KINTOテクノロジーズ の技術ブログ
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Pull Request Options on GitHub and Pitfalls
2025/02/12
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This article is the entry for day 13 in the KINTO Technologies Advent Calendar 2024 🎅🎄 Introduction Hello. I am ITOYU, a front-end developer in the New Car Subscription Development Group of the KINTO ONE Development Division. Engineers, are you using GitHub? At KINTO Technologies we do too! We rely on GitHub's Pull Request feature to review and merge code. When merging, you have several options to choose from—did you know that? In this article, I'll explain the differences betwee
What are UUIDs and which version should you use?
2025/02/12
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What are UUIDs and which version should you use? Recently, we had to respond to an incident: a service was down because of duplicate keys in its database. My team and I were scratching our heads because these were UUIDs - you know, those supposedly 'unique' identifiers. How could we have duplicates? Turns out the issues were caused by the service trying to add the same event twice, not that the same UUID was generated twice. This incident got me thinking about UUIDs. What they are? How a
KINTOテクノロジーズの開発組織を強くしたい Engineering Office のご紹介
2025/02/12
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KTC の Engineering Office について 2025年1月、KINTOテクノロジーズ（以下 KTC ）では新たに「Engineering Office」を設立しました。 この記事では社内周知も兼ねて Engineering Office の取り組みについて紹介します。 やりたい、やっていること 我々のシンプルな目的は「KINTO テクノロジーズの開発組織としての力を高めること」です。これを中長期で実現していけるよう、新しいケイパ
Mind-Blown! Tech Blog Is About Writing What Happens
2025/02/10
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Hello, this is HOKA from the Manabi-no-Michi-no-Eki (Learning Roadside Station) team. The Manabi-no-Michi-no-Eki team functioned a bit like a club activity, where we all worked on both our main jobs and this project during office hours. But this fall (September?), we officially joined the Developer Relations Group! For more details, check out this blog ↓↓ https://blog.kinto-technologies.com/posts/2024-12-03-the-next-goal/ Since we joined the Development Relations Group, we figured, why not c
Hello, Android Car App!
2025/02/07
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This article is the entry for day 5 in the KINTO Technologies Advent Calendar 2024 🎅🎄 I'm Onuma, an Android engineer in the Mobile Development Group at KINTO Technologies. I primarily work on developing the My Route , a mobility service app. In this article, I'll guide you through the process of building Android Automotive OS and developing in-vehicle apps, including both Android Automotive and Android Auto applications. Running Android Automotive OS on a Raspberry Pi What is Andro
Continuous Delivery of Kubernetes Applications Using Only GitHub Actions
2025/02/06
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Continuous Delivery of Kubernetes Applications Using Only GitHub Actions Hello. My name is Narazaki, and I work in the Toyota Woven City Payment Solution Development Group. Our team is responsible for developing the payment infrastructure application for Woven by Toyota at Toyota Woven City . We build cross-functional payment solutions, covering everything from the backend to the web front end and mobile applications. The payment backend runs on Kubernetes and is developed using various cloud-na
When We Put Compose on Top of BottomSheetDialogFragment, Anchoring a Button to the Bottom Proved Harder Than Expected
2025/02/04
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This article is part of day 6 of KINTO Technologies Advent Calendar 2024 . 🎅🎄 Introduction Merry Christmas 🔔. I am Romie ( @Romie_ktc ) from Osaka Tech Lab, where I work on Android-side development for the my route app in the Mobile App Development Group. In the my route Android team, we are currently switching the UI implementation from XML over to Jetpack Compose (hereinafter, Compose). However, since we cannot refactor everything all in one go, there will inevitably be situations whe
Rebuild Broker Architecture
2025/02/04
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KINTO ID Platformチームの Xu Huang です。数年前から複数の国にユーザー認証認可システム（略称UserPool）を提供し、Brokerモデルを採用して複数地域のUserpoolを繋ぎ、お互いに認証認可情報を共有できるアーキテクチャを構築して運用していました。昨年からコスト削減活動の一環としてアーキテクチャの設計を見直し、移行を行いましたので、その変更内容について紹介したい
Azure AI FoundryでDeep Seek R1を試す
2025/02/03
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こんにちは！ KINTOテクノロジーズ（以下、KTC）の生成AI活用PJTで生成AIエバンジェリストをしている和田( @cognac_n )です。 Azure AI Foundryを用いてDeepSeek R1を試してみた 1. はじめに 最近、大規模言語モデル（LLM）の進化がめざましく、さまざまな企業が独自のLLMを発表しています。その中でも注目を集めているのが、中国のAI企業DeepSeekが開発した DeepSeek R1 です。 2025年1月30日
The Challenge of Bridging "Future-Focused Research” and “Technologies Needed Today”
2025/02/03
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Introduction Hello, I’m Koji Nishiguchi, Manager of Analysis Group at KTC Data Analysis Division. Exploring how future-focused research and technology development can address real-world challenges is a key driver of innovation. However, a disconnect often arises between researchers and businesses regarding "research aimed at future needs" and "technologies ready for immediate on-site application." This gap makes it difficult for both parties to collaborate effectively. In t
How the SRE Team’s Mission and Vision Were Decided
2025/01/31
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Introduction Hello, I am Osanai, the leader of the SRE Team in the Platform Group at KINTO Technologies (hereinafter, KTC). In this article, I will discuss how we developed the SRE Team’s mission and vision. If you’re only interested in the finalized mission, feel free to skip directly to here . Why Did We Decide on a Mission and Vision? Three key factors influenced our decision to establish a mission and vision this time. 1. A suggestion from a team member The SRE Team was established in Ja
iOSDC Japan 2024で感じた学びと気づき
2025/01/30
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はじめに こんにちは！iOSエンジニアのViacheslav Voronaです。今年の8月に東京で開催されたiOS開発者向けカンファレンス iOSDC Japan 2024 に参加しました。 セッションがほとんど日本語で行われるカンファレンスには初めて参加したので、少し緊張していましたが、実際に参加してみると、思ったよりもスムーズに理解できました。コードスニペットを見たり、自分がある程度理
Flutter Development: Designing a QR Code Border with CustomPaint and Path
2025/01/29
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This article is part of day 3 of KINTO Technologies Advent Calendar 2024 .🎅🎄 I am Somi, a Flutter application developer at KINTO Technologies (hereinafter, KTC). Flutter is an appealing framework that enables you to construct a diverse range of UIs independently of the platform. In particular, with CustomPaint, you can easily produce intricate designs that would be difficult to achieve with the basic widgets alone. Recently, when implementing a QR code recognition screen, an issue arose wi
[Michi-no-eki series of learning] We created a super exciting Slack bot "Manabyi"
2025/01/28
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This article is part of day 4 of KINTO Technologies Advent Calendar 2024 Merry Christmas ✌️ Ryomm, who works on developing My Route (iOS) at KINTO Technologies (referred to as KTC), is stepping into a new role this time! Allow me to introduce "Manabyi," an incredibly exciting Slack bot created in collaboration with the Michi-no-eki project, as I take on the role of a phantom bot craftsman. What is manabyi It's an incredibly exciting Slack bot designed for gathering information
Reflecting on Developers Summit 2024 KANSAI
2025/01/27
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Introduction Hello! I am high-g ( @high_g_engineer ) from the New Car Subscription Development Group at the Osaka Tech Lab. In this article, I reflect on the Developers Summit 2024 KANSAI, held on September 18, 2024. What Is Dev Summit KANSAI? The original Developers Summit (hereinafter, Dev Summit) is a conference-type event for software developers that has been held annually in Tokyo and online since 2003. Dev Summit KANSAI has been held since 2011 as a spin-off event of that, and is a much-lo