Thank you Phil,
/usr/bin/gpg-agent is started by systemd and I think it should be left
as it is for the Debian package manager to use with /usr/bin/gpg. Why
cannot ~/bin/gpg use ~/bin/gpg-agent? Is it true that gpg in $HOME or
/usr/local should work independently from /usr/bin/gpg?
On Sat, Aug 2
This is quite a painful process; I went through a similar journey on macOS. For
me, it seemed that GPG was expecting my master key to be in the signing key
slot on my Yubikey. What helped me debug this was turning on logging with
gpg-agent, and guru-level logging on scdaemon... have you tried th