# Frontend integration

zkApps using NEBRA UPA will need to allow users to submit and monitor proofs. To make this workflow easy we have created a `@nebrazkp/upa/sdk` package that is browser-compatible. This package is a strict subset of the `@nebrazkp/upa` package and most of the functionality for submitting and monitoring proofs (as described in the previous sections) is available in the browser.

To see an example of how to integrate the `@nebrazkp/upa/sdk` package in a NextJS or React project please refer to `ui` folder of the `simple-app-demo` [repository](https://github.com/NebraZKP/simple-app-demo) on GitHub. To see the finished product, you can visit the [demo website](https://simple-app.nebra.one/).


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