@cindex nar, archive format
@cindex normalized archive (nar)
-Archives are stored in the ``normalized archive'' or ``nar'' format, which is
+@cindex nar bundle, archive format
+Each store item is written in the @dfn{normalized archive} or @dfn{nar}
+format (described below), and the output of @command{guix archive
+--export} (and input of @command{guix archive --import}) is a @dfn{nar
+bundle}.
+
+The nar format is
comparable in spirit to `tar', but with differences
that make it more appropriate for our purposes. First, rather than
recording all Unix metadata for each file, the nar format only mentions
the C locale collation order. This makes archive production fully
deterministic.
+That nar bundle format is essentially the concatenation of zero or more
+nars along with metadata for each store item it contains: its file name,
+references, corresponding derivation, and a digital signature.
+
When exporting, the daemon digitally signs the contents of the archive,
and that digital signature is appended. When importing, the daemon
verifies the signature and rejects the import in case of an invalid
@deftypevr {@code{dovecot-configuration} parameter} file-name mail-plugin-dir
Directory where to look up mail plugins.
-Defaults to @samp{"/etc/dovecot/modules"}, a union of all enabled mail
-plugins.
+Defaults to @samp{"/usr/lib/dovecot"}.
@end deftypevr
@deftypevr {@code{dovecot-configuration} parameter} space-separated-string-list mail-plugins
certificates and request signatures. Each certificate has a @code{name}
and several @code{domains}.
-@item @code{email}
-Mandatory email used for registration, recovery contact, and important
-account notifications.
+@item @code{email} (default: @code{#f})
+Optional email address used for registration and recovery contact.
+Setting this is encouraged as it allows you to receive important
+notifications about the account and issued certificates.
@item @code{server} (default: @code{#f})
Optional URL of ACME server. Setting this overrides certbot's default,
@table @asis
@item @code{package} (default: @code{docker})
-The Docker package to use.
+The Docker daemon package to use.
+
+@item @code{package} (default: @code{docker-cli})
+The Docker client package to use.
@item @code{containerd} (default: @var{containerd})
The Containerd package to use.
@item @code{proxy} (default @var{docker-libnetwork-cmd-proxy})
The Docker user-land networking proxy package to use.
-@item @code{enable-proxy?} (default @code{#f})
+@item @code{enable-proxy?} (default @code{#t})
Enable or disable the use of the Docker user-land networking proxy.
@item @code{debug?} (default @code{#f})