macOS .zshrc boilerplate (essential with current git branch)

.zshrc

#!/bin/zsh

export EDITOR="nvim"
export VISUAL="nvim"

export ZDOTDIR="$XDG_CONFIG_HOME/zsh"

export HISTFILE="$ZDOTDIR/.zhistory"    # History filepath
export HISTSIZE=10000                   # Maximum events for internal history
export SAVEHIST=10000

autoload -U promptinit
promptinit
# prompt bart # red yellow magenta

autoload -Uz compinit; compinit

# - # - # - # - # - # - # - # - # - # - # - # - # 
## https://git-scm.com/book/en/v2/Appendix-A%3A-Git-in-Other-Environments-Git-in-Zsh
autoload -Uz vcs_info
precmd_vcs_info() { vcs_info }
precmd_functions+=( precmd_vcs_info )
setopt prompt_subst
RPROMPT=\$vcs_info_msg_0_
# PROMPT=\$vcs_info_msg_0_'%# '
zstyle ':vcs_info:git:*' formats '%b'
# - # - # - # - # - # - # - # - # - # - # - # - # 

autoload -U colors && colors1 ## load colors definitions

## how this prompt was built (mini tutorial)
## PROMPT="[%n] " ## show username
## PROMPT="[%n]%~ " ## add the path relative to ~
## PROMPT="[%n]%~ %% " ## add '%'
## PROMPT="[%n]%~ %B%%%b " ## add bold to '%'
PROMPT="%{%F{cyan}%}[%n]%~%{%f%} %B%%%b " ## add colors (reset with %{%f%})
PROMPT="%{%F{cyan}%}%n]%~%{%f%} %B%%%b " ## got rid of a '[' because.

export PATH="/usr/local/sbin:$PATH"

Tested in macOS Catalina