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 
thod='get'>
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<div class='path'>path: <a href='/guix/log/?id=7faf9df0d2d3cc575857bd10bcec0aba9ccfc346'>root</a>/<a href='/guix/log/gnu?id=7faf9df0d2d3cc575857bd10bcec0aba9ccfc346'>gnu</a>/<a href='/guix/log/gnu/packages?id=7faf9df0d2d3cc575857bd10bcec0aba9ccfc346'>packages</a>/<a href='/guix/log/gnu/packages/sync.scm?id=7faf9df0d2d3cc575857bd10bcec0aba9ccfc346'>sync.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/sync.scm?id=7faf9df0d2d3cc575857bd10bcec0aba9ccfc346&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-09-24 02:00:00 +0200'>2023-09-24</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=64e49f9668526c25fc38be07b95e1a271c3d2959'>gnu: onedrive: Update to 2.4.25.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (onedrive): Update to 2.4.25.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2023-09-17 16:22:03 -0400'>2023-09-17</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=a6170fcd2ba1b4b677399f048bdcd7a5701775af'>gnu: Remove extraneous imports.</a><span class='msg-avail'>...<span class='msg-tooltip'>Found by running 'guild compile -W3 gnu/packages/$module.scm', using guild
from the upcoming Guile.

* gnu/packages/admin.scm: Remove extraneous imports.
* gnu/packages/avr.scm: Likewise.
* gnu/packages/base.scm: Likewise.
* gnu/packages/bootloaders.scm: Likewise.
* gnu/packages/firmware.scm: Likewise.
* gnu/packages/linphone.scm: Likewise.
* gnu/packages/telephony.scm: Likewise.
* gnu/packages/cran.scm: Likewise.
* gnu/packages/kde.scm: Likewise.
* gnu/packages/libcanberra.scm: Likewise.
* gnu/packages/libreoffice.scm: Likewise.
* gnu/packages/mes.scm: Likewise.
* gnu/packages/mingw.scm: Likewise.
* gnu/packages/serialization.scm: Likewise.
* gnu/packages/sync.scm: Likewise.
* gnu/packages/syncthing.scm: Likewise.
* gnu/packages/terminals.scm: Likewise.
* gnu/packages/version-control.scm: Likewise.
* gnu/packages/video.scm: Likewise.
* gnu/packages/wm.scm: Likewise.
* gnu/packages/emulators.scm: Likewise.

Reviewed-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-07-23 02:00:00 +0200'>2023-07-23</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=789f7e9a3d37135d22d0a84c987fe3877131fd06'>gnu: fuse@3: Bind to default FUSE variable.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/linux.scm (fuse): Rename this…
(fuse-2): …to this, and…
(fuse-3): …rename this…
(fuse): …to this!
(fuse-static): Rename this…
(fuse-2-static): …to this.
Adjust all users.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2023-07-02 20:40:59 +0200'>2023-07-02</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=246445b20d6a6433ac94a7f6f7bd943bde5c4827'>gnu: nextcloud-client: Update to 3.8.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (nextcloud-client): Update to 3.8.2.
[snippets]: Keep 3rd-party files from kirigami. Remove more references of
deleted 3rd parties.  Adjust substitute for new code.
[configure-flags]: Disable building the updater.
[phases]&lt;patch-cmake&gt;: Adjust substitute for new code.
&lt;check&gt;: Use custom phase to disable a failing test.
[inputs]: Add dbus and karchive.
[native-inputs]: Add librsvg-for-system.
</span></span></td><td>Hartmut Goebel</td></tr>
<tr><td><span title='2023-06-14 19:08:36 +0300'>2023-06-14</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=cb902d7e1bcddd6f4223d0c90b134e4728ac2295'>gnu: onedrive: Link to all necessary libraries.</a><span class='msg-avail'>...<span class='msg-tooltip'>Reported by adanska on IRC.

* gnu/packages/sync.scm (onedrive)[arguments]: Remove custom
'link-to-external-libraries phase to allow linking to more libraries.
</span></span></td><td>Efraim Flashner</td></tr>