Most end-user applications will use the [lbry-sdk](https://github.com/lbryio/lbry) as a way of accessing and communicating with the LBRY network. A look at the [APIs](/api/sdk) provided by the SDK will help you understand what facilities the SDK provides.
Some applications do not need to access content available on the network (e.g. a wallet-only app, or a blockchain visualizer). These applications might use [lbrycrd](https://github.com/lbryio/lbrycrd), the blockchain daemon, or [chainquery](https://github.com/lbryio/chainquery), which parses blockchain data into SQL.
Sometimes you don't need the [SDK](https://github.com/lbryio/lbry). If you wanted to build a block explorer, you would only need to include [lbrycrd](https://github.com/lbryio/lbrycrd). Or if you only want to search through blockchain, [chainquery](https://github.com/lbryio/chainquery) is perfect for that. You can pair these with any language or tooling you want.
It is also possible to create a browser extension similar to Joule and Metamask. The browser could interact with the [SDK](https://github.com/lbryio/lbry) running locally on a users computer, or through a centrally hosted server.
If you are looking for more decentralization, a full desktop app can achieve that. If that is not something you care about, there are still a number of features that are desirable over a traditional web application, with full access to the file system being one of those. This allows users to be in control of how they view their files, and if they want to help strengthen LBRY network through seeding.
If you would like to create a desktop application, there are a few ways to do so.
The [official LBRY desktop app](https://github.com/lbryio/lbry-desktop) is built with electron. It is very easy to develop with, and allows web developers to easily start creating "native" desktop applications. You can use a plain html page with a `<script>` tag, or build out a large web app. The official desktop app uses React.
If you do want to write an electron app, check out the [Electron Starter Project](https://github.com/lbryio/electron-starter) for a bare bones setup that is very similar to how [lbry-desktop](https://github.com/lbryio/lbry-desktop) is structured. It's also a simple way to explore the [SDK api]((https://https://lbry.tech/api/sdk)). We are actively trying to make it better. If you see something wrong, feel free to submit an issue or PR! :)
