$ (...)/nextcloud/desktop/build/build/bin/.nextcloud ./nextcloud: error while loading shared libraries: libnextcloudsync.so.0: cannot open shared object file: No such file or directory

expect it run fine because file exists in
$ (...)/nextcloud/desktop/build/build/lib/

OS: Ubuntu Mate LTS 18.04

Nextcloud: latest commit at time of cloning: d6b3432

used instruction on https://github.com/nextcloud/desktop/wiki/How-to-compile-the-desktop-client for compilation

install path was custom ( in a homefolder)