2022 Call for Grant Proposals

Ruby Association grant overview

The Ruby Association is looking to give grants for development projects related to Ruby implementations, libraries and frameworks, including projects that improve existing software.

If you have a good idea, please submit a proposal. However, please note that we do not intend to fund development projects of Ruby applications for specific purposes because the aim of this grant is to improve Ruby and its environment.

Development Themes
  • Improving Ruby implementation (such as performance improvement and memory consumption reduction.)
  • Scientific libraries for mathematics, science & engineering.
  • Development support tools (such as debugger, profiler and static program analysis tools.)
  • Web (such as libraries for HTTP, HTML, etc., and web application frameworks.)
  • Tools for enterprise systems (such as reporting tools, batch processing tools, migration tools from the other languages to Ruby.)
Grant Size

JPY500,000 for each proposal.

Eligibility for applicants

Any individual or organization can submit one or more proposals.

Selection process

The grant committee will assess the proposals and will select up to a maximum of five projects.

Selection criteria

Applications will be judged on the following criteria (in no particular order):

  • Impact on the productivity and performance of Ruby and its environment
  • Originality and creativity of the project
  • Feasibility of the project

Accepted applicants are required to submit two reports: the intermediate report and the final report. The grant committee will evaluate them.


Accepted applicants are expected to be enthusiastic in promoting their project through talks, articles and blogging.

Copyrights and licenses of the deliverables

Accepted applicants will retain all rights of the deliverables. However, the deliverables are required to be licensed under one or more OSI approved licenses. When improving existing software, the licenses of the deliverables are required to be compatible with the original software.


To make our projects better, the Ruby Association grant program has a mentor system. The main task of the mentor is to provide accepted applicants with practical advice on a wide range of subjects such as development, schedule management and report writing. A mentor will be assigned from the Ruby Association to a projects at the latest when the development starts.

How to submit a proposal

Please send an email with the following information (in English) to grant(at)ruby.or.jp

  • Applicant name (individual or organization)
  • Contact person
  • Contact e-mail address
  • Brief biography
  • Project title
  • Project details
  • Project deliverables

All dates are in JST (UTC+09:00).

Oct 3, 2022 Due date for submission of proposals
Oct 21, 2022 Notification of the selection result
Jan 16, 2023 Due date for the intermediate reports
Mar 20, 2023 Due date for the final reports
Grant committee

The grant committee consists of the following members. (As of published date)

  • Akira Matsuda
  • Koichi Sasada
  • Koichiro Ohba
  • Yukihiro Matz Matsumoto
  • Kenta Murata
Past year’s grant accomplishment reports

Please click here to see accomplishment reports in 2021,2020, 2019, 2018, 2017, 2016, 2015 and 2014 .