Mostly for myself when setting up macOS. Make daily programming activity more productive.

Allow me to introduce a site before The main dish:

Original Macintosh - Anecdotes about the development of Apple’s original Macintosh, and the people behind it.

Symbol for keys:

Command (or Cmd) ⌘
Shift ⇧
Option (or Alt) ⌥
Control (or Ctrl) ⌃
Caps Lock ⇪

⌥+⇧+] for typing (instead of normal ').

Faster key response

I really cannot live without this.

defaults write -g KeyRepeat -int 2
defaults write -g InitialKeyRepeat -int 12

lower numbers are faster:

KeyRepeat: 120, 90, 60, 30, 12, 6, 2
InitialKeyRepeat: 120, 94, 68, 35, 25, 15

Sudo with Touch ID

Add this line to /etc/pam.d/sudo:

auth       sufficient

Fixing AirPods issue

This may help

killall coreaudio

Restart your computer or repair (Bluetooth).

Enable Audio Codec

For better headlphone performance.

sudo defaults write bluetoothaudiod "Enable AptX codec" -bool true
sudo defaults write bluetoothaudiod "Enable AAC codec" -bool true

On Paste

System Preferences > Keyboard > App Shortcuts > All Applications

add "Paste and Match Style" ⌘V
add "Paste" ⌘V


Turn off preview thumbnail when taking Screenshot

⌘+⇧+5, options, turn off thumbnail.

Search in current folder

Show Hidden files

defaults write AppleShowAllFiles YES

Open App from 3rd-party developer

defaults write /Library/Preferences/ GKAutoRearm -bool NO


Turned on Expanded Control Strip & Remove Siri.

See this post.

Restart Touchbar

pkill "Touch Bar agent";
killall "ControlStrip";

Sign PDF by Preview

Fill out and sign PDF forms in Preview on Mac.


⌃ + ⌘ + space to pull up emoji selection menu.

Orta’s Keyboard Shortcuts and Apple’s official guide.

Git & GitHub

Install GitHub‘s CLI (gh).

Change Your Name to yours.
Change to yours.

git config --global "Your Name"
git config --global ""
git config --global checkout
git config --global branch
git config --global alias.lp local-push
git config --global color.ui true
git config --global url."".insteadOf ""
git config --global core.editor "subl -w"
git config --global core.excludesfile ~/.gitignore_global
git config --global diff.noprefix true
git config --global hub.protocol https

prefer git url

Add SSH key on GitHub

Change to yours.

ssh-keygen -t rsa -b 4096 -C ""
eval "$(ssh-agent -s)"
ssh-add -K ~/.ssh/id_rsa
pbcopy < ~/.ssh/


See /use

Visual Studio Code

⇧+⌘+P > Shell install code to PATH doc
Install Night Owl theme.

Sublime Text 3

ln -s "/Applications/Sublime" /usr/local/bin/sublime

Oceanic Next Color Scheme with Oxygen Mono font.

VS Code Theme

Open file by editor on iTerm2

Zip sharing

$ zip -e file
Enter password:
Verify password:

Switch Keyboard Input Source


US keyboard setting to quickly switch to Japanese

Download Karabiner Elements, import rules for Japanese, then enable:

Search history for any readline based program

# ~/.inputrc
set show-all-if-ambiguous on
set completion-ignore-case on
set input-meta on
set output-meta on
set convert-meta off

"\e[5~": history-search-backward # fn + up
"\e[6~": history-search-forward # fn + down

Change computer & host name

Convert mov to mp4

ffmpeg -i -vcodec libx264 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p -strict experimental -r 30 -t 2:20 -acodec aac -vb 1024k -minrate 1024k -maxrate 1024k -bufsize 1024k -ar 44100 -ac 2 out.mp4

Stop saving passwords to Browsers

Turn off the built-in password manager in your browser


MacBook Pro 16" 2019

kernel panic issues...