Keita Ono

Founder of Geovids — explore YouTube walking/driving videos on an interactive map.
Building in public.
Maps, cities, and web dev.
Based in Japan.

[Keita Ono @dorokei]

I’ve been working on a new project:
Geovids – watch YouTube walking/driving videos synced with an interactive map. Imagine exploring Tokyo, NYC, or Seoul while following the route in real time.

I’m building this in public and will share progress here.

More updates soon!

[Keita Ono @dorokei]

某交通機関APIの件は結構グレー攻めてそうだな、、
許可はもらってないけど、公共性があるからオッケーだと思ってますって感じだった

[Keita Ono @dorokei]

ChatGPTが「私ならこうします。」とか言ってくるの変じゃない？

[Keita Ono @dorokei]

あ、自分のは詰んでるやつだ
「Office 2019 for Mac」が“詰み”。7月13日から編集不可に - PC Watch https://t.co/2Cvl2Cgliy

[まともがわからない黒沢 @MLl6dp]

甲本ヒロトの親子ゲンカ
の話でも読めよ。

[unvalley @unvalley_]

前提、自分のサイトは画像を多く持っているが、作ったばかりでPV数はかなり少ない。OpenNextを使っていたが、R2の画像に対してnext/imageの画像最適化が無駄に有効になっていた。その期間 MetaのAI crawler が /_next/image のURLを死ぬほど叩き、Images Transform が約250万回実行され、死にました

[月陸Online／月刊陸上競技 @Getsuriku]

ロンドンマラソン
男子
S.サウェ🇰🇪が1時間59分30秒！！！！！！！

人類が初めてマラソンで2時間切りを達成！！！！！！

Y.ケジェルチャ🇪🇹も1時間59分41秒！

3位のJ.キプリモも2時間0分28秒！！

[𝕯𝖊𝖛𝕰𝖓𝖓𝖞 @ennycodes]

Backend developers trying to write CSS

[ST-321 @ST_321_JAPAN]

今日の新聞広告

[Keita Ono @dorokei]

I just completed Foundations of Modern Finance I with @edXOnline! https://t.co/CIM1Iji3Tn

[Keita Ono @dorokei]

つまり1mの間隔を開けることができない状況で、時速20キロから30キロ出てる自転車は抜かせない？

[Yahoo!ニュース @YahooNewsTopics]

【車で自転車追い抜き 4月～摘発も】
https://t.co/oRc7XRWH4X

[Keita Ono @dorokei]

逆に安心感のある案件ランキングがしりたいです

[ぬぅ@エンジニア @nu_snsvlog]

エンジニアが「この案件炎上するな〜」と思うランキング👑

1位:仕様が決まってないのに開発が始まる
2位:関係者が多すぎる
3位:進捗報告が毎回「ほとんど大丈夫です」
4位:進捗会議が増え始める
5位:ドキュメントが存在しない

他の炎上予兆も皆んなの経験から教えて😂

[Keita Ono @dorokei]

😮

[Skitzo @theskitzo_]

Easily one of the best sample chop of all time

[Keita Ono @dorokei]

バトルボイジャー思い出したんだけど、分かる人おるんかな

[しえる酸 @HCiel_sub]

ガラスペンみたいな感じで、突き刺したら相手から毛細管現象で血を吸い上げるみたいな剣があったらかっこいいな、ってお散歩してて急に思いました
もうそういうのありそうだな

[Keita Ono @dorokei]

🙌

[Elie Habib @eliehabib]

I vibe-coded this weekend a Bloomberg Terminal for geopolitics, because we're living in special times.
Here's the story:

30 browser tabs. Reuters, USGS, flight trackers, prediction markets, government feeds. All open simultaneously. All the time. Ukraine. Gaza. Taiwan. Sanctions. Supply chains. Everything connected. Nothing correlated.

So I built World Monitor. One dashboard. 20+ live data sources. Real-time correlation.

What it tracks:
- 45+ news feeds ranked by source authority (searchable)
- 220+ military bases, 111 AI datacenters, 88 pipelines, 55 undersea cables
- Live vessel tracking & chokepoint monitoring
- Internet outages, earthquakes, weather alerts
- Prediction markets vs. news velocity gaps... and more.

What you can explore:
- Search news across all feeds instantly
- Click any pipeline, datacenter, or base for details
- Toggle 15+ map layers to spot correlations
- Filter events by time range (1h to 7 days)

What it detects:
- When 3+ sources confirm the same story within 30 mins
- When markets move before news breaks
- When news velocity suddenly doubles
- The "Pentagon Pizza Index" 🍕
- When military planes & vessels density grows & more

Philosophy: Information density > aesthetics. Correlation > accumulation. Wire services > blogs.

Vibe-coded with Claude. Zero frameworks. Open source.

Access at https://t.co/XJ7GSCRheG

The world is more connected than ever. Your monitoring tools should be too.

P.S.: Inspired by @HipCityReg's work

[Keita Ono @dorokei]

Oof… looks like YouTube embeds changed.
Whenever the on-screen controls are visible (paused or playing), the video goes dark/black — which makes map-based geo-mapping way harder. 😭

[Keita Ono @dorokei]

One of my goals with Geovids is to make mapping fun. Ideally, anyone could help map routes for videos they love. Turning “route-mapping” into a hobby instead of a chore.

[Pascio @IAmPascio]

7 places to launch your product:

@ProductHunt - You know this one
@hackernews - Close knit community
@LaunchedIO - Early adopters
@startupbaseio - Early adopters
@beta_page - For tech lovers
@TechPluto - Tech news
@NotionPlaza - Notion marketplace

Did you know any of these?

[Keita Ono @dorokei]

I watch tons of city-walk and drive-cam videos.
But I always wondered:
“Where exactly is this?”
“What route are they following?”
So I built something to answer that question.

[Keita Ono @dorokei]

Mapping exact video timestamps to locations turned out to be harder than expected.

The tricky part is interpolating positions between mapped points while the video plays.

Still not perfectly smooth, but when it clicks, it really feels like walking inside the map.

[Keita Ono @dorokei]

A small preview of the core interaction 👇
The map marker moves perfectly in sync with the YouTube video.
Still rough, but it already feels magical to explore cities this way.