Kosshi
A simple, fast outliner
Works
We showed a mushroom robot and Sankome at Hakubutsu Festa
#Sankome#ElectronicsOn July 20, 2026, we showed a mushroom robot and Sankome at Hakubutsu Festa! 12. The theme of our exhibit was: “How can we make an object look alive?” Sankome is a “mysterious creature.” It moves its eyes, reacts when shaken, and falls asleep when left alone. These small behaviors help it feel alive. I had been wondering where this sense of life and energ
Read more →I dropped the contact form and put up my email
#KosshiI recently changed how people contact me, from a form to just my email address. It started with a small thing that had been bugging me. People come in through a form, but I reply by email. Once someone writes through the form and we move to email, the next time they want to reach me, they're not sure which one to use. The form again? Or just email me? Eith
Read more →I started a newsletter for Kosshi
#Kosshi#NewsletterA while back I wrote that feedback for Kosshi had started pouring in over email. That hasn't let up, and I've been living in my inbox ever since. The thing that kept bugging me was simple. I can reply to people one by one, but I had no way to tell everyone using Kosshi, "hey, this is changing." I keep a release-notes page, and I post the occasional "just s
Read more →Kosshi feedback has been pouring in lately
#KosshiLately, the feedback coming in through Kosshi's contact form has been getting a bit wild. As I mentioned in an earlier post, hardly anyone outside Japan was using Kosshi, so when I put it on Product Hunt my expectations were honestly pretty light, something like "maybe the numbers will tick up a little." Then this week, a longtime overseas outliner user, m
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