Yuichi Sato's Avatar

Yuichi Sato

@yasaichi.com

London-based TypeScript enthusiast, functional programming pragmatist. Co-author of a Ruby on Rails book for intermediate-to-advanced developers. Former CTO at a Japanese public company. Blog: https://blog.yasaichi.com/

53
Followers
68
Following
139
Posts
15.12.2023
Joined
Posts Following

Latest posts by Yuichi Sato @yasaichi.com

Post image

Peer pressure

24.02.2026 22:24 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Entire ยท A new developer platform is coming We are going beyond repositories, building a developer platform where agents and humans can collaborate, interact, and grow. The birth of a new galaxy in this universe draws near.

Iโ€™m wondering when Entire (entire.io) will support Codex, because lately Iโ€™ve been writing code all the time with this, not Claude Code.

21.02.2026 18:42 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
A Language For Agents What programming languages would agents want to program in?

A great essay on โ€œA Language for Agentsโ€ convinced me of this: code must carry its meaning locally, without depending on LSPs or hidden context. Thatโ€™s why Iโ€™m reaching for Go again, not TypeScript. lucumr.pocoo.org/2026/2/9/a-l...

10.02.2026 17:51 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Interacting via the Codex app feels just like discussing with them on Slack or GitHub pull requests, except the conversation flows a few times faster.

05.02.2026 21:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

GPT-5.3-Codex with high reasoning effort is apparently reaching mid-level software engineer performance. Interacting with the model reminds me of collaborating with ex-coworkers at that level.

05.02.2026 21:35 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
XG "HYPNOTIZE" (Live Performance) | Open Mic
XG "HYPNOTIZE" (Live Performance) | Open Mic YouTube video by Genius

Hard to believe this is a live performance โ€ฆ youtu.be/_nBYUmH4z5Q

02.02.2026 21:29 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
It's Odd, But I Can Guess Your Birth Season Based On The Cozy Winter Cafรฉ Food You Choose It's cold outside, the cafรฉ is warm, and everything smells like coffee and baked goods.

Got it, Buzzfeed used my photo in this article: www.buzzfeed.com/alpacagalore...

02.02.2026 17:10 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Must be a JavaScript framework.

01.02.2026 16:01 ๐Ÿ‘ 1 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
More SQL Antipatterns Level up your SQL skills to develop optimized and scalable SQL applications, avoiding the mistakes most developers make.

โ€œMoreโ€ SQL Antipatterns ๐Ÿ˜‚ pragprog.com/titles/bksap...

28.01.2026 22:33 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Shipping at Inference-Speed | Peter Steinberger Why I stopped reading code and started watching it stream by.

This article was helpful for me, especially the โ€œMy Configโ€ section, which encouraged me to re-evaluate Codex and made the difference from Claude very clear. steipete.me/posts/2025/s...

28.01.2026 22:18 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

One spike made me the top 10% contributor in Unsplash on views basis ๐Ÿค”

25.01.2026 08:31 ๐Ÿ‘ 0 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
XG - HYPNOTIZE (Official Music Video)
XG - HYPNOTIZE (Official Music Video) YouTube video by XG

GOT HYPNOTIZED www.youtube.com/watch?v=cUfD...

23.01.2026 19:11 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Tailwind forces me to think about how every UI looks on mobile devices first, which is like training with ๅคงใƒชใƒผใ‚ฐใƒœใƒผใƒซ้คŠๆˆใ‚ฎใƒ–ใ‚น in frontend coding.

22.01.2026 20:17 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

It was hard for me to expect that populism in Japan would kill its bond market, resulting in the end of the yen-US dollar carry trade.

21.01.2026 21:59 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

So lazy that it took 1 month to return the genome sample to the lab while becoming familiar with the UK posting system.

17.01.2026 09:06 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I was successfully able to finish my first property viewing in the UK. Honestly I had been nervous since this morning, it turned out the pretty same as the one I have experienced in Japan before.

16.01.2026 23:15 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Itโ€™s about 0ยฐ outside ๐Ÿฅถ in London

31.12.2025 20:10 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
11 things on Technology Radar Vol.33 that arenโ€™t at all related to AI AI dominated Thoughtworks Technology Radar Vol.33. But we shouldn't ignore the non-AI related technologies. We dive into some of them in this blog post.

This article is just what I've been looking for www.thoughtworks.com/en-gb/insigh...

25.12.2025 08:09 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
IBM to Acquire Confluent IBM to Acquire Confluent

Iโ€™m wondering if Kafka will remain technically independent after this acquisition. www.confluent.io/blog/ibm-to-...

09.12.2025 17:39 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
The Future of AWS CodeCommit | Amazon Web Services Back in July 2024, we announced plans to de-emphasize AWS CodeCommit based on adoption patterns and our assessment of customer needs. We never stopped looking at the data or listening to you, and what...

โ€œCodeCommit is returning to full General Availability, effective immediately.โ€ I find it hard to believe that this decision genuinely reflects feedback they โ€œlistened toโ€ from their customers. aws.amazon.com/blogs/devops...

09.12.2025 08:10 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Reunion Studio Live ้›จไธŠใŒใ‚Š/็ฒ‰้›ช YouTube video by ใƒฌใƒŸใ‚ชใƒญใƒกใƒณ

They've finally come back ๐Ÿ˜ญ www.youtube.com/live/YoJXdfu...

06.12.2025 13:45 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Introducing AWS DevOps Agent (Preview) | Amazon Web Services
Introducing AWS DevOps Agent (Preview) | Amazon Web Services YouTube video by Amazon Web Services

Providing LLM with proper context such as code, telemetry, and deployment data could lead to decreasing Time to Repair โ€” AWS introduced AWS DevOps Agent in re:Invent, its annual event beginning from today. youtu.be/fMQfzwS0prQ

02.12.2025 22:02 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
AWS X-Ray SDKs/Daemon migration to OpenTelemetry | Amazon Web Services AWS X-Ray is transitioning to OpenTelemetry as its primary instrumentation standard for application tracing. OpenTelemetry-based instrumentation solutions are recommended for producing traces from app...

Itโ€™s too late but appreciated: aws.amazon.com/blogs/mt/aws...

02.12.2025 18:11 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Choose Languages for Leverage, Not Loyalty For most of modern software history, choosing a programming language meant navigating limitations.Ecosystems, tooling quality, runtime guarantees, and team experience forced trade-offs. Language decisions were as much about constraints as they were a...

Blogged: blog.yasaichi.com/choose-langu...

01.12.2025 19:52 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

6 years ago today: A man in Wuhan, China starts feeling ill, becoming the first confirmed case of COVID-19

30.11.2025 22:47 ๐Ÿ‘ 445 ๐Ÿ” 183 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 133

My purchases for the Black Friday sale:

- Budget microwave
- Electric portable espresso maker
- Whole genome sequencing kit

30.11.2025 11:30 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
ใƒฌใƒŸใ‚ชใƒญใƒกใƒณ - ๅ—้ขจ
ใƒฌใƒŸใ‚ชใƒญใƒกใƒณ - ๅ—้ขจ YouTube video by ใƒฌใƒŸใ‚ชใƒญใƒกใƒณ

I can't believe it's been 20 years since the first release! It's full of nostalgia: youtu.be/kOrtchvTj6I

29.11.2025 17:37 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
ใ€้€ฃ่ผ‰60ใ€‘ใ‚ฐใƒญใƒผใƒใƒซใงๆˆฆใ†ใŸใ‚ใ€ใƒญใƒณใƒ‰ใƒณๆ‹ ็‚นใฎWASOใธใ€‚ๅพŒ่—คๆฐใŒ่ชžใ‚‹ใ€Œ่ชฒ้กŒ่งฃๆฑบ่€…ใ€ใจใ—ใฆใฎใ‚ญใƒฃใƒชใ‚ขๆˆฆ็•ฅ - TECH Street (ใƒ†ใƒƒใ‚ฏใ‚นใƒˆใƒชใƒผใƒˆ) ใ“ใ‚“ใซใกใฏ๏ผTECH Street็ทจ้›†้ƒจใงใ™ใ€‚ ้€ฃ่ผ‰ไผ็”ปใ€Œใ‚นใƒˆใƒชใƒผใƒˆใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผใ€ใฎ็ฌฌ60ๅผพใ‚’ใŠๅฑŠใ‘ใ—ใพใ™ใ€‚ ใ€Œใ‚นใƒˆใƒชใƒผใƒˆใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผใ€ใจใฏ TECH Streetใ‚ณใƒŸใƒฅใƒ‹ใƒ†ใ‚ฃใƒกใƒณใƒใƒผใŒโ€œไปŠใ€ๆฐ—ใซใชใ‚‹ใƒ’ใƒˆโ€ใ‚’ใƒชใƒฌใƒผๅฝขๅผใงใคใชใใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผไผ็”ปใงใ™ใ€‚ ไผ็”ปใƒซใƒผใƒซ๏ผšใƒปใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผๅฏพ่ฑกใซใฏๅฟ…ใšๆฌกใฎใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผๅฏพ่ฑกใ‚’ๆŒ‡ๅฎšใ—ใฆใ„ใŸใ ใใพใ™ใ€‚ใƒปๆŒ‡ๅฎšใ™ใ‚‹ใ‚คใƒณใ‚ฟใƒ“ใƒฅใƒผๅฏพ่ฑกใฏไปฅไธ‹ใฎ2ใคใฎๆกไปถใฎใ†ใกใฉใกใ‚‰ใ‹ใ‚’ๆบ€ใŸใ—ใฆ...

I relocated to London this summer and joined a startup here. If you're interested in the story behind this move, the interview (Japanese) is here: www.tech-street.jp/entry/2025/1...
Happy to connect with software engineers based in the UK, especially those working in retail or consumer products.

23.11.2025 22:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Exclusive: UK suspends some intelligence sharing with US over boat strike concerns in major break | CNN Politics The United Kingdom is no longer sharing intelligence with the US about suspected drug trafficking vessels in the Caribbean because it does not want to be complicit in US military strikes and believes ...

NEWS: The UK is no longer sharing intelligence with the US about suspected drug trafficking vessels in the Caribbean because it does not want to be complicit in US military strikes and believes the attacks are illegal, sources familiar with the matter told CNN. edition.cnn.com/2025/11/11/p...

11.11.2025 15:06 ๐Ÿ‘ 13735 ๐Ÿ” 4565 ๐Ÿ’ฌ 403 ๐Ÿ“Œ 528
Preview
When You See Abstract Structures, Design Becomes Easier While developing an e-commerce system, I once designed a model called DeliveryDateConstraint to represent delivery restrictions decided by sellers. At first, it looked simple enough: each product had its own shipping rule.But later I realised that cu...

Blogged a new article for the first time in six months: blog.yasaichi.com/when-you-see...

08.11.2025 17:15 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0