April 30, 2026
Boring cloud architectures that survive growth
Three principles I keep coming back to when teams ask me what their cloud should look like once it stops being a prototype.
- Cloud
- Architecture
- Postgres
- Reliability
ジャーナル
プラットフォームエンジニアリング、AIツール、技術の実践に関するノート。
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April 25, 2026
IAM that scales: human roles, machine roles, blast radius
A practical mental model for designing IAM that survives growth without turning into the team that rubber-stamps wildcards.
- IAM
- Security
- Cloud
- Architecture
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April 22, 2026
Calm AI platforms: shipping intelligence without burning out the room
Three patterns I lean on to bring modern AI into enterprise platforms without turning the team into permanent firefighters.
- AI
- Platform
- Architecture
- Claude
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April 18, 2026
Local AI on a Mac: what fits in 16 GB without lying to yourself
A practical map of which local AI workflows are real and which only look real, on a Mac with 16 GB of unified memory.
- AI
- Local AI
- macOS
- Ollama
- MLX
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April 12, 2026
システムd timers vs cron: when to choose what
A pragmatic decision guide for picking between systemd timers and cron, written from the trenches of running both for years.
- Linux
- systemd
- cron
- Operations
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April 5, 2026
macOS dev environment without the ホームbrew bloat
How I keep a fast, repeatable Mac dev setup without ending up with 600 packages I cannot account for.
- macOS
- ホームbrew
- mise
- Developer 経験
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March 28, 2026
Kubernetes for the resistant: when not to use it
I have run Kubernetes in production for years. Here are the four signals that tell me a team should not be running it yet.
- Kubernetes
- Architecture
- Platform
- Pragmatism