diff --git a/rootfs.py b/rootfs.py
index 7d1f3108..2e612236 100755
--- a/rootfs.py
+++ b/rootfs.py
@@ -186,11 +186,21 @@ with open(config_path, "w", encoding="utf-8") as cfg:
 # Ensure resumed stage0-image init scripts have minimal early mounts and
 # only restore networking after get_network has run.
 mount_marker = "# LB_STAGE0_EARLY_MOUNTS"
+regen_marker = "# LB_STAGE0_REGENERATE_SCRIPTS"
 legacy_network_block = (
     'if [ "${CHROOT}" = False ] && command -v dhcpcd >/dev/null 2>&1; then\\n'
     'dhcpcd --waitip=4 || true\\n'
     'fi\\n'
 )
+regen_block = (
+    regen_marker + "\\n"
+    + 'if [ -x /script-generator ] && [ -f /steps/manifest ]; then\\n'
+    + '/script-generator /steps/manifest\\n'
+    + 'fi\\n'
+    + 'if [ -x /script-generator ] && [ -f /steps-guix/manifest ]; then\\n'
+    + '/script-generator /steps-guix/manifest /steps\\n'
+    + 'fi\\n'
+)
 gated_network_block = (
     'if [ -f /steps/env ]; then\\n'
     '. /steps/env\\n'
@@ -226,6 +236,15 @@ for init_name in os.listdir(mountpoint):
     if legacy_network_block in init_content and gated_network_block not in init_content:
         init_content = init_content.replace(legacy_network_block, gated_network_block)
 
+    if regen_marker not in init_content:
+        first_newline = init_content.find("\\n")
+        if first_newline != -1:
+            init_content = (
+                init_content[: first_newline + 1]
+                + regen_block
+                + init_content[first_newline + 1 :]
+            )
+
     with open(init_path, "w", encoding="utf-8") as init_file:
         init_file.write(init_content)
 
diff --git a/steps-guix/guile-semver-0.2.0/pass1.sh b/steps-guix/guile-semver-0.2.0/pass1.sh
index ace38a62..078bd1e8 100755
--- a/steps-guix/guile-semver-0.2.0/pass1.sh
+++ b/steps-guix/guile-semver-0.2.0/pass1.sh
@@ -8,17 +8,20 @@ src_prepare() {
 src_configure() {
     local host_triplet pkg_config_path
     host_triplet="$(gcc -dumpmachine)"
-    pkg_config_path="${LIBDIR}/pkgconfig"
+    pkg_config_path="${LIBDIR}/pkgconfig:${PREFIX}/lib/pkgconfig:${PREFIX}/share/pkgconfig"
 
     PATH="${PREFIX}/bin:/usr/bin:/bin" \
+    PKG_CONFIG="/usr/bin/pkg-config" \
     PKG_CONFIG_LIBDIR="${pkg_config_path}:${PREFIX}/lib/pkgconfig" \
     PKG_CONFIG_PATH="${pkg_config_path}:${PREFIX}/lib/pkgconfig" \
-    LD_LIBRARY_PATH="${LIBDIR}:${LD_LIBRARY_PATH}" \
+    LD_LIBRARY_PATH="${LIBDIR}:${PREFIX}/lib:${LD_LIBRARY_PATH}" \
     ./configure \
         --prefix="${PREFIX}" \
         --libdir="${LIBDIR}" \
         --host="${host_triplet}" \
-        --build="${host_triplet}"
+        --build="${host_triplet}" \
+        '--with-guile-site-dir=$(datarootdir)/guile/site/$(GUILE_EFFECTIVE_VERSION)' \
+        '--with-guile-site-ccache-dir=$(libdir)/guile/$(GUILE_EFFECTIVE_VERSION)/site-ccache'
 }
 
 src_compile() {
@@ -28,3 +31,20 @@ src_compile() {
 src_install() {
     default_src_install
 }
+
+src_postprocess() {
+    local guile_site_path guile_site_ccache guile_core_ccache
+
+    default_src_postprocess
+
+    guile_site_path="${DESTDIR}${PREFIX}/share/guile/site/3.0:${PREFIX}/share/guile/site/3.0:${PREFIX}/share/guile/3.0"
+    guile_site_ccache="${DESTDIR}${LIBDIR}/guile/3.0/site-ccache:${LIBDIR}/guile/3.0/site-ccache"
+    guile_core_ccache="${LIBDIR}/guile/3.0/ccache"
+
+    PATH="${PREFIX}/bin:/usr/bin:/bin" \
+    GUILE_LOAD_PATH="${guile_site_path}" \
+    GUILE_LOAD_COMPILED_PATH="${guile_site_ccache}:${guile_core_ccache}" \
+    GUILE_SYSTEM_PATH="${guile_site_path}" \
+    GUILE_SYSTEM_COMPILED_PATH="${guile_site_ccache}:${guile_core_ccache}" \
+    "${PREFIX}/bin/guile" -c '(use-modules (semver)) (display "semver-module-ok\n")'
+}
diff --git a/steps-guix/guix-1.5.0/pass1.sh b/steps-guix/guix-1.5.0/pass1.sh
index d824c87a..cf4a423a 100755
--- a/steps-guix/guix-1.5.0/pass1.sh
+++ b/steps-guix/guix-1.5.0/pass1.sh
@@ -169,6 +169,7 @@ src_configure() {
     probe_guile_module git
     probe_guile_module zlib
     probe_guile_module lzlib
+    probe_guile_module semver
 
     PATH="${PREFIX}/bin:/usr/bin:/bin" \
     PKG_CONFIG="/usr/bin/pkg-config" \