yoshi-taka sre
ask-yoshi-taka.bsky.social
yoshi-taka sre
@ask-yoshi-taka.bsky.social
🔗 https://ask-yoshi-taka.medium.com/

気合と理論で⟹安全工学/Safety II/ICS/Cognitive System/成人教育/Enabling Team/Cloud Finance/言語哲学/因果性
SaaS Tech DD/PMIのお問い合わせ歓迎
Pinned
How Busy Engineers Can Reduce Datadog Costs with Actionable Tips

ask-yoshi-taka.medium.com/efficient-wa...

🪵 Optimize Log Volume

Suppress Lambda START/END Logs
Lambda automatically generates START/END logs, but they provide minimal value.

1/
How Busy Engineers Can Reduce Datadog Costs with Actionable Tips
Feeling the pinch of rising Datadog expenses?
ask-yoshi-taka.medium.com
In Python 3.14, io.DEFAULT_BUFFER_SIZE was bumped to 128 KiB. Love this change for I/O performance.

github.com/python/cpyth...
November 17, 2025 at 4:23 PM
November 15, 2025 at 5:54 AM
It seems people are often more hesitant to change development tooling than production code, even when the change is small.
It does add a bit of extra work, after all.
That’s why the development environment in a repository can stay unchanged for a surprisingly long time.
November 15, 2025 at 5:23 AM
python 3.14 lambda
November 11, 2025 at 4:18 PM
Looks like Python 3.14 support for Lambda quietly became available in CDK.
github.com/aws/aws-cdk/...

#aws
Release v2.222.0 · aws/aws-cdk
⚠ BREAKING CHANGES bedrock-agentcore: The signature of RuntimeAuthorizerConfiguration.usingCognito() has changed to accept IUserPool and IUserPoolClient constructs instead of string parameters, an...
github.com
November 10, 2025 at 2:34 PM
Pinning package versions is ideal from a security perspective, but it makes module duplication even worse. Tough trade-off.
If you maintain cleanly-separated internal packages, a catalog is pretty much mandatory.
Still, the blast radius grows either way… there’s no easy path.
November 9, 2025 at 3:14 PM
If Bun could generate PDFs, it could replace many use cases that currently rely on Puppeteer.
October 15, 2025 at 2:14 PM
In macOS Tahoe, window resize cursors have become easier to see.
Love this change!
October 4, 2025 at 10:59 AM
In my tests,

`bun run script`

runs faster than

`node --run script`.
September 29, 2025 at 1:01 AM
Reposted by yoshi-taka sre
東京・羽田空港第一ターミナルにあったフードコートがリニューアルされ、イタリア・フィレンツェの有名ジェラート店「Badiani(バディアーニ)」が新規出店していたので伺いました。

店員さんに勧められたのが「ブォンタレンティ」というミルクテイストのジェラートだったのですが、説明を見てみると16世紀頃に誕生したレシピが元、とのことで大変興味をもちました。

後日簡単に調べてみたのですが、16世紀頃の芸術家・ベルナルド・ブオンタレンティが考案したとされ、のちに彼の活動を支援していたメディチ家の計らいで自国以外にもそれシピを伝授したとされます。とても濃厚かつシンプルな味でした。お立ち寄りの際はぜひに。
September 24, 2025 at 1:29 PM
Deno and Bun both support node:util.styleText, so you might not even need chalk anymore.

docs.deno.com/api/node/uti...

bun.sh/reference/no...
styleText - util - Node documentation
In-depth documentation, guides, and reference materials for building secure, high-performance JavaScript and TypeScript applications with Deno
docs.deno.com
September 9, 2025 at 4:39 PM
The e18e project helps reduce the attack surface for supply chain attacks by replacing libraries with native features.

github.com/resend/react...
feat(react-email, preview-server): use `styleText` from `node:util` instead of `chalk` by yoshi-taka · Pull Request #2430 · resend/react-email
https://github.com/es-tooling/module-replacements/blob/main/docs/modules/chalk.md Chalk is no longer needed since Node.js provides sufficient native support. This change simplifies the codebase and...
github.com
September 9, 2025 at 12:14 AM
Aurora has no instance-level deletion protection. With cluster deletion protection, the console blocks removal of the last instance, but the DeleteDBInstance API will still delete it. Cluster-level protection helps, but when using IaC you should be careful.
#aws
August 25, 2025 at 1:16 PM
© Copyright 1980, Amazon Web Services.

docs.aws.amazon.com/cdk/api/v2/p...
August 14, 2025 at 1:45 AM
🙅 cd tab_completion_only_works_if_you_remember_the_prefix
🙆 cd *remember*
August 6, 2025 at 12:42 PM
Zed now shows the publish date of a library version in package.json via tooltip.
August 2, 2025 at 3:33 AM
just published
"How to Reduce AWS Lambda Cold Start Times by Shrinking Deployment Package Size"
ask-yoshi-taka.medium.com/how-to-reduc...
How to Reduce AWS Lambda Cold Start Times by Shrinking Deployment Package Size
AWS Lambda cold starts are a common pain point for engineers.
ask-yoshi-taka.medium.com
July 23, 2025 at 3:34 PM
Looks like you can write code on Medium by typing triple backticks (```).
July 23, 2025 at 2:44 PM
Aurora r8g is now supported across all AZs in Tokyo!
July 22, 2025 at 3:15 AM
Rather than using an LLM to directly build features, you’re often better off building tools with an LLM.
Once the tool is built, it gives you better reproducibility and helps improve quality over time.

Debugging tools are a great use case for this approach.
July 21, 2025 at 12:52 PM
Hi @quinnypig.com,

We’re running into issues with Aurora r8g in ap-northeast-1 (Tokyo). Some AZs aren’t available, and to make matters worse, it’s inconsistent.
July 8, 2025 at 1:21 PM
Which one is legit?

c15t.com
June 12, 2025 at 1:30 PM