Storeman
https://openrepos.net/content/olf/storeman-installer

Storeman for SailfishOS releases ≥ 4.2.0

Note that, before software can be build for a SailfishOS release at the SailfishOS-OBS, Jolla must create a corresponding "download on demand (DoD)" OBS-repository.  It may take a little time after a new SailfishOS release is published before the corresponding "DoD" repository is being made available, during which installing Storeman by the Storeman Installer or updating Storeman by itself on a device with the new SailfishOS release already installed will not work, because the Storeman application cannot be compiled for this new SailfishOS release at the Sailfish-OBS, yet; consequently this is always the case during the "closed beta (cBeta)" phase of a new SailfishOS release.  Hence one has to manually download, and install or update Storeman built for the last prior SailfishOS "general availability (GA)" release via "pkcon install-local <downloaded RPM file>" (e.g. from its releases section at GitHub or the SailfishOS-OBS) then, and hope that there is no change in the new SailfishOS release, which breaks Storeman; if there is, please report that soon at Storeman's issue tracker: https://github.com/storeman-developers/harbour-storeman/issues

Issue tracker & source code repository:
https://github.com/storeman-developers/harbour-storeman