How to develop directly on the Arduino Yun

The OpenHybrid arduino Yun image has SSHFS on board.
You can mount the filesystem via

sshfs root@<objectName>.local:/ ~/mountpoint

Additional you can get in to the shell via:

ssh root@<objectName>.local

The image has a swap image activated.
This means that npm installations for node.js will work just fine, but take for ever to complete.