This was submitted upstream
https://github.com/openbios/openbios/pull/12

diff --git a/config/scripts/switch-arch b/config/scripts/switch-arch
index b5acc6c..a96ef4b 100755
--- a/config/scripts/switch-arch
+++ b/config/scripts/switch-arch
@@ -38,7 +38,8 @@ longbits()
     if test "$cpu" = "sparc64" -o "$cpu" = "ia64" \
         -o "$cpu" = "amd64" -o "$cpu" = "x86_64" \
         -o "$cpu" = "powerpc64" -o "$cpu" = "ppc64" \
-        -o "$cpu" = "ppc64le" -o "$cpu" = "alpha" ; then
+        -o "$cpu" = "ppc64le" -o "$cpu" = "alpha" \
+        -o "$cpu" = "aarch64" -o "$cpu" = "riscv64" ; then
         echo 64
     else
         echo 32
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<tr class='logheader'><td><span title='2024-11-28 11:05:02 +0200'>2024-11-28</span></td><td class='logsubject'><a href='/guix/commit/etc/teams/rust?id=00acb49a9956231bc589bba92c22c4add0c9565b'>teams: rust: Add another manifest.</a></td><td>Efraim Flashner</td></tr>
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Change-Id: Icabed521eb71fa94237246b181974716bc8a3858


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<tr class='logheader'><td><span title='2024-01-04 12:31:45 +0200'>2024-01-04</span></td><td class='logsubject'><a href='/guix/commit/etc/teams/rust?id=8b559b37eafbf51fe4a602c091754a38b8ad28f7'>etc: Add rust-team manifest.</a></td><td>Efraim Flashner</td></tr>
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Change-Id: Ie43bd4a88d35270dcac7baaabeafbcc3a755db1e


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