workspace with decoupled nostr package

packages/app/src/Number.ts

@@ -0,0 +1,14 @@
+const intl = new Intl.NumberFormat("en", {
+  minimumFractionDigits: 0,
+  maximumFractionDigits: 2,
+});
+
+export function formatShort(n: number) {
+  if (n < 2e3) {
+    return n;
+  } else if (n < 1e6) {
+    return `${intl.format(n / 1e3)}K`;
+  } else {
+    return `${intl.format(n / 1e6)}M`;
+  }
+}