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• ✂️

  I Want to Use Browser Twitter’s Video Clip Feature on X.com Too! [Easy Video Trimmer for X.com]

  Published:2025/11/6

  A quick guide to using Easy Video Trimmer for X.com, a Chrome extension that lets you trim videos from the X.com post composer and attach them directly.

  • Google Chrome Extensions
  • X (ex-Twitter)
• ⏱️

  [Continuously updated] How many hours after an AWS exam does the result notification arrive?

  Published:2023/4/3/Updated:2025/10/3

  A continuously updated table of how many hours it took for AWS certification exam results to arrive after the exam, based on my own results and reports from around the web.

  • AWS
  • Certifications
• 📜

  Follow This and You Can Pass: My AWS Certified Solutions Architect - Professional (SAP-C02) Exam Experience

  Published:2025/10/1

  I successfully passed the AWS Certified Solutions Architect - Professional (SAP-C02) exam, so I’m sharing my experience.

  • AWS
  • Certifications
• 🎧

  How to Show the Song Playing in YouTube Music on Discord

  Published:2021/5/19/Updated:2025/9/16

  How to show the song playing in YouTube Music on Discord, similar to Spotify

  • YouTube
  • Discord
• 💸

  How My Realized Losses from Margin Trading Exceeded 2 Million Yen

  Published:2025/5/2

  How I messed up with a margin short sale of Kobayashi Pharmaceutical (4967).

  • Stock Investing
  • Misc
• 🎬

  Recreating Twitter's old video clip feature as a Chrome extension

  Published:2025/5/2

  I missed old Twitter's video clipping feature, so I rebuilt it as a Chrome extension for X.com. I aimed to keep video processing entirely in the browser with ffmpeg.wasm and WebCodecs, but attaching the result directly to X's post composer was a real struggle.

  • Google Chrome Extensions
  • X (ex-Twitter)
  • Indie Development
  • JavaScript
  • Misc
• 📜

  Follow This and You Can Pass: My AWS Certified DevOps Engineer - Professional (DOP-C02) Exam Experience

  Published:2025/3/26

  I successfully passed the AWS Certified DevOps Engineer - Professional (DOP-C02) exam, so I’m sharing my experience.

  • AWS
  • Certifications
• ⚖

  The Best Conditions I Settled On for Moving After Four Years of Remote Work

  Published:2023/12/5/Updated:2024/12/20

  After looking at a huge number of listings, I have narrowed down the conditions I will not compromise on for a remote-work room. This is a checklist for people who spend a lot of time at home, covering party-wall soundproofing, fiber to the room, electrical capacity, air conditioner age, and more.

  • Moving
  • Misc