macOS: from High Sierra to Mojave

Steps:

• Update Clover through Clover Configurator: pick custom install and check
  • AptioMemoryFix-64,
  • ApfsDriverLoader-64 and
  • PartitionDxe-64
• Remove apfs.efi from /Volumes/EFI/EFI/drivers64UEFI: not needed anymore with above Clover options 
• Update kexts in /Volumes/EFI/EFI/CLOVER/kexts/Other
• AppleALC.kext 
• Lilu.kext 
• Replace IntelGraphicsFixup.kext with WhateverGreen
• FakeSMC.kext
• IntelMausiEthernet.kext 

• Download "Install macOS Mojave" application from the Mac App Store, and run it.
• Reboot. At Clover boot screen, choose Boot macOS Install option. Multiple reboots expected. At some time, pick "Boot FileVault Prebooter from Preboot" option to finish the install.
• Update Clover configuration in order to hide the 2 preboot options at boot time. For this, add "Preboot" in Clover Configurator | Gui | Hide Volume
  
• And here it is.
  
• Optional step: Create a Bootable USB with UniBeast

macOS: downloading .gz from Chrome turns into .cpgz

If you download a .gz from Chrome, and double-clicking it simply creates a .cpgz, then the downloaded file is not a .gz
Try

> file --mime-type ~/Desktop/42a3-909a-1b5bdb4a4b8b.gz
text/plain

Then simply rename it into .txt, and you will be able to open it.

macOS: turn text into links automatically

Use Edit > Substitutions > Smart Links

macOS: how to page up with byobu in Terminal.app

Source: How can I page up or down in tmux with Terminal.app?
Terminal.app captures PageUp / PageDown. So, in order to send them to byobu again:
If on a PC keyboard:

• F7
• Shift + PageUp / Shift + PageDown

Or if on a MacBookPro:

• F7
• Fn + Shift + Up / Fn + Shift + Down

Perl: certificate verify failed

Source: WWW::Mechanize SSL connect attempt failed for https get
TL;DR

cpan update Mozilla::CA

git: merge files from another branch

Source: Git tip: How to "merge" specific files from another branch

git checkout [TARGET_BRANCH]
git checkout [SOURCE_BRANCH] my_file1 my_file2