diff --git a/build.zig b/build.zig
--- a/build.zig
+++ b/build.zig
@@ -6,10 +6,19 @@
 
     const options = b.addOptions();
 
-    const space = b.addModule("space", .{
+    const st = b.addModule("st", .{
+        .root_source_file = b.path("src/st/root.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const space = b.createModule(.{
         .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
+        .imports = &.{
+            .{ .name = "st", .module = st },
+        },
     });
 
     space.addOptions("build-options", options);
diff --git a/src/st/root.zig b/src/st/root.zig
new file mode 100644
--- /dev/null
+++ b/src/st/root.zig