This is a bunch of follow-up questions I feel both users and occasionally builders want easy clarified without to much research or experiments. I neither say these cannot be partly answered in nor derived from the manual documentation. Additional questions may appear ;) Q1 What capabilites/features does the pre-build Cingg AppImage and/vs the package build (ex. RPM) have? especially with regards to ffmeg, multimedia codecs, encoders etc. Q2 Is the AppImage static linked and RPM dynamic linked or combined dynamic/staticvwith regards to libs? Q3 Does the AppImage use the thirdparty ffmpeg and the RPM the local system ffmpeg? or are both static builds with third party ffmpeg Q4 Where is possibly the ffmpeg binary for the extracted AppImage and installed RPM? for own build ffmpeg binary is found in cinelerra-5.1/thirdparty/ffmpeg-8.0/ffmpeg Q5 Who make and maintain the thirdparty ffmpeg and what extra codecs are added? Q6 What are the configure scripts for the AppImage vs RPM? Q7 What extra capabilites/features may be achieved and justified with own custom build? what config elements? Q8 How often is it needed or suggested to download (or update if possible) the source repo via git clone?