I will (occasionally? rarely?) post stuff in English on this website. Please check the blog for Japanese content.
I go by sylph01 (generally) or G4CUBE (in gaming communities) on the Web. My real name can be found on slides at tech events (I tend to use my handle name more on the Web).
I develop (and help people develop) data privacy focused apps and OAuth/OpenID Connect enabled apps. I sometimes appear in standardization groups (recently at W3C’s HTTPS in Local Network Community Group and Web of Things Working Group). My programming languages of choice are Ruby and Elixir.