Example `.bash_profile` file

.bash_profile

# Edit this file
alias aliases="nano ~/.bash_profile" # usage: type `aliases` in Terminal

# Navigate to location
alias home="cd ~"
alias desktop="cd ~/Desktop/"
alias repos="cd ~/Documents/Repos/"

# Navigate to project directory
alias ds="clear && cd ~/Documents/Repos/design-system"
alias docs="clear && cd ~/Documents/Repos/design-system-docs"

# MacOS System
alias showhiddenfiles="defaults write com.apple.finder AppleShowAllFiles YES" # requires Finder relaunch
alias hidehiddenfiles="defaults write com.apple.finder AppleShowAllFiles NO" # requires Finder relaunch

# Example exported environment variable
export SOME_SECRET_PASSWORD="password123!"

Good starter.

helpful it gave some insights to setup my development environment

if you type "cd" without arguments, it navigates into home directory