Keita Kobayashi
@keita.kbys.me
Doing geospatial development at kotobamedia.com. Born Tokyo, raised US. Living in Yakushima. Writing about our life on the island at https://yakushima.blog
Happy New Year! Here's my annual short blog about last year and what I'm planning on doing this year. keita.blog/2025/2025-in...
2025 in Review
It’s that time of year again to reflect and think about what’s coming up in the future.
This year was an interesting year, both personally and professionally.
Personal We’re approaching our fourth ann...
keita.blog
December 31, 2025 at 9:11 PM
Happy New Year! Here's my annual short blog about last year and what I'm planning on doing this year. keita.blog/2025/2025-in...
I spent the past few days poking around the new MapLibre Tile spec and format. I originally wanted to make some code to generate them from scratch, but I realized that they are much more complicated than I had expected... Instead, I wrote about what I found. keita.blog/2025/maplibr...
#maplibre
#maplibre
Taking a look at MapLibre Tiles (MLT)
日本語版はこちらです
With the release of MapLibre GL JS v5.12.0, MapLibre Tiles (MLT) are now generally accessible to the normal user in a web browser!
This post gives a quick introduction to MapLibre Tiles and...
keita.blog
December 5, 2025 at 2:22 AM
I spent the past few days poking around the new MapLibre Tile spec and format. I originally wanted to make some code to generate them from scratch, but I realized that they are much more complicated than I had expected... Instead, I wrote about what I found. keita.blog/2025/maplibr...
#maplibre
#maplibre
MapLibre Advent Calendar 2025 の5日目記事、公開しました！今回は、「MapLibre Tiles が使えるようになった！遊んでみよう！」という表題ですが、思ったより複雑で遊ぶところまでたどり着けなかった💦
内部構造などを調べたりしました。
qiita.com/sleepy__keit...
#maplibre #mugjp #foss4g
内部構造などを調べたりしました。
qiita.com/sleepy__keit...
#maplibre #mugjp #foss4g
MapLibre Tiles (MLT) が使えるようになった！遊んでみよう！ - Qiita
MapLibre GL JS v5.12.0 で、Mapbox Vector Tile (MVT) と加えて、 MapLibre Tiles (MLT) を使えるようになりました！ 今回の記事では MapLibre Tiles について軽く説明した後に、内部構造も調べてみ...
qiita.com
December 5, 2025 at 1:08 AM
MapLibre Advent Calendar 2025 の5日目記事、公開しました！今回は、「MapLibre Tiles が使えるようになった！遊んでみよう！」という表題ですが、思ったより複雑で遊ぶところまでたどり着けなかった💦
内部構造などを調べたりしました。
qiita.com/sleepy__keit...
#maplibre #mugjp #foss4g
内部構造などを調べたりしました。
qiita.com/sleepy__keit...
#maplibre #mugjp #foss4g
Reposted by Keita Kobayashi
I have published a podcast titled "# 001 Tech & Geospatial Chatter." 🎙️
This is the first episode of my series. 🎉
I plan to distribute this series regularly in the future. Please check it out! (This is a podcast in Japanese.)
open.spotify.com/episode/0EsP...
This is the first episode of my series. 🎉
I plan to distribute this series regularly in the future. Please check it out! (This is a podcast in Japanese.)
open.spotify.com/episode/0EsP...
November 20, 2025 at 1:01 AM
I have published a podcast titled "# 001 Tech & Geospatial Chatter." 🎙️
This is the first episode of my series. 🎉
I plan to distribute this series regularly in the future. Please check it out! (This is a podcast in Japanese.)
open.spotify.com/episode/0EsP...
This is the first episode of my series. 🎉
I plan to distribute this series regularly in the future. Please check it out! (This is a podcast in Japanese.)
open.spotify.com/episode/0EsP...
So, I've been using Windows with WSL as my main work computer for about 1.5 - 2 years now. Before this, I've used Linux natively (Ubuntu) a few times, but before that - completely Mac only. I still use a M1 MacBook as my side machine.
June 15, 2025 at 2:37 AM
So, I've been using Windows with WSL as my main work computer for about 1.5 - 2 years now. Before this, I've used Linux natively (Ubuntu) a few times, but before that - completely Mac only. I still use a M1 MacBook as my side machine.
Using the tool I released yesterday, I made some vector tiles using this data for cross-referencing . tiles.kmproj.com
April 14, 2025 at 9:09 AM
Using the tool I released yesterday, I made some vector tiles using this data for cross-referencing . tiles.kmproj.com
Just released a tool to import administrative areas / subareas collected as part of the census in Japan to PostGIS: github.com/KotobaMedia/...
The census agency only provides this data per prefecture, so it was bothersome to download all 47 prefectures and merge them.. now you can just use the tool!
The census agency only provides this data per prefecture, so it was bothersome to download all 47 prefectures and merge them.. now you can just use the tool!
GitHub - KotobaMedia/jp-estat-to-sql: 国勢調査GISデータをSQLデータベースに取り込む
国勢調査GISデータをSQLデータベースに取り込む. Contribute to KotobaMedia/jp-estat-to-sql development by creating an account on GitHub.
github.com
April 13, 2025 at 8:10 AM
Just released a tool to import administrative areas / subareas collected as part of the census in Japan to PostGIS: github.com/KotobaMedia/...
The census agency only provides this data per prefecture, so it was bothersome to download all 47 prefectures and merge them.. now you can just use the tool!
The census agency only provides this data per prefecture, so it was bothersome to download all 47 prefectures and merge them.. now you can just use the tool!
Going to try being a bit more active over here. Here are some things I've been working on recently.
April 8, 2025 at 1:01 AM
Going to try being a bit more active over here. Here are some things I've been working on recently.
So how's everyone liking Apple Intelligence these days? The only thing I use Siri for is to add stuff to the shopping list (and because we live in Japan, it makes sense to do that in Japanese), so I can't use it yet.
February 8, 2025 at 12:29 AM
So how's everyone liking Apple Intelligence these days? The only thing I use Siri for is to add stuff to the shopping list (and because we live in Japan, it makes sense to do that in Japanese), so I can't use it yet.