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Articles

Articles by the people who built these apps: backstory, progress, learnings, tips.

・

About 8 min read 写真の位置情報（Exif）消しゴム（PrivacyPhoto）

Development stories #個人開発 #AI開発+3

PrivacyPhoto開発記録

zero-dev. jpNovember 6, 20260

AI translationExternal

Tips and know-how #個人開発 #ProductHunt+3

The Product Hunt relaunch was easier than I expected, but there were quite a few "specifications you'd regret not knowing about."

TUNE CODENovember 6, 20260

AI translationAbout 3 min read

Announcements #ヒロメバ #サービス紹介+2

Hiromeba's app and website registrations have surpassed 50 cases.

NntcdNovember 5, 20261

AI translationAbout 4 min read

Technical guides #開発履歴\#セッション管理\+2

Issue #784 - A Blind Spot in AI Development: Reports of Conversation and Development History Loss Discovered Immediately After Publication and Execution

株式会社ArstructNovember 5, 20260

AI translationAbout 4 min read もじもじラジオ

Tips and know-how #雑談 #チャット+1

20 Easy Conversation Topics for First Meetings | Collection of Questions for Text Chat

げんNovember 4, 20263

AI translationAbout 3 min read Ssak：習慣トラッカー

Development stories #読書 #習慣化

Even on days when I can't read for 10 minutes, I want to keep a record of having read at least one page.

SsakNovember 3, 20263

AI translationAbout 6 min read Crewbook — お問い合わせから会計まで、ワンリンクで完結

Tips and know-how #フリーランス #フリーランス法+1

"Administrative Fees" and "Interest" Deductions Also Count as Reductions——Two Fair Trade Commission Recommendations

CrewbookNovember 2, 20263

AI translationAbout 6 min read

Development stories

The rhythm calculator was created for use at the light music club's training camp.

すずかけNovember 1, 20269

AI translationAbout 8 min read

Development stories #music-streaming #personal-project+3

Do you still listen to songs from CDs you bought long ago?

Kazuyuki OtsuNovember 1, 20268

AI translationAbout 3 min read IDEALCUT.ai（アイディアルカット）

Development stories #推し活 #センイル+3

I wanted to complete the "I'd like to create an image for my favorite" in fan activity support on just one site.

IDEALCUT.aiNovember 1, 20261

AI translationAbout 2 min read Miravow · Dream Reading

Tips and know-how #創作Tips #タロット+1

Three-Card Tarot Creative Method for Deepening the Relationship Between Two People

MiravowOctober 31, 20261

AI translationAbout 7 min read

Development stories #筋トレ #ワークアウト+1

I want to record freely. But I hate the hassle. So I created the muscle training app "RENMA" for someone greedy like me.

RIS WorksOctober 30, 20263

AI translationExternal

Development stories

The reason I created infinite matrix calculation

KkeekiOctober 28, 20264

AI translationAbout 2 min read

Announcements #quiet-camera #ui-improvement+1

Aim for the ultimate silent camera.

tomoponzOctober 27, 20269

AI translationAbout 2 min read SecuStudy

Tips and know-how #情報処理安全確保支援士 #資格学習+1

How to use SecuStudy: Confirm terminology and diagrams from 5 past exam questions

業務おじOctober 27, 20266

AI translationAbout 1 min read

Development stories #フェリーゲーム

The reason for creating Shima Convenience Ferry

ししまびんOctober 26, 202611

AI translationAbout 4 min read かえどき - 交換時期・掃除リマインダーアプリ

Development stories

Kaedoki - The Reason I Created a Replacement Timing and Cleaning Reminder App

kaedokiOctober 25, 20263

AI translationAbout 5 min read

Development stories #日記 #ライフログ+3

The reason diaries don't last is because of the "writing." So I created a diary where you don't have to write.

AZ Wave LabOctober 25, 20265

AI translationAbout 4 min read

Development stories

The reason why MapLiver was created

.com MapLiverOctober 25, 20261

AI translationAbout 1 min read

Announcements #fortune-telling-app #android-release+1

Announcement of the Release of the Book of Destiny App

Designart EvitaOctober 25, 20262

AI translationAbout 7 min read Yomu

Announcements #markdown-editor #yomu+3

Updated the Markdown editor "Yomu". Improved split view display and scroll operations.

oka-projectOctober 24, 20267

AI translationExternal

Development stories #Zenn #メモ

Rmemo Development Discussion

HIROOctober 24, 20264

AI translationAbout 12 min read

Development stories #個人開発 #AI+1

I just wanted to touch lots of buttons, but before I knew it, I'd been making a web gacha game for about 4 years.

co heppoOctober 23, 20263

AI translationAbout 2 min read

Response Policy for Technical Issues

LUMINAMIRAOctober 23, 20266

About 8 min read 料理分量らくらく計算（CookScale）

Development stories #コードレビュー #個人開発+3

CookScale開発記録

zero-dev. jpNovember 6, 20260

AI translationAbout 4 min read

Technical guides #Git #データ消失+2

Small Instructions, Big Impact—Issue #78273 Reporting Deletion of Claude Code Source Files

株式会社ArstructNovember 4, 20261

AI translationAbout 2 min read

Announcements #雑談 #チャット+1

Would you like to have a casual chat with just text during the afternoon and evening of 11/3? "Mojimoji Radio" trial gathering time

げんNovember 2, 20264

AI translationAbout 3 min read Crewbook — お問い合わせから会計まで、ワンリンクで完結

Tips and know-how #インボイス #フリーランス+1

How much difference is there in consumption tax owed between the 30% special exception and simplified taxation? Quick reference table by business category

CrewbookOctober 31, 20264

AI translationAbout 6 min read

Development stories #筋トレ #筋トレ記録+3

I want to record freely. But I hate the hassle. That's why we created RENMA for such greedy people.

RIS WorksOctober 28, 20268

AI translationAbout 12 min read VRChat総合検定｜20問15分で知識を試す【無料・合格証書あり】 - oka-vrc旅行記 | VRChatワールド旅行記サイト

Development stories #vrchat #web-app+2

I created an unofficial "VRChat Comprehensive Certification Test" where you can test your knowledge of VRChat.

oka-projectOctober 22, 20262

AI translationAbout 1 min read

【Notice from Management】

LUMINAMIRAOctober 22, 20265

AI translationAbout 4 min read

Technical guides #APIキー管理\#シークレット管理\+2

Although the AI's response appeared normal, an investigation revealed that 2,863 keys, including those of financial institutions, were affected behind the scenes.

株式会社ArstructNovember 2, 20265

AI translationAbout 3 min read

Announcements #雑談 #チャット+1

No voice or face needed. How to play "Mojimoji Radio"

げんNovember 2, 20269

AI translationAbout 4 min read

Technical guides #APIキー管理\#シークレット管理\+2

The Weight of "Authority Granted to AI" as Demonstrated by the Rakuten Mobile Fraudulent Line Contract Incident

株式会社ArstructOctober 31, 20263

AI translationAbout 4 min read

Technical guides #不正アクセス対策\#AI悪用\+2

Is that verification really sufficient? Pre-release checks for learning from creating malware that encrypts files and demands cryptocurrency transfers

株式会社ArstructOctober 30, 20262

AI translationAbout 4 min read

Technical guides #不正アクセス対策\#AI悪用\+2

Recovery is not guaranteed—The lesson left by the possibility of over 7 million members' personal information being leaked

株式会社ArstructOctober 29, 20264

AI translationAbout 4 min read

Technical guides #不正アクセス対策\#AI悪用\+2

Arrested on suspicion of creating ransomware next to convenient automation, is your environment okay?

株式会社ArstructOctober 28, 20261

AI translationAbout 4 min read

Technical guides #不正アクセス対策\#AI悪用\+2

Is that verification really sufficient? Pre-release checks for learning from creating malware that encrypts files and demands cryptocurrency transfers

株式会社ArstructOctober 27, 20260

AI translationAbout 4 min read

Technical guides #不正アクセス対策\#AI悪用\+2

Recovery is not guaranteed—The lesson left by the possibility of over 7 million members' personal information being leaked

株式会社ArstructOctober 26, 20261

AI translationAbout 4 min read

Technical guides #不正アクセス対策 #AI悪用+2

Arrested on suspicion of creating ransomware next to convenient automation, is your environment okay?

株式会社ArstructOctober 25, 20263