Installing my normally used devtools, media programs on Debian-based systems

InstallationEssentials.sh

# Add other repos, update package listings, upgrade OS if available
sudo add-apt-repository multiverse
sudo add-apt-repository ppa:obsproject/obs-studio
sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo add-apt-repository ppa:ubuntuhandbook1/audacity
sudo add-apt-repository ppa:qbittorrent-team/qbittorrent-stable
curl -sL https://deb.nodesource.com/setup_13.x | sudo -E bash -
curl https://build.opensuse.org/projects/home:manuelschneid3r/public_key | sudo apt-key add -
echo 'deb http://download.opensuse.org/repositories/home:/manuelschneid3r/xUbuntu_19.04/ /' | sudo tee /etc/apt/sources.list.d/home:manuelschneid3r.list
curl https://downloads.plex.tv/plex-keys/PlexSign.key | sudo apt-key add -
echo deb https://downloads.plex.tv/repo/deb public main | sudo tee /etc/apt/sources.list.d/plexmediaserver.list
sudo apt update - y
sudo apt upgrade -y
sudo apt dist-upgrade -y

# Grab snap for getting VSCode, Spotify (and possibly other future packages)
sudo apt install snapd
sudo snap install spotify
sudo snap install --classic code
sudo snap install --classic anbox-installer

# Terminal managers, productivity tools, SDKs, communications, media, tweaks, etc.
sudo apt install -y tilix tmux albert nodejs vim g++ make build-essentials discord spotify gimp obs-studio apt-transport-https plexmediaserver audacity steam vlc qbittorrent ubuntu-restricted-extras gnome-tweak-tool gnome-clocks cron-apt

# Install PIA
wget https://installers.privateinternetaccess.com/download/pia-v82-installer-linux.tar.gz
tar -xzf ./pia-v82-installer-linux.tar.gz
./pia-v82-installer-linux.sh
pia_configure_openvpn () {
  sudo apt install network-manager-openvpn-gnome
  wget https://www.privateinternetaccess.com/installer/pia-nm.sh
  sudo bash pia-nm.sh
}
# pia_configure_openvpn

# Configure Plex
### Attached file "Plex-UFW.conf" is entry for /etc/ufw/applications.d/plexmediaserver
configure_plex () {
  sudo apt install ufw
  sudo systemctl start plexmediaserver
  sudo ufw app update plexmediaserver
  sudo ufw allow plexmediaserver-all
  sudo ufw status verbose
  sudo mkdir -p /opt/plexmedia/{movies,series}
  sudo chown -R plex: /opt/plexmedia
}
# configure_plex

# "When stability is less important" configs
echo -e "apt update\napt upgrade -y\napt dist-upgrade -y\napt autoremove" >> DangerousAutoWeeklyUpdate.sh
sudo chmod 755 ./DangerousAutoWeeklyUpdate.sh
sudo mv DangerousAutoWeeklyUpdate.sh /etc/cron.weekly

# Cleanup 
sudo apt autoremove

Plex-UFW.conf

[plexmediaserver]
title=Plex Media Server (Standard)
description=The Plex Media Server
ports=32400/tcp|3005/tcp|5353/udp|8324/tcp|32410:32414/udp

[plexmediaserver-dlna]
title=Plex Media Server (DLNA)
description=The Plex Media Server (additional DLNA capability only)
ports=1900/udp|32469/tcp

[plexmediaserver-all]
title=Plex Media Server (Standard + DLNA)
description=The Plex Media Server (with additional DLNA capability)
ports=32400/tcp|3005/tcp|5353/udp|8324/tcp|32410:32414/udp|1900/udp|32469/tcp