Ryu Otsu https://speakerdeck.com/rotsu1 2026-09-30 01:03:19 -0400 ユーザー目線で考えると、 作りたい物が見えてくる Wed, 30 Sep 2026 00:00:00 -0400 https://speakerdeck.com/rotsu1/yuza-mesen-de-kangaeru-to-tsukuritai-mono-ga-mie-te-kuru https://speakerdeck.com/rotsu1/yuza-mesen-de-kangaeru-to-tsukuritai-mono-ga-mie-te-kuru