Open-source is a great philosophy. The world needs great minds to nurture this realm of opensource and at the same time, the maintainers need to be kept motivated throughout the process of building and cultivating the opensource solutions. We have grown in and learnt a lot from this world.
When we get something for free and we want to appreciate, we usually donate. We expect our beloved donors to share their love, even though as small as US$25, will help us do more contribs and help community grow in turn.
Kindly look at our github repository, and feel free to use and spread the word about those.