diff --git a/Makefile b/Makefile
index 013ad50..3894aa9 100644
--- a/Makefile
+++ b/Makefile
@@ -3,11 +3,29 @@
 # SPDX-FileCopyrightText: 2023 Glenn Y. Rolland <glenux@glenux.net>
 # Copyright © 2023 Glenn Y. Rolland <glenux@glenux.net>
 
+PREFIX=/usr
+
 all: build
 
+prepare:
+	shards install
+
 build:
 	shards build --error-trace
 	@echo SUCCESS
 
 watch: 
 	 watchexec --restart --delay-run 3 -c -e cr make build
+
+spec: test
+test:
+	crystal spec --error-trace
+
+install:
+	install \
+		-m 755 \
+		bin/code-preloader \
+		$(PREFIX)/bin
+
+.PHONY: spec test build all prepare install
+