My elementary os init script, includes some web development tools, basic configuration, a cute theme and so on...

elementaryos.sh

#!/bin/bash

# First programs
echo 'Updating and upgrading programs...'
apt update -y && apt upgrade -y
echo 'Updating and upgrading finished...'

echo 'Installing first basic programs...'
apt install git snapd nodejs npm mongodb build-essential software-properties-common -y

echo 'Installing vimix...'
apt install gtk2-engines-murrine gtk2-engines-pixbuf -y

git clone https://github.com/vinceliuice/vimix-gtk-themes.git

chmod u+x ./vimix-gtk-themes/Install
./vimix-gtk-themes/Install
echo 'Vimix installation finished'

echo 'Installing elementary tweaks...'
# https://askubuntu.com/a/651045
yes '' | add-apt-repository ppa:philip.scott/elementary-tweaks
apt install elementary-tweaks -y

echo 'Elementary tweaks installation finished'

echo 'Installing papirus icons...'

yes '' | add-apt-repository ppa:papirus/papirus
apt install papirus-icon-theme -y

echo 'Papirus icons installation finished'

echo 'Installing snapcraft apps...'

snap install code --classic
snap install skype --classic
snap install insomnia
snap install postbird

echo 'snapcraft app intallations finished'