Add zig build

.gitignore

@@ -1,2 +1,3 @@
-build
+/build
+/.zig-cache
 noom

build.zig

@@ -0,0 +1,38 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const root_module = b.createModule(.{
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true, // TODO: no more libc
+    });
+
+    const c = b.addExecutable(.{
+        .name = "noom",
+        .root_module = root_module,
+    });
+
+    c.root_module.addCSourceFiles(.{
+        .files = &[_][]const u8{
+            "src/helper.c",
+            "src/lexer.c",
+            "src/parser.c",
+            "src/main.c",
+        }
+    });
+
+    b.installArtifact(c);
+
+    const run_cmd = b.addRunArtifact(c);
+    run_cmd.step.dependOn(b.getInstallStep());
+
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run = b.step("run", "Build and run the project");
+    run.dependOn(&run_cmd.step);
+}