I would like to add another point to this request.
Previously, with v4.0.0 RC5, it was possible to install plugins by following the method described in this discussion:
https://groups.google.com/g/horos-project/c/5mMpNg2lNn4/m/XwmuYGjfAQAJ
However, with the currently distributed v4.0.1 build, this method no longer works and the plugins cannot be installed.
For example, plugins such as JPG2DICOM and PDF2DICOM were installable using this approach with v4.0.0 RC5, but installation is not possible with v4.0.1.
If the v4.0.1 source code were published, it would greatly help developers in the community. I would like to try updating or recreating these plugins so they can be installed and used with the latest version.
Thank you for your consideration and for maintaining the Horos project.