How to install Synergy 2.0.12 beta on Ubuntu 20.04 (Focal Fossa) LTS

install-synergy2-focal.sh

#!/usr/bin/env bash
set -Eeuo pipefail

# Download the Synergy 2 beta installer for Ubuntu 16.04 to /tmp.

cd /tmp
sudo dpkg-deb -R synergy_2.0.12.beta_b1705+e5daaeda_amd64.deb synergy_2.0.12.beta
sudo mv synergy_2.0.12.beta/usr/lib/systemd/system/synergy.service synergy_2.0.12.beta/usr/lib/systemd/system/synergy.service.dpkg-new
# Renaming the desktop file might not be necessary.
sudo mv synergy_2.0.12.beta/usr/share/applications/synergy.desktop synergy_2.0.12.beta/usr/share/applications/synergy.desktop.dpkg-new
sudo dpkg-deb -b synergy_2.0.12.beta synergy_2.0.12.beta-ubuntu-20.04.deb
wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb
sudo dpkg -i libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb
sudo apt-get install ./synergy_2.0.12.beta-ubuntu-20.04.deb
synergy-config

The libssl1 package has changed from 5.3 to 5.4. When considering this it works great!

libssl1 changed to 5.5 now.

Running synergy-config prints an error in the console and I can't log in:

$ synergy-config 
"[ Config  ] " "[2021-01-14T08:45:39] debug: install dir: /usr/bin" 

"[ Config  ] " "[2021-01-14T08:45:39] info: log filename: /var/log/synergy/synergy-combined.log" 

QObject::startTimer: Timers cannot have negative intervals
"[ Config  ] " "[2021-01-14T08:45:39] warning: version check disabled, skipping" 

"[ Config  ] " "[2021-01-14T08:45:39] debug: connecting to background service" 

"[ Config  ] " "[2021-01-14T08:45:39] debug: connected to background service" 

"[ Config  ] " "[2021-01-14T08:45:39] debug: sending uid to service: 1000" 

"[ Config  ] " "[2021-01-14T08:45:39] debug: saying hello to background service" 

qrc:/ActivationPage.qml:65:21: QML Image: Binding loop detected for property "sourceSize.height"
"[ Config  ] " "[2021-01-14T08:45:39] warning: version check disabled, skipping" 

"" "[ Service ] [2021-01-14T08:45:39] debug: saying hello to config ui" 

"" "[ Service ] [2021-01-14T08:45:39] info: Tray process connected" 

"" "[ Service ] [2021-01-14T08:45:39] info: A tray process is already connected. Sending kill command." 

"[ Config  ] " "[2021-01-14T08:45:40] error: Reply status code: 0" 

"[ Config  ] " "[2021-01-14T08:45:40] error: failed to check update: reply has error: SSL handshake failed" 

^ Were you able to get that fixed? Same issue. @jpmeijers

I contacted Synergy support, as I paid for a license. They said Synergy2 is discontinued and that one should use Synergy1. They moved my v2 license to v1. So now I am using Synergy1.

Honestly, at this point I'm done with Synergy. They've taken an free/libre/open source software package closed source, and they've bungled it pretty badly. They aren't getting another penny from me.

so sad synergy used to be good back in the day, i'll just go back to my kvm switch just as i would go back to bash if zsh started charging for its use (being a useful tool shouldn't mean sell out and squeeze it for every penny you can, smh disappointed)