diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..91a40d7
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+
+int main(int argc, char* argv[])
+{
+	if (argc != 2) {
+		fprintf(stdcerr, "Use %s /path/to/filesystem\n", argv[0]);
+		return -1;
+	}
+
+	if (devopen(argv[1], NULL) != 1) {
+		fprintf(stdcerr, "Faild to open %s\n", argv[1]);
+		return -1;
+	}
+
+	// TODO
+
+
+	devclose();
+	return 0;
+}
+