Hello,
I would love to help you with your Shopify App, and I have account on both bitbucket and github, so starting from your current code shouldn't be a problem.
Some quick questions for you:
-What do you want the app to do once it's finished?
-What language was the original version written in?
-Is your Shopify store already live and running?
For this project I plan to take the first day or two to understand the current code base and what it is doing.
From there, I would work to update and improve the app without altering the structure that is there already.
In the end, if I have time, I would like to add a web interface to make the app more easy to use.
A little bit more about me:
I've been programming for a few years, and I have some Shopify Apps live on the Shopify store currently. I enjoy working on programming problems, and I am excited to work on the interesting problem that you have presented here too.
Please let me know what you think and if you have any questions, and lets get started!
--
Eric