how I finally fixed it.
A short guide about installing the Powerlevel9k theme for ZSH on my MBP.
Display hidden files (dotfiles) in Finder. Quickly toggle with the newly added key combination.
My personal preferenced style of an attribution line in an email program.
Let me not forget those steps needed to write a dmg file to a SD-card with dd.
Mount ISO or RAW disk images on macOS with hdiutil.
This lets you basically run a command via cron on every first saturday in a month.
This is the way I compiled tin the last time on my Mac.
Burns an ISO image to a CD-ROM or DVD-ROM. This might also be available in Finder itself, but I think the command line version is a tick faster.
Show hidden files (dot-files) in Finder. A command for your terminal.
Replace filename suffices of all files in a directory.
How to disable the dashboard on Apple macOS in a terminal.