For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:rounakagag/openSUSE_Tumbleweed/home:rounakagag.repo
zypper refresh
zypper install jack-keyboard
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:rounakagag/openSUSE_Slowroll/home:rounakagag.repo
zypper refresh
zypper install jack-keyboard
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:rounakagag/15.6/home:rounakagag.repo
zypper refresh
zypper install jack-keyboard
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:rounakagag/15.5/home:rounakagag.repo
zypper refresh
zypper install jack-keyboard