diff --git a/harness.ts b/harness.ts
new file mode 100755
index 0000000..9de8d02
--- /dev/null
+++ b/harness.ts
@@ -0,0 +1,25 @@
+#!/usr/bin/env -S deno run --allow-env --allow-run
+
+const execPath = Deno.args[0];
+
+function* range(min, max, incr = 1): Generator<number> {
+    let i = min;
+    do {
+        yield i
+        i += incr;
+    } while (i < max)
+}
+
+let ps = []
+
+for (let seed of range(0, 10)) {
+    for (let prob of (range(0, 1, 0.05))) {
+        const p = Deno.run({
+            cmd: [execPath, seed, prob, 1000],
+        });
+
+        ps.push(p)
+    }
+}
+
+await Promise.all(ps);