Add nats-server install script

dot_local/bin/executable_install-nats-server

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+# shellcheck disable=SC1091
+source "${XDG_DATA_HOME}/buddy-up/includes/utils.sh"
+
+set -euo pipefail
+
+APP=nats-server
+VERSION=${VERSION:-2.11.4}
+DEST=${XDG_DATA_HOME}/apps/releases/${APP}
+
+main() (
+	URL=https://github.com/nats-io/nats-server/releases/download/v${VERSION}/nats-server-v${VERSION}-$(get_os)-$(get_arch).tar.gz
+	extract_tarball "${URL}" "${DEST}/${VERSION}" "--strip-components 1"
+	set_current_link "${DEST}" "${VERSION}"
+	set_link "${XDG_BIN_HOME}/${APP}" "${DEST}" "${APP}"
+)
+
+main "${@}"