"Google Summer of Code is a program that offers student developers stipends to write code for various open source projects. Historically, the program has brought together over 7,500 students with over 440 open source projects, to create over 50 millions of lines of code."
https://developers.google.com/open-source/gsoc/
"The Project Grants program funds Wikimedia community members - individuals, groups, or organizations contributing to Wikimedia projects such as Wikipedia or Commons - to organize projects that benefit the Wikimedia movement."
https://meta.m.wikimedia.org/wiki/Grants:Project
"The basic terms and conditions of this program are quite similar to Google's GSoC. The key differences are that: [...] We will also consider a broader range of proposals than GSoC: technical documentation is a specific area of interest for us."
https://www.x.org/wiki/XorgEVoC/