Koichi Sasada is one of a Ruby interpreter developer. He designed and implemented a core parts of Ruby interpreter such as a virtual machine (named YARV since Ruby 1.9.0), threading systems (since 1.9.0), generational garbage collector (since Ruby 2.1) and so on. Now he is working on designing a Ruby's new parallel/concurrent abstraction and implementing it.

I don't provide any rewards for tiers except the badge.
And you can ask me any questions and any requests without sponsorship.
Please contact me http://www.atdot.net/~ko1/ (or Task request).

Thank you for your supports. I wonder so many people sponsor me without any rewards.
Your support will be used for maintenance CI machines in my home, used by benchmark and high-speed response CI (2-3 min), mac ci and so on (maybe it can cover some of the electricity bill).

Personal efforts to improve the quality of Ruby interpreter (2022, Koichi Sasada) is an activity report about this sponsorship. Thank you again.