[taprun]

It sounds like you are trying to optimize for two goals:

1) Contribute to open source 2) Limit the amount of time you spend on tasks that don't contribute to your company

The solution seems simple enough. Examine the open source tools that you use to build your company. When you find problems, issues or inefficiencies in those tools, fix them. This will hopefully improve the tools and speed up your work on your company at the same time.

Alternatively, give the tools free press in your Twitter/Facebook/blog/whatever communications and hopefully you'll encourage someone else to contribute instead. As an added bonus, such communications may help spread word of your company.