Web Diary (web-nikki)

2026

• I attended RubyKaigi 2026

  2026-05-01 — RubyKaigi / Personal History and Life — RubyKaigi / Family / Hakodate

• Social media is broken, especially X and YouTube

  2026-03-05 — AI and the Internet — Social media / X / YouTube

2025

• A record for remembering my relationship with cameras

  2025-12-01 — Personal History and Life — Camera / Photography / Film

• An update on product development with AI

  2025-07-04 — AI and the Internet / Product — AI agents / Code generation / Product development

• The fusion of technology and family - I went to RubyKaigi 2025

  2025-04-21 — RubyKaigi / Personal History and Life — RubyKaigi / Family / Management

• It has been a while since I bought a fixed-gear bicycle

  2025-03-23 — Personal History and Life — Bicycle / Fixed gear / Piste bike

2024

• Thinking about the relationship between AI and humans through AI correction quality checks

  2024-12-07 — Education / AI and the Internet — AI correction / Education / Quality control

• The Art of Repairing the World

  2024-10-27 — AI and the Internet / Personal History and Life — Sustainability / Distributed systems / Christopher Alexander

• What I think about when developing AI products or introducing AI into existing products

  2024-08-03 — AI and the Internet / Product — AI / Product management / Generative AI

• I attended RubyKaigi 2024

  2024-05-19 — RubyKaigi / Personal History and Life — RubyKaigi / Family participation / STORES

2023

• I attended RubyKaigi 2023

  2023-05-14 — RubyKaigi — RubyKaigi / Ruby / Technical community

2022

• Miscellaneous thoughts on web3

  2022-01-16 — AI and the Internet — web3 / DAO / NFT

2021

• Seven hypotheses on why educational institutions cannot shift to active learning

  2021-11-10 — Education — Active learning / Educational philosophy / Flipped learning

• Games and getting an engineering job, as strategy

  2021-09-23 — Personal History and Life — Games / Job hunting / Engineer

• Summary of coaching steps

  2021-07-14 — Education — Coaching / Habit formation / Goal setting

2020

• What the development team did to move lessons online

  2020-08-01 — Work and Organizations / Product — Online transition / Development team / Emergency response

• How the education industry will change after 2020, or how it should change

  2020-04-25 — Education — EdTech / Education reform / Personalized learning

• Notes comparing video conferencing services

  2020-04-22 — Work and Organizations / Product — Video conferencing / Zoom / Google Meet

• What we did to move lessons online

  2020-04-03 — Work and Organizations / Education — Online lessons / COVID-19 / Education

2019

• On product development cycles and priorities

  2019-12-04 — Work and Organizations / Product — Product development / Priorities / Decision making

• The product development cycle

  2019-08-30 — Work and Organizations / Product — Product development / Development cycle / Hypothesis testing

• RubyKaigi 2019

  2019-04-20 — RubyKaigi — RubyKaigi / Ruby / Community

• On value standards and systems

  2019-01-23 — Personal History and Life / Work and Organizations — Values / People / Systems

2018

• About developing engineers

  2018-09-12 — Work and Organizations / Education — Engineer development / Organization design / Learning

• I went to RubyKaigi 2018

  2018-06-02 — RubyKaigi — RubyKaigi / Ruby / Tech community

2017

• Notes on knowledge-labor-intensive industries

  2017-08-19 — AI and the Internet — Knowledge work / Machine learning / Industrial structure

• Five years of building a development department inside an education company

  2017-01-14 — Work and Organizations / Education — Development organization / Engineer development / Education company

2016

• Thinking about technology as a means from a programmer's perspective

  2016-11-28 — Work and Organizations / Product — Technology selection / Problem solving / User first

• Think not about what artificial intelligence will do, but what we can do with artificial intelligence

  2016-02-05 — AI and the Internet — Artificial intelligence / Deep learning / AlphaGo

2015

• Endless work and fulfillment in life

  2015-08-23 — Personal History and Life — Work-life balance / View of work / Life

• I think "not doing it" is a perfectly valid alternative

  2015-08-17 — Work and Organizations / Product — Decision making / Prioritization / Brainstorming

• Leadership starts by deciding that you are a leader

  2015-08-04 — Work and Organizations — Leadership / Decision making / Mindset

• Not being able to multitask is not about being clumsy

  2015-07-26 — Work and Organizations — Multitasking / Focus / Productivity

• Ryu Murakami: Writing a novel is not an everyday act

  2015-07-26 — Personal History and Life — Ryu Murakami / Creation / Programming

• About loudness, volume, and correctness

  2015-07-24 — AI and the Internet — Internet / Misinformation / Media literacy

• Trying Deep Learning

  2015-07-22 — AI and the Internet — Deep Learning / DeepDream / Docker

• A single point of luxury: a way to balance speed and quality

  2015-07-16 — Work and Organizations / Product — Startup / Quality / Speed

• How is EdTech different from e-learning?

  2015-07-10 — Education / AI and the Internet — EdTech / E-learning / Education

• What matters as a CTO

  2015-06-20 — Work and Organizations — CTO / Leadership / Collaboration

• A programmer's way to spot a company headed for bankruptcy

  2015-06-17 — Work and Organizations / Product — Bankruptcy / Company analysis / Test code

• What matters when introducing a remote work system

  2015-06-13 — Work and Organizations / Product — Remote work / Organization design / Hiring