This is the fourth bimonthly What Are You Working On? thread. Thanks to atucker for reminding me to make this post. Click here to see previous threads. So here's the question:

What are you working on? 

Here are some guidelines:

• Focus on projects that you have recently made progress on, not projects that you're thinking about doing but haven't started, those are for a different thread. 
• Why this project and not others? Mention reasons why you're doing the project and/or why others should contribute to your project (if applicable).
• Talk about your goals for the project.
• Any kind of project is fair game: personal improvement, research project, art project, whatever.
• Link to your work if it's linkable.