tlmgr cannot set paper size for context

[circumspect.readabilities830 at aceecat.org]

On a brand new TL install, I get:

 30+0 ~$ tlmgr -v context paper letter
D:appending to package log file: /usr/local/texlive/2023/texmf-var/web2c/tlmgr.log
D:appending to command log file: /usr/local/texlive/2023/texmf-var/web2c/tlmgr-commands.log
D:tlmgr:main: ::tldownload_server not defined
D:setup_programs: preferring system versions
D:program df found in path
D:program curl found in path
D:program wget found in path
D:TLUtils::setup_programs: checking for ssl enabled wget
D:TLUtils::setup_programs: wget has ssl, final wget args: --no-check-certificate --user-agent=texlive/wget --tries=4 --timeout=30 -q -O
D:program lz4 found in path
D:program gzip found in path
D:program xz found in path
D:tlmgr: found no paper file for context (from kpsewhich --progname=context --format="tex" cont-sys.tex)
tlmgr: An error has occurred. See above messages. Exiting.

Should I be worried? How should I fix it?

-- 
Ian