diff --git a/make.sh b/tools/bin/td
similarity index 100%
rename from make.sh
rename to tools/bin/td
diff --git a/tools/env.sh b/tools/env.sh
new file mode 100644
index 0000000..dadcf26
--- /dev/null
+++ b/tools/env.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env sh
+
+find tools/bin -type f | while IFS= read -r tool; do
+	chmod +x "$tool"
+done
+
+PATH="$(pwd)/tools/bin:$PATH"