I got a Nexus 5 on 2014-06-17 (getgoods, 314.90€).

Unlocking the bootloader

This step will delete all data on the device (except for the stock image itself), thus I recommend to do it immediately before you setup much stuff.

I used Arch Linux with android-tools 4.4.2_r2-1 and android-udev 89-1, but any ADK should work.

Turn the phone off. Then boot it into the bootloader/fastboot mode by holding volume down + power.

# fastboot devices
08XXXXXXXXXXX1e        fastboot
# fastboot oem unlock
...
OKAY [ 32.363s]
finished. total time: 32.363s
# fastboot reboot
rebooting...
finished. total time: 0.001s

On booting, you should see an open lock now.

Getting root access

You could now flash a recovery image and then replace the stock ROM, but I didn’t want to, because I’d like to have OTA updates and think the stock ROm is fine.

Put SuperSU on the phone. Either download it directly, or use adb:
- Enter Settings -> About phone -> Tap 7x Build Number -> Unlock Developer Mode -> Enable USB debugging.
```
# adb push UPDATE-SuperSU-v2.00.zip /sdcard/
```
Turn the phone off. Then boot it into the bootloader/fastboot mode by holding volume down + power.

Temporarily boot into TWRP. This will not modify the recovery image, but just load it once.

# fastboot boot openrecovery-twrp-2.7.1.1-hammerhead.img 
downloading 'boot.img'...
OKAY [  0.654s]
booting...
OKAY [  0.115s]
finished. total time: 0.770s

Install -> select UPDATE-SuperSU-v2.00.zip -> Clear Dalvik&Cache -> Reboot.

Enjoy your rooted phone. Possibly, you’ll need to repeat this step after OTA updates (also try SuperSU survival mode).

(Resources: http://forum.xda-developers.com/google-nexus-5/general/guide-nexus-5-how-to-unlock-bootloader-t2507905 and http://forum.xda-developers.com/showthread.php?t=2439536)

Install AdAway

You can now install AdAway.

Install YouTube AdAway

You can now install Xposed and then YouTube AdAway.

More Xposed

GEL settings to remove the Google Search bar from the launcher.
Custom Share to rearrange the “Share with…” menu.

The End