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# The perfect Bitcoin Lightning️ node
> This article was first published in the [Odroid Magazine June 2018](https://magazine.odroid.com/article/thundroid-perfect-bitcoin-lightning-node/) issue.
> Part 1: Setup of Bitcoin & Lightning on testnet (this guide)
> Part 2: [Move to Bitcoin mainnet](thundroid_pt2.md)
> Part 3: Additional apps like desktop & mobile wallet
Bitcoin is a native digital currency for the internet age. It can be thought of as just another international currency, but without a native country, so it defies borders, trade policies and arbitrary inflation. In the 2008 [whitepaper](https://bitcoin.org/bitcoin.pdf) by the pseudonymous Satoshi Nakamoto it is described as:
> A purely peer-to-peer version of electronic cash [which] would allow online payments to be sent directly from one party to another without going through a financial institution.
Being peer-too-peer means that **Bitcoin** does not rely on a middleman (eg. a bank) and can be transfered as a bearer asset, like physical cash, without asking anyone for permission. With the added benefit that it does not need to be stored physically, as it is secured by a cryptographic key, and can be transferred within minutes to anyone anywhere in the world. One key component of this free open-source financial system is the blockchain, the ledger that keeps track of who owns how many bitcoin and that is stored as an identical copy by all users that decide to run a full Bitcoin node. (Learn more on [bitcoin.org](https://bitcoin.org))
Bitcoin is a economic experiment of epic scope, and its success is by no means certain. In any case, *Bitcoin as a new technology* is an incredibly interesting endeavor, especially because of its interdisciplinary nature and the very low barriers to entry. *Bitcoin as sound money*, being scarce and non-inflationary, challenging money as one of the last true monopolies of nation states, could have a major impact on economic principles and society as a whole.