diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..0336123
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,15 @@
+.PHONY.: test
+test:
+	nimble test
+
+.PHONY.: build
+build: test
+	nimble build
+
+.PHONY.: install
+install: test
+	nimble install
+
+diagrams: doc/vcard3.mmd doc/vcard4.mmd
+	mmdc -i doc/vcard3.mmd -o doc/vcard3.png
+	mmdc -i doc/vcard4.mmd -o doc/vcard4.png