+
+## Build Guide
+
+A build guide for putting together the Let's Split v2 can be found here: [An Overly Verbose Guide to Building a Let's Split Keyboard](https://github.com/nicinabox/lets-split-guide)
+
+There is additional information there about flashing and adding RGB underglow.
+
+## First Time Setup
+
+Download or clone the whole firmware and navigate to the keyboards/lets_split directory. Once your dev env is setup, you'll be able to generate the default .hex using:
+
+```
+$ make rev2
+```
+
+You will see a lot of output and if everything worked correctly you will see the built hex files:
+
+```
+lets_split_rev2_serial.hex
+lets_split_rev2_i2c.hex
+```
+
+If you would like to use one of the alternative keymaps, or create your own, copy one of the existing [keymaps](keymaps/) and run make like so:
+
+
+```
+$ make rev2-YOUR_KEYMAP_NAME
+```
+
+If everything worked correctly you will see a file:
+
+```
+lets_split_rev2_YOUR_KEYMAP_NAME.hex
+```
+
+For more information on customizing keymaps, take a look at the primary documentation for [Customizing Your Keymap](/readme.md##customizing-your-keymap) in the main readme.md.
+
+### Let's split 1.0
+If you have a first generation Let's Split you will need to use the revision 1 code. To do so, use `rev1` in all your commands instead.
+