Synology packages v8.68h for installation with Package Center:

The user name is default and the password is pass.

Synology Intel 64-Bit Package  Synology Intel 32-Bit Package 
 
Synology ARM32 Package  Synology ARM64 Package  Synology ppc Package

QNAP packages v8.68h for installation with AppCenter:
QNAP Intel/AMD 64-Bit Package  QNAP Intel 32-Bit Package
 
The user name is default and the password is pass.
QNAP ARM 64-Bit Package 
 
For QNAPs with 32-bit ARM processors, there are four different packages. The left-most one is for the newest CPUs. Which one you need is best determined thru trial and error. The App Center will tell you if it can install the package or not.
ARM-x41   ARM-x31  ARM-x19   ARM-x09

Syncovery for Linux can be configured using the browser based GUI, command line parameters and XML files.

Download Syncovery for Linux v8.68h Debian and RPM Packages

These include the Web GUI and install and start the service automatically. The internal web server listens to port 8999. Do not use this on a server that is directly connected to the Internet. Use it only behind a router within your LAN.

After installation, open the Syncovery GUI by visiting localhost:8999 in your web browser.

64-Bit Intel Debian Package 64-Bit Intel RPM Package
 
32-Bit Intel Debian Package 32-Bit Intel RPM Package
 
32-Bit arm Debian Package 32-Bit arm RPM Package
 
32-Bit armhf Debian Package 32-Bit armhf RPM Package
 
64-Bit aarch64 Debian Package 64-Bit aarch64 RPM Package
 
32-Bit PowerPC Debian Package 32-Bit ppc RPM Package
 
64-Bit PowerPC Debian Package 64-Bit PowerPC RPM Package (V2 ABI – Void Linux etc.)
 
64-Bit PowerPC Debian Package 64-Bit PowerPC RPM Package (V1 ABI – old Debian etc.)
 
64-Bit ppc64el Debian Package 64-Bit ppc64le RPM Package
 

tar.gz files
64-Bit Intel (Command Line Only) 64-Bit Intel (With Web GUI)
 
32-Bit Intel (Command Line Only) 32-Bit Intel (With Web GUI)
 
32-Bit ARM (Command Line Only) 32-Bit ARM (With Web GUI)
 
32-Bit armhf (Command Line Only) 32-Bit armhf (With Web GUI)
 
64-Bit aarch64 (Command Line Only) 64-Bit aarch64 (With Web GUI)
 
32-Bit PowerPC (Command Line Only) 32-Bit PowerPC (With Web GUI)
 
64-Bit PowerPC (Command Line Only) 64-Bit PowerPC (With Web GUI) (V2 ABI – Void Linux etc.)
 
64-Bit PowerPC (Command Line Only) 64-Bit PowerPC (With Web GUI) (V1 ABI – old Debian etc.)
 
64-Bit ppc64le (Command Line Only) 64-Bit ppc64le (With Web GUI)