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+{% comment %}
+This file is licensed under the MIT License (MIT) available on
+http://opensource.org/licenses/MIT.
+{% endcomment %}
+{% assign filename="_includes/devdoc/example_intro.md" %}
+
+{% autocrossref %}
+
+The following guide aims to provide examples to help you start
+building Bitcoin-based applications. To make the best use of this document,
+you may want to install the current version of Bitcoin Core, either from
+[source][core git] or from a [pre-compiled executable][core executable].
+
+Once installed, you'll have access to three programs: `bitcoind`,
+`bitcoin-qt`, and `bitcoin-cli`.
+
+* `bitcoin-qt` provides a combination full Bitcoin peer and wallet
+  frontend. From the Help menu, you can access a console where you can
+  enter the RPC commands used throughout this document.
+
+* `bitcoind` is more useful for programming: it provides a full peer
+  which you can interact with through RPCs to port 8332 (or 18332
+  for testnet).
+
+* `bitcoin-cli` allows you to send RPC commands to `bitcoind` from the
+  command line.  For example, `bitcoin-cli help`
+
+All three programs get settings from `bitcoin.conf` in the `Bitcoin`
+application directory:
+
+* Windows: `%APPDATA%\Bitcoin\`
+
+* OSX: `$HOME/Library/Application Support/Bitcoin/`
+
+* Linux: `$HOME/.bitcoin/`
+
+To use `bitcoind` and `bitcoin-cli`, you will need to add a RPC password
+to your `bitcoin.conf` file. Both programs will read from the same file
+if both run on the same system as the same user, so any long random
+password will work:
+
+~~~
+rpcpassword=change_this_to_a_long_random_password
+~~~~
+
+You should also make the `bitcoin.conf` file only readable to its
+owner.  On Linux, Mac OSX, and other Unix-like systems, this can be
+accomplished by running the following command in the Bitcoin application
+directory:
+
+~~~
+chmod 0600 bitcoin.conf
+~~~
+
+For development, it's safer and cheaper to use Bitcoin's test network (testnet)
+or regression test mode (regtest) described below.
+
+Questions about Bitcoin use are best sent to the [BitcoinTalk forum][forum
+tech support] and [IRC channels][]. Errors or suggestions related to
+documentation on Bitcoin.org can be [submitted as an issue][docs issue]
+or posted to the [bitcoin-documentation mailing list][].
+
+In the following documentation, some strings have been shortened or wrapped: "[...]"
+indicates extra data was removed, and lines ending in a single backslash "\\"
+are continued below. If you hover your mouse over a paragraph, cross-reference
+links will be shown in blue.  If you hover over a cross-reference link, a brief
+definition of the term will be displayed in a tooltip.
+
+{% endautocrossref %}