Codesigning may fail, if not all currently assumed artifacts are there
Currently the codesigning using the -c option only works with the releng profile, as e.g. the baseline profile lacks the assumed build artifacts (e.g. ucode images).
The list of files to be codesigned needs to be more dynamically assembled than it is the case right now.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information