This patch was submitted upstream:
https://github.com/scheme/scsh/pull/46

diff --git a/scheme/lib-dirs.scm b/scheme/lib-dirs.scm
index a1fc009..c630fb4 100644
--- a/scheme/lib-dirs.scm
+++ b/scheme/lib-dirs.scm
@@ -75,6 +75,7 @@
               (let ((val (read)))
                 (cond ((eof-object? val) '())
                       ((string? val) (cons val (recur)))
+                      ((symbol? val) (cons (symbol->string val) (recur)))
                       ((not val) (append default-lib-dirs (recur)))
                       (else 
                        (error 
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<tr><td><span title='2024-08-18 02:00:00 +0200'>2024-08-18</span></td><td><a href='/guix/commit/gnu/home/services/gnupg.scm?id=0c9876a16a7ad636675a0a05b4234e5b4826dd5e'>home: Fix typo in parcimonie configuration.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/gnupg.scm (&lt;home-parcimonie-configuration&gt;)
[gnupg-aleady-torified?]: Rename to ‘gnupg-already-torified?’.

Change-Id: I0687f67a5cef410b8b1d579c57b318b9d269e0d0
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2024-07-26 18:22:04 +0200'>2024-07-26</span></td><td><a href='/guix/commit/gnu/home/services/gnupg.scm?id=b631640f3b41f7c1c992dca9d712c7e318593323'>home: Set 700 permissions on .gnupg with home-gpg-agent-service</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/gnupg.scm (gpg-agent-activation): New variable.
(home-gpg-agent-service-type) [extensions]: Extend
home-activation-service-type.

Change-Id: If3365c6cade2b03ee53a466ce1d63a5cdf654d6c
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Richard Sent</td></tr>
<tr><td><span title='2023-09-04 11:11:58 +0300'>2023-09-04</span></td><td><a href='/guix/commit/gnu/home/services/gnupg.scm?id=1af35bbb25b122cafddfd2f69b644d46c4beff85'>home: Add parcimonie service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/gnupg.scm (home-parcimonie-service-type,
home-parcimonie-configuration): New variables.
* doc/guix.texi (GNU Privacy Guard): Document it.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2023-04-08 22:56:19 +0200'>2023-04-08</span></td><td><a href='/guix/commit/gnu/home/services/gnupg.scm?id=6420015e6d3300e7a73da9a8253428d8386954d6'>home: Add gpg-agent service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/gnupg.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (GNU Privacy Guard): New node.
(Secure Shell): Link to it.
</span></span></td><td>Ludovic Courtès</td></tr>