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Katz Sakai

Hands-on CTO & Architect | System Optimization, Automation & Video Tech | Turning complexity into clarity.

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How We Cut Rails on GKE Costs by 60%: The "Efficiency First" Roadmap

How We Cut Rails on GKE Costs by 60%: The "Efficiency First" Roadmap

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11 min read
Non-native English is my hidden strength as a tech blogger

Non-native English is my hidden strength as a tech blogger

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5 min read
Behind the Streams: Live at Netflix — 2025–10–22 Tokyo Video Tech #10 Session 2 Report

Behind the Streams: Live at Netflix — 2025–10–22 Tokyo Video Tech #10 Session 2 Report

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7 min read
Live Streaming at "Spring Festival in Tokyo" — 2025–10–22 Tokyo Video Tech #10 Session 1 Report

Live Streaming at "Spring Festival in Tokyo" — 2025–10–22 Tokyo Video Tech #10 Session 1 Report

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6 min read
IIJ and Netflix Talk Live Streaming at Tokyo Video Tech #10 (Seminar Report)

IIJ and Netflix Talk Live Streaming at Tokyo Video Tech #10 (Seminar Report)

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4 min read
OpenSSL Engine API Explained: Connecting Google Cloud KMS, YubiKey, and More

OpenSSL Engine API Explained: Connecting Google Cloud KMS, YubiKey, and More

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2 min read
Why Rails App Memory Bloat Happens: Causes and Solutions (2025 Edition)

Why Rails App Memory Bloat Happens: Causes and Solutions (2025 Edition)

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5 min read
Building a Cost-Effective Windows Code Signing Pipeline with Sectigo, Google Cloud KMS, and GitHub Actions

Building a Cost-Effective Windows Code Signing Pipeline with Sectigo, Google Cloud KMS, and GitHub Actions

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9 min read
The Missing Guide to Windows Code Signing in CI/CD (GitHub Actions Edition)

The Missing Guide to Windows Code Signing in CI/CD (GitHub Actions Edition)

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5 min read
Why Rails App Memory Bloat Happens: Causes and Solutions (and How I Cut It by 20%)

Why Rails App Memory Bloat Happens: Causes and Solutions (and How I Cut It by 20%)

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5 min read
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