After a few years, we have a new release. Suddenly, images from the hamqsl server stopped loading. The website is behind something like a firewall that checks the UserAgent string. I've set the UserAgent to Firefox and the program works again.
New files can be downloaded from https://github.com/ok2cqr/cqrprop. There are binaries and deb files for amd64 and binaries for arm64.