diff --git a/README.md b/README.md
index 9ce8eb4..e33224d 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,4 @@ All code is licensed under GPL-3.0 unless specified otherwise.
 | ---------------------- | ----------------------------------------------------- | --- |
 | [unlink.c](c/unlink.c) | [arshit](shell/bash/arshit)                           |     |
 | [cecho.c](c/cecho.c)   | [sshfs_mount_file.sh](shell/bash/sshfs_mount_file.sh) |     |
+|                        | [repo_build.sh](shell/bash/repo_build.sh)             |     |
diff --git a/shell/bash/repo_build.sh b/shell/bash/repo_build.sh
new file mode 100755
index 0000000..4460eee
--- /dev/null
+++ b/shell/bash/repo_build.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+# repo_build.sh
+# Script to create a signed Arch Linux repository
+# Usage: ./repo_build.sh [dir] [path-to-db] [key-id]
+
+cd "$(dirname "$0")"
+
+TARGET="${1-arch}"
+DB_FILE="${2-slonkrepo.db.tar.xz}"
+KEY_ID="${3-9C51F3072F8D11A2}"
+
+echo_stderr() {
+	echo $@ >&2
+}
+
+if [[ ! -d "${TARGET}" ]]; then
+	echo_stderr "Error: Not a directory: ${TARGET}"
+	exit 1
+fi
+
+for dir in "${TARGET}" "${TARGET}"/*; do
+	[[ ! -d "${dir}" ]] &&continue
+	echo_stderr "Processing '${dir}'"
+	cd "${dir}"
+	packages=()
+	for file in *.pkg*; do
+		[[ "${file}" == '*.pkg*' ]] && continue
+		[[ "${file}" =~ .*'.sig' ]] && continue
+		packages+=("${file}")
+		[[ -f "${file}.sig" ]] && continue
+		echo_stderr "Signing '${file}'"
+		if gpg -u "${KEY_ID}" --output "${file}.sig" --detach-sig "${file}"; then
+			echo_stderr "Signed '${file}'"
+		else
+			code=$?
+			echo_stderr "gpg failed with exit code ${code}."
+			exit $code
+		fi
+	done
+	if [[ "${#packages}" == 0 ]]; then
+		echo_stderr "No packages in '${dir}', ignoring"
+		cd - >/dev/null
+		continue
+	fi
+	if repo-add -n -s -k "${KEY_ID}" "${DB_FILE}" "${packages[@]}"; then
+		echo_stderr "Processed '${dir}'"
+	else
+		code=$?
+		echo_stderr "repo-add failed with exit code ${code}."
+		exit $code
+	fi
+	cd - >/dev/null
+done
+
+echo_stderr "All done"