Repository for Linux packages

You can use the APT::Update::Pre-Invoke feature in apt.conf to instruct apt to check for an updated Zoom .deb file and fetch it if needed.

To enable this approach, copy paste the code below into a file and run it once. The code will

• Create a new /usr/local/zoom-deb-files directory to contain the Zoom .deb file and the APT repo files (Packages and Release)
• Create the new /etc/apt/apt.conf.d/99update_zoom file. This file instructs apt to check for a newer file hosted on Zoom's CDN, each time you run apt update, and if one is present, download it and rebuild the local APT repo.
• Create the /etc/apt/sources.list.d/local-zoom.list file to instruct apt to use this new local APT repo

#!/usr/bin/env bash

# Based on https://askubuntu.com/a/1316231/14601

url=https://zoom.us/client/latest/zoom_amd64.deb
debdir=/usr/local/zoom-deb-files
aptconf=/etc/apt/apt.conf.d/99update_zoom
sourcelist=/etc/apt/sources.list.d/local-zoom.list

sudo mkdir -p $debdir
# --timestamping only fetches the file if the last-modified HTTP header in the
#   response is newer than the last modified time of the local file
# --no-if-modified-since tells wget to send a HEAD request to determine if
#   there's a new file or not before sending a GET request
# The grep prevents running apt-ftparchive if no new file was downloaded
echo 'APT::Update::Pre-Invoke ' \
'{"cd '$debdir' ' \
'&& wget --timestamping --no-if-modified-since '$url' 2>&1 ' \
'| ( grep --quiet ' "'Server file no newer than local file'" ' && exit 1 || exit 0 ) ' \
'&& apt-ftparchive packages . > Packages ' \
'&& apt-ftparchive release . > Release ' \
'|| true";};' | sudo tee $aptconf
echo 'deb [trusted=yes lang=none] file:'$debdir' ./' | sudo tee $sourcelist

Once this is done, you can run this to install Zoom

sudo apt update
sudo apt install zoom