I was able to modify the existing Fedora spec file for owncloud-client, to build a package with the nextcloud theming: Here is the spec file: https://github.com/tpokorra/lbs-nextcloud/blob/master/nextcloud-client/nextcloud-client.spec And the source rpm is available here: https://tpokorra.fedorapeople.org/nextcloud/ Builds for the various Fedora versions,