Ship the change.Prove what shipped.

import { createClient } from "@nanoflags/sdk";

const flags = createClient({
  sdkKey: process.env.NANOFLAGS_SDK_KEY!,
  baseUrl: "https://edge.nanoflags.io",
  service: "checkout-api",
});

await flags.ready(); // never rejects
const on = flags.boolean("checkout-v2", false, { key: user.id, region: "EU" });
// Evaluated locally. Falls back to false only if no config has ever loaded.

import { createClient } from "@nanoflags/sdk";
import { NanoFlagsProvider, useFlag } from "@nanoflags/sdk/react";

const client = createClient({ sdkKey: "nf_pub_…", baseUrl: "https://edge.nanoflags.io", service: "web" });

export function App({ user }) {
  return (
    <NanoFlagsProvider client={client} context={{ key: user.id }}>
      <Checkout />
    </NanoFlagsProvider>
  );
}

function Checkout() {
  const v2 = useFlag("checkout-v2", false);
  return v2 ? <NewCheckout /> : <OldCheckout />;
}

import { OpenFeature } from "@openfeature/server-sdk";
import { createClient } from "@nanoflags/sdk";
import { NanoFlagsProvider } from "@nanoflags/openfeature-provider/server";

const nanoflags = createClient({ sdkKey: process.env.NANOFLAGS_SDK_KEY!, baseUrl: "https://edge.nanoflags.io" });
await OpenFeature.setProviderAndWait(new NanoFlagsProvider({ client: nanoflags }));

const on = await OpenFeature.getClient().getBooleanValue("checkout-v2", false, { targetingKey: user.id });

npm i -g @nanoflags/cli
nanoflags scenarios run --source draft   # gate a publish in CI
nanoflags refs scan . --repo acme/web    # find flag references
nanoflags export --out project.json      # take everything with you