viviON Advent Calendar 2025

5 participant

7 followers

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Category：Organization

株式会社viviON

国内最大級の二次元コンテンツ総合ダウンロードサイト「DLsite」をはじめとした、さまざまな総合二次元コンテンツサービスを展開しています。【viviON開発部Twitter】https://twitter.com/viviON_tech　【採用情報はこちら！】https://vivion.jp/recruit/

DLsiteをはじめとしたviviONのサービスが、
日々どんな形で動かされているのかを、年末恒例のノリでわいわい書いていくカレンダーです。

深夜に鳴ったアラートの原因を追いかけた話
重すぎるクエリとにらめっこしたチューニング記録
レガシーコードとほどよく付き合うためのリファクタリング作戦
新しい基盤やツールを入れてみてどうだったか
AIにどこまで仕事を任せていいのか試してみた話

のような「きれいごとだけじゃない裏側」のネタがぽろぽろ出てくる予定です。

DLsiteの裏側がちょっと気になる人も、
同じような悩みを抱えているエンジニアの人も、
年末のおともにゆるっと読んでもらえたらうれしいです。

How to join the calendar

You can join the calendar by selecting an available date and registering the URL of the article you wish to link to. If a slot is available, you can go back to a past date to join!

Series 1

@DiegoHonda
【2025年版】Professional Machine Learning Engineer(PMLE) 合格記：情報が少ない「生成AI分野」をどう攻略するか？
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@shinjiroy
開発案件をサクサク進める裏ワザ - 例外処理の重要性
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@mirei-hayase_vivion
「AI駆動開発、思ったより速くならない問題」を解決する～爆速アジャイルAI駆動のススメ
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@minister_fuji
【ClaudeCode】キミとなら【そうハノイの塔だって】怖くない【Forth】
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@akkt222
Complicated Subsystemチームが事業貢献をするとはどういうことなのか
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use

@DiegoHonda
【2025年版】Professional Machine Learning Engineer(PMLE) 合格記：情報が少ない「生成AI分野」をどう攻略するか？
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@shinjiroy
開発案件をサクサク進める裏ワザ - 例外処理の重要性
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@mirei-hayase_vivion
「AI駆動開発、思ったより速くならない問題」を解決する～爆速アジャイルAI駆動のススメ
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@minister_fuji
【ClaudeCode】キミとなら【そうハノイの塔だって】怖くない【Forth】
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use
@akkt222
Complicated Subsystemチームが事業貢献をするとはどういうことなのか
Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day.
About posting period
Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.)
When you participate, we will assume that you have agreed to the terms of use

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
30	@DiegoHonda 【2025年版】Professional Machine Learning Engineer(PMLE) 合格記：情報が少ない「生成AI分野」をどう攻略するか？ Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use

				@shinjiroy 開発案件をサクサク進める裏ワザ - 例外処理の重要性 Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
		@mirei-hayase_vivion 「AI駆動開発、思ったより速くならない問題」を解決する～爆速アジャイルAI駆動のススメ Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@minister_fuji 【ClaudeCode】キミとなら【そうハノイの塔だって】怖くない【Forth】 Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@akkt222 Complicated Subsystemチームが事業貢献をするとはどういうことなのか Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	26	27

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
30	@DiegoHonda 【2025年版】Professional Machine Learning Engineer(PMLE) 合格記：情報が少ない「生成AI分野」をどう攻略するか？ Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use

				@shinjiroy 開発案件をサクサク進める裏ワザ - 例外処理の重要性 Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
		@mirei-hayase_vivion 「AI駆動開発、思ったより速くならない問題」を解決する～爆速アジャイルAI駆動のススメ Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@minister_fuji 【ClaudeCode】キミとなら【そうハノイの塔だって】怖くない【Forth】 Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@akkt222 Complicated Subsystemチームが事業貢献をするとはどういうことなのか Articles registered in the organization calendar can also be registered in other calendars! 🚀 See details here Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after October 31, 2025 can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	26	27

viviON Advent Calendar 2025

株式会社viviON

edit_calendarHow to join the calendar

Series 1

How to join the calendar