diff --git a/utils.sh b/utils.sh
index 3cdba21..cb111f2 100755
--- a/utils.sh
+++ b/utils.sh
@@ -40,7 +40,9 @@ abort() {
 get_rv_prebuilts() {
 	local cli_src=$1 cli_ver=$2 integrations_src=$3 integrations_ver=$4 patches_src=$5 patches_ver=$6
 	pr "Getting prebuilts (${patches_src%/*})" >&2
-	for f in "${TEMP_DIR}"/*-rv; do : >"${f}/changelog.md"; done
+	local cl_dir=${patches_src%/*}
+	cl_dir=${TEMP_DIR}/${cl_dir,,}-rv
+	[ -d "$cl_dir" ] || mkdir "$cl_dir"
 	for src_ver in "$cli_src CLI $cli_ver" "$integrations_src Integrations $integrations_ver" "$patches_src Patches $patches_ver"; do
 		set -- $src_ver
 		local src=$1 tag=$2 ver=${3-} ext
@@ -64,7 +66,7 @@ get_rv_prebuilts() {
 		file="${dir}/${name}"
 		[ -f "$file" ] || REBUILD=true
 
-		echo "$tag: $(cut -d/ -f5 <<<"$url")/${name}  " >>"$dir/changelog.md"
+		echo "$tag: $(cut -d/ -f5 <<<"$url")/${name}  " >>"${cl_dir}/changelog.md"
 		gh_dl "$file" "$url" >&2 || return 1
 		echo -n "$file "
 		if [ "$tag" = "Patches" ]; then
@@ -75,7 +77,7 @@ get_rv_prebuilts() {
 			url=$(jq -e -r '.assets[] | select(.name | endswith("json")) | .url' <<<"$resp") || return 1
 			gh_dl "$file" "$url" >&2 || return 1
 			echo -n "$file "
-			echo -e "[Changelog](https://github.com/${src}/releases/tag/${tag_name})\n" >>"$dir/changelog.md"
+			echo -e "[Changelog](https://github.com/${src}/releases/tag/${tag_name})\n" >>"${cl_dir}/changelog.md"
 		fi
 	done
 	echo
@@ -99,6 +101,7 @@ get_prebuilts() {
 }
 
 config_update() {
+	if [ ! -f build.md ]; then abort "build.md not available"; fi
 	declare -A sources
 	: >$TEMP_DIR/skipped
 	local conf=""
@@ -119,11 +122,10 @@ config_update() {
 			fi
 		else
 			sources[$PATCHES_SRC]=0
-			if ! last_patches_url=$(gh_req "https://api.github.com/repos/${PATCHES_SRC}/releases/latest" - \
+			if ! last_patches=$(gh_req "https://api.github.com/repos/${PATCHES_SRC}/releases/latest" - \
 				| jq -e -r '.assets[] | select(.name | endswith("jar")) | .name'); then
 				abort oops
 			fi
-			last_patches=${last_patches_url##*/}
 			cur_patches=$(sed -n "s/.*Patches: ${PATCHES_SRC%%/*}\/\(.*\)/\1/p" build.md | xargs)
 			if [ "$cur_patches" ] && [ "$last_patches" ]; then
 				if [ "${cur_patches}" != "$last_patches" ]; then