How to map multiple keyboards to the same OSX mappings

If you're trying to use Karabiner to support key remappings for multiple devices, you can take advantage of the templating syntax:

You can have your product and vendor ID definitions here:

	<?xml version="1.0"?>
	<root>
	<symbol_map type="KeyCode" name="PAGE_UP" value="0x74" />
	<symbol_map type="KeyCode" name="PAGE_DOWN" value="0x79" />
	<windownamedef>
	<name>emacs_terminal</name>
	<regex>emacs</regex>
	</windownamedef>
	<appdef>
	<appname>PyCharm</appname>
	<equal>com.jetbrains.pycharm</equal>
	</appdef>
	<appdef>
	<appname>Chrome</appname>
	<equal>com.google.Chrome</equal>
	</appdef>
	<devicevendordef>
	<vendorname>KINESIS</vendorname>
	<vendorid>0x518</vendorid>
	</devicevendordef>
	<deviceproductdef>
	<productname>ADVANTAGE</productname>
	<productid>0x0001</productid> <!--0x518 0x0001 -->
	</deviceproductdef>
	<devicevendordef>
	<vendorname>KINESIS2</vendorname>
	<vendorid>0x0557</vendorid>
	</devicevendordef>
	<deviceproductdef>
	<productname>CLASSIC</productname>
	<productid>0x2221</productid> <!--0x0557 0x2221-->
	</deviceproductdef>
	<include path="{{ ENV_HOME }}/Dropbox/Keyboard/core.xml">
	<replacementdef>
	<replacementname>PRODUCT</replacementname>
	<replacementvalue>DeviceVendor::KINESIS</replacementvalue>
	</replacementdef>
	<replacementdef>
	<replacementname>KEY</replacementname>
	<replacementvalue>DeviceProduct::ADVANTAGE</replacementvalue>
	</replacementdef>
	</include>
	</root>

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You define your main key remappings here:

	<?xml version="1.0"?>
	<root>
	<item>
	<identifier>emacs_pageup_pagedown_{{ PRODUCT}}</identifier>
	<name>Emacs pageup/pagedown</name>
	<windowname_only>emacs_terminal</windowname_only>
	<device_only>{{ PRODUCT }}, {{ KEY }} </device_only>
	<autogen>__KeyToKey__ KeyCode::PAGE_UP, KeyCode::V, ModifierFlag::OPTION_L</autogen>
	<autogen>__KeyToKey__ KeyCode::PAGE_DOWN, KeyCode::V, ModifierFlag::CONTROL_L</autogen>
	<autogen>__KeyToKey__ KeyCode::CONTROL_L, KeyCode::CONTROL_L</autogen>
	<autogen>__KeyToKey__ KeyCode::CONTROL_R, KeyCode::CONTROL_R</autogen>
	</item>
	<item>
	<identifier>Option_Tab_Remapping_{{ PRODUCT }}</identifier>
	<name>Kinesis remapping</name>
	<device_only>{{ PRODUCT }}, {{ KEY }} </device_only>
	<autogen>__KeyToKey__ KeyCode::TAB, ModifierFlag::OPTION_L, KeyCode::TAB, ModifierFlag::COMMAND_L</autogen>
	<autogen>__KeyToKey__ KeyCode::C, ModifierFlag::CONTROL_L, KeyCode::C, ModifierFlag::COMMAND_L</autogen>
	<autogen>__KeyToKey__ KeyCode::V, ModifierFlag::CONTROL_L, KeyCode::V, ModifierFlag::COMMAND_L</autogen>
	<autogen>__KeyToKey__ KeyCode::T, ModifierFlag::CONTROL_L, KeyCode::T, ModifierFlag::COMMAND_L</autogen>
	</item>
	<item>
	<identifier>PyCharm_{{ PRODUCT }}</identifier>
	<name>PyCharm</name>
	<only>PyCharm,Chrome</only>
	<device_only>{{ PRODUCT }}, {{ KEY }} </device_only>
	<autogen>__KeyToKey__ KeyCode::CONTROL_L, KeyCode::COMMAND_L</autogen>
	<autogen>__KeyToKey__ KeyCode::CONTROL_R, KeyCode::COMMAND_R</autogen>
	</item>
	</root>

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