diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..11961d5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+src/zig-cache
\ No newline at end of file
diff --git a/README.md b/README.md
index 598147f..88a4482 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 This is an experimental repository.
 
 We just want to try Zig code, writing basic functions and commands.
+
+## How to compile stuff.
+
+```sh
+zig build-exe src/command.zig
+```