Evrone always encourages the developers to work on what they love and contribute back to the software world by writing open-source, that's how Cuprite Ruby driver for Capybara was born.

We are looking for sustainable sponsorship. If your company is relying on rom-rb or simply want to see rom-rb evolve faster to meet your requirements, please consider backing the project

I also sell Sidekiq Pro and Sidekiq Enterprise, extensions to Sidekiq which provide more features, a commercial-friendly license and allow you to support high quality open source development all at the same time.

PyPy was funded by the European Union being a Specific Targeted Research Project

For the $$$ question, nothing comes to mind. These problems i'm hitting up against are larger than a contractor could solve in a few hours of work (which would be hundreds/thousands of dollars).

Yeah, can we pay money to make this go faster? Serious question.

Licensed under the LGPLv3 license. We also offer a commercial-friendly license.

This project is provided by the LinkedIn Presentation Infrastructure team as open source software

Our mission is to allow people to make money via educational efforts and to dedicate the rest of their time to creating great open source products.

We’re now relaunching PRO, but instead of a paid chat and (never existing) paid documentation, your team gets access to paid gems, our visual editor for workflows, and a commercial license.

Trailblazer (TRB) is an Open-Source project. Since we want to keep it that way, we decided to raise awareness for the “cost” of our work - providing new versions and features is incredibly time-consuming for us, but we love what we do.

This creates a win-win situation, you as the user have your peace of mind, and we can continue working with your funds.

Great thanks to Blake Education for giving us the freedom and time to develop this project in 2013 while working on their project.