Dayhawk has been watching several streamers it appears that trader Jen is the most loved trader in the game. It prompted him to write this mod. It does not require additional resource files so it is safe to use on a server without everyone downloading their own copy of the mod.
When your survivor becomes a master at advanced engineering, you can now craft your own JenDroid! It requires a reasonable amount of materials and is geared towards mid to late game. She walks around your base and if your within 3 blocks of her she will increase your healing rate. She also can reduce the time for sprained or broken limbs by around 1/2. Nothing too over powerful but a fun little addition. Dayhawk plan on having droid versions of the other traders as he move forward.
Warning: JenDroid has desires to wander the world and see new things. Handle this as you will.
The forum topic of the mod is here.