Atsushi Nagase

A Hanafuda Koi-Koi App for Apple Platforms

Sat, 03 Oct 2026 06:00:00 +0900

I’ve released Koikoi, an app for playing the hanafuda card game Koi-Koi on iPhone / iPad / Mac / Apple Vision Pro.

There are no ads and no in-app purchases, and it plays offline.

An MCP Server That Bridges a Resident Claude Code Session to Slack

Mon, 24 Aug 2026 02:00:00 +0900

I released slack-bridge-mcp-server, an MCP server that bridges a resident Claude Code session on my Mac to a Slack channel.

I send a message from Slack, the local session picks it up, does the work, and replies where I sent it.

asc-slack-notifier: App Store Connect Review Status in Slack

Fri, 14 Aug 2026 09:00:00 +0900

asc-slack-notifier is a server I built that receives App Store Connect webhooks and posts review status and build events to Slack.

google-mcp-server: Read and Write Google Workspace from LLMs

Wed, 12 Aug 2026 09:00:00 +0900

google-mcp-server is an MCP server I built that lets Claude and other MCP clients read and write Google Calendar, Drive, Gmail, Sheets, Docs, and Slides.

It’s a single Go binary, installable via Homebrew:

brew tap ngs/tap
brew install google-mcp-server

Shiomi: A Simple Tide Chart App

Tue, 28 Jul 2026 08:00:00 +0900

I’ve released Shiomi, a tide chart app that runs on iPhone / iPad / Mac / Apple Vision Pro / Apple Watch. “Shiomi” (潮見) is Japanese for “tide watching”.

It’s free, with no ads and no in-app purchases.

App Store / Website

What makes it different

Unlike most existing tide apps, Shiomi downloads the harmonic constants for a location — the parameters of the tidal constituents at that latitude and longitude — and stores them in the app. Tide predictions are then computed entirely on device, with no network requests, so it stays fast and responsive offline or out in the field with poor reception.

Modelmap Analyzer Update

Wed, 01 Jul 2026 05:00:00 +0900

A long-overdue update to Modelmap Analyzer, which I’ve been working on since 2019.

Color Recipes: A Simple Color-Scheme Collection

Tue, 23 Jun 2026 09:00:00 +0900

I’ve published color.recipes, a color-scheme collection you can filter by tag.

Schemes you like can be downloaded or copied in various formats.

The schemes are managed in a public GitHub repository, so any combination that’s missing you can make yourself and add via a PR.

A URL Shortener on the Cloudflare Workers Free Plan, Managed with Terraform

Sat, 13 Jun 2026 00:00:00 +0900

I’ve published terraform-cloudflare-url-shortener, a Terraform module that deploys a tiny URL shortener running entirely on the Cloudflare Workers free plan. Short links are defined declaratively as a Terraform map and baked into the Worker script — no KV namespace, no database, no paid features required.

The module is available on the Terraform Registry as ngs/url-shortener/cloudflare.

Scrapmd - the Markdown formatted Webpage Scrapbook

Wed, 17 Jun 2020 00:00:00 +0900

I’ve published initial version of Scrapmd, an app that clips webpage content into iCloud Drive with Markdown formatted article body and embedded images.

CI2Go for macOS

Fri, 15 May 2020 00:00:00 +0900

I’ve published CI2Go the CircleCI client for macOS by porting existing iOS app using Mac Catalyst.

Both iOS and macOS versions are available on App Store in same URL.

Product website: ci2go.app

Go Release Binary GitHub Action

Fri, 08 Feb 2019 21:00:00 +0900

I’ve published Go Release Binary Action on GitHub Marketplace.

Go Release Binary Action on GitHub Marketplace

This GitHub Action builds and uploads Go build artifacts as Release Artifacts automatically when Release was created on GitHub repository.

Import AWS credentials.csv to 1Password using aws1pif

Thu, 07 Feb 2019 21:00:00 +0900

I’ve just open-sourced aws1pif, a command line tool that converts AWS credentials.csv to 1Password .1pif file format

ngs/aws1pif

CI2Go Today widget support

Sun, 08 Jul 2018 09:00:00 +0900

I’ve just released version 2.1.0 of CI2Go, the CircleCI client for iPhone and iPad.

v2.1.0 contains the following:

Today widget
SSH connect
Delete local artifacts
Open application by URL

Coveralls plugin for fastlane

Sat, 07 Jul 2018 23:59:00 +0900

I’ve just published a fastlane plugin that sends Xcode code coverage to Coveralls and its depending library xccoveralls that also works as standalone command line tool.

CI2Go version 2

Mon, 02 Jul 2018 09:20:00 +0900

I’ve just released major updated version 2.0.0 of CI2Go, the CircleCI client for iPhone and iPad.

V2 contains the following updates.

Wiplock - Protect main branch from in-progress branches

Fri, 23 Sep 2016 02:00:00 +0900

TL;DR

I released Wiplock that protects main branch from pull requests that contains WIP in the title or incompleted tasks.

https://wiplock.com

Wiplock is an OSS built with Go and React + Redux. Please take a look if you’re interested in.

https://github.com/ngs/wiplock

Testing Email Delivery in Nightwatch.js End to End test

Thu, 08 Sep 2016 17:00:00 +0900

I’ve published an example Nightwatch.js End to End (E2E) testing project that contains Email delivery testing using Mandrill and RequestBin.

ngs/nightwatch-mail-example on GitHub

This example project tests subscribing and unsubscribing Hacker News Letter user flow.

Hyperterm Tomorrow Themes

Sun, 17 Jul 2016 13:20:00 +0900

I’ve published Hyperterm themes based on Tomorrow Themes.

How to install

npm search hyperterm-tomorrow
$EDITOR ~/.hyperterm.js

PGP encrypted messages for Keybase users in our chat rooms

Sat, 14 May 2016 07:45:00 +0900

I’ve released hubot-keybase, a Hubot script to encrypt messages for Keybase users.

ref: ngs/hubot-keybase on GitHub

Announcing CI2Go v1.3.0

Fri, 25 Mar 2016 19:15:00 +0900

I’ve released v1.3.0 of CI2Go the @circleci client for iOS.

CI2Go on the App Store

Deploy Swift WebApps on Amazon EC2 Container Services (ECS)

Fri, 04 Mar 2016 22:50:00 +0900

TL;DR

Developing Web applications with Swift is pretty fun 🤘

We can run them on Amazon EC2 Container Services and I tried to build light-weight Docker image to deploy more faster.

Here is an example project I made, check this out :point_down:

Real-time Log Support w/CI2Go the @circleci Client for iOS

Fri, 29 Jan 2016 22:15:00 +0900

I've released new version of CI2Go, the @circleci client for iOS that supports real-time log watching.

CI2Go on the App Store

In order to support real-time log watching, I dropped the API Refresh Interval feature from this version.

Generate NSColor / UIColor based on Swift String

Sun, 13 Dec 2015 17:00:00 +0900

I’ve published a Swift library ColorHash, that generates UIColor and NSColor based on given string.

ngs/color-hash.swift

import ColorHash

let str = "こんにちは、世界"
let saturation = CGFloat(0.30)
let lightness = CGFloat(0.70)

ColorHash(str, [saturation], [lightness]).color

This is a Swift port of a JavaScript library Color Hash.

Copy UIColor / NSColor initializer code from Sketch app

Fri, 11 Dec 2015 00:30:00 +0900

I’ve published Copy Swift Code, a Sketch app plugin for generating UIColor and NSColor initializer Swift code from fill color of selected layers.

ngs/sketchplugin-swift-color

Announcing @circleci client for Apple Watch ⌚️

Tue, 30 Jun 2015 13:40:00 +0900

Version 1.1.0 of CI2Go, the CircleCI client for iOS is now available on the AppStore.

CI2Go on the App Store

This update includes WatchKit Extension.

CI2Go v1.0.0 the @circleci Client for iPhone & iPad

Wed, 26 Nov 2014 01:10:00 +0900

I've released a CircleCI client for iPhone & iPad.

CI2Go on the App Store

Apply UIAppearance immediately on the screen

Sun, 26 Oct 2014 21:30:00 +0900

I was looking for how to apply changes made with UIAppearance’s proxy method immediately.

I found a solution in a library UISS, that handles Stylesheets written with JSON format.

Pick assignee for JIRA issues with hubot-jira-lotto

Thu, 24 Jul 2014 10:30:00 +0900

I published a Hubot script to pick assignee for JIRA issues.

ngs/hubot-jira-lotto

npm install --save hubot-jira-lotto

Fetch distributions and invalidate with hubot-cloudfront

Sat, 28 Jun 2014 21:00:00 +0900

I published a Hubot script to fetch Amazon CloudFront distribution list and invalidate objects.

ngs/hubot-cloudfront

npm install --save hubot-cloudfront

TDD Hubot scripts with gulp+mocha

Fri, 13 Jun 2014 12:20:00 +0900

I created 3 Hubot scripts and published to npm, however I worried about that there are no unit tests with them.

So I configured them unit tests with gulp and mocha.

Take cross browser screenshots with hubot-browserstack

Sun, 08 Jun 2014 09:30:00 +0900

I published a Hubot script to take cross browser screenshots with BrowserStack.

me > hubot screenshot me http://www.google.com/
hubot > Started generating screenshots in http://www.browserstack.com/screenshots/d804f186e460dc4f2a30849a9686c3a8c4276c21

To add this script run npm install command in your hubot directory.

npm install --save hubot-browserstack

and add hubot-browserstack to external-scripts.json

["hubot-browserstack"]

For more details, visit GitHub repo: ngs/hubot-browserstack.

GitHub Notifications for Google Chrome

Sat, 07 Jun 2014 06:00:00 +0900

I created a chrome extension to check GitHub Notifications in toolbar icon.

This displays unread count and lists unread notifications in popup.

GitHub Repository: ngs/github-notifications-crx

Abort Capistrano 2 deployment if remote is dirty

Sun, 11 May 2014 19:00:00 +0900

I configured Capistrano 2 to abort deployment if remote directory is dirty.

Because uncommited changes in remote directory will cause degrade.

# Of course, modifying source code in remote directory is bad, but sometimes we need to do it.

Exporting and importing iTerm 2 Color Schemes

Mon, 05 May 2014 14:00:00 +0900

I started to manage stuffs with dotfiles git repository instead of Boxen.

I managed iTerm 2 color schemes with puppet-iterm2 modules, that was very useful.

Universal Code support for middleman-google-analytics

Wed, 16 Apr 2014 10:00:00 +0900

As Google announced, Universal Analytics became out of beta.

This blog is using middleman-google-analytics to embed Google Analytics code, so I need to paste the snippet or modify the extension to use Universal Analytics.

The extension helped me a lot, so I started improve that and sent pull requests.

middleman-ogp

Sun, 13 Apr 2014 02:20:00 +0900

I released an OpenGraph Protocol helper extension for Middleman.

ngs/middleman-ogp on GitHub

In your Gemfile

gem 'middleman-ogp'

Generating JavaScript code to arrange elements to be same with specified HTML or element using jQuery Element Diff

Sun, 01 Sep 2013 12:00:00 +0900

jQuery Element Diff Plugin is a plugin to generate JavaScript code to arrange elements to be same.

Generating unique selector with jQuery Selectorator

Sun, 18 Aug 2013 12:00:00 +0900

jQuery Selectorator Plugin is a plugin to generate unique selector from jQuery object.

$('element').getSelector()

Set options.ignore to ignore classes, ids, names:

$('element').getSelector({ ignore: { classes: ['ui-droppable'] } })

Twitter Bootstrap theme for RDoc

Sun, 20 Jan 2013 12:00:00 +0900

I created a RDoc Generator with Bootstrap forked from Hanna Nouveau.

http://ngs.github.io/hanna-bootstrap/

Hanna Bootstrap is available from RubyGems.

gem install hanna-bootstrap

Or git-clone from the repo if you would.

git clone git://github.com/ngs/hanna-bootstrap.git

The templates of this generator are written in HAML, SASS, CoffeeScript.

You can customize your favorite Bootstrap based theme easily. Enjoy!

Using blink(1) as RSpec formatter

Wed, 19 Dec 2012 06:00:00 +0900

I created Ruby library for blink(1) that wraps official blink1-lib C interface.

This video shows runnning RSpec using blink(1) as formatter, shows current status with LED color.

Both are available on RubyGems

gem install rb-blink1
gem install blink1-formatter

GitHub: rb-blink1, blink1-formatter

Evernote SDK for Mac: Async requests and file attachment support

Thu, 22 Nov 2012 06:00:00 +0900

Current HEAD of Evernote SDK for Mac OS X does not support async requests but the iOS SDK does.

So I ported modern Objective-C code (means non-thrift) from the iOS SDK.

ngs/evernote-sdk-mac

This version enables note creation very easy.

Released EverDesktop

Thu, 15 Nov 2012 20:00:00 +0900

I’ve just released EverDesktop.

EverDesktop is a small Mac application for clipping files on your Desktop to Evernote, allows you to make tidy your Mac from status bar icon.

Open Graph protocol tag helper for nanoc

Sat, 03 Nov 2012 07:00:00 +0900

I’ve created Open Graph protocol tag helper for nanoc to build my corporate site.

To use this helper:

Download Ruby code
Place it to lib/nanoc/helpers/ on your nanoc project.
Add require 'nanoc/helpers/og_tags' to lib/default.rb.
Now you can use og_tag helper in your templates. For more details see the spec or trace my haml template.

iGist v1.2 - The Gist Client for iPhone, iPad

Wed, 03 Oct 2012 00:00:00 +0900

I just released new version of iGist - The Gist Client

I rebuilt the app for iOS 6, optimized for iPhone 5's 4 inch screen and supported Share on Facebook.

This requires iOS 6 or later, supports both iPhone and iPad.

Create Events on Google Calendar with Git Commit

Fri, 31 Aug 2012 12:00:00 +0900

To track colleagues' work or let colleagues track my work, we started using Google Calendar with writing Git Commits as events.

Generating Objective-C Literals from JSON

Thu, 26 Jul 2012 12:00:00 +0900

The modern syntaxes for NSDictionary, NSArray, NSNumber are supported from Xcode 4.4. To use this easily for testing, I customized JSON#stringify method ported from JSON2.js.

With node.js, the script can convert JSON from STDIN.

Also in browser, this works with stripping lines under if(process) scope.

Released Evernote Plugin for Coda 2

Sun, 17 Jun 2012 18:00:00 +0900

This plug-in allows you to clip snippets and rendered HTML from Markdown to Evernote.

http://ngs.github.com/evernote-codaplugin

Released Creole Plugin for Coda 2

Fri, 25 May 2012 20:00:00 +0900

This plug-in allows you to preview and generate HTML from Creole wiki documents.

http://ngs.github.com/creole-codaplugin

Released Markdown Plugin for Coda 2

Fri, 25 May 2012 18:00:00 +0900

This plug-in allows you to preview and generate HTML from Markdown wiki documents.

http://ngs.github.com/markdown-codaplugin

Debugging Coda Plug-In with LLDB

Fri, 25 May 2012 12:00:00 +0900

Open Edit Scheme window (⌘<).
Select Run pane from side bar.
In Info tab, select Coda 2.app from Executable dropdown.
Click the OK button to close the window.
Select your your plug-in target.
Select Build Settings tab, click Add Build Setting, select Add User-Defined Setting and set name as INSTALL_BUNDLE, value as 1 for Debug configuration.
Switch to Build Phase tab, click Add Build Phase button and select Add Run Script
Copy and paste the script bellow.

Now you can debug with your LLDB console, enjoy!

Released Gist Plugin for Coda 2

Wed, 23 May 2012 18:00:00 +0900

This plug-in allows you to create public and private gists from current active document.

http://ngs.github.com/gist-codaplugin

Migrating Coda modes to Coda 2

Wed, 23 May 2012 11:51:00 +0900

Coda 1.x modes are not compatible with Coda 2.

This is how to migrate Coda 1.x modes to Coda 2.

jquery-rails confirmation with Bootstrap

Fri, 20 Apr 2012 02:15:00 +0900

In default, jquery-rails prompts with native JavaScript confirm. That’s sucks.

So I overrode $.rails.fire method to show Bootstrap style modal instead.

Released iGist - The Gist Client for iPhone, iPad

Thu, 19 Apr 2012 12:00:00 +0900

About Atsushi Nagase

Mon, 01 Jan 0001 00:00:00 +0000

Hello, I am a software developer based in Tokyo, Japan.

I’m focusing on developing softwares for Desktop, Mobile and Web.

Current positions are Co-Founder, CEO, Software Developer at instance0, inc., Director and CTO at enkake, Inc., Software Engineer at Life is Tech, Inc.. Originally started my career as graphic designer, founded a small software house LittleApps Inc., experienced several startup companies from founding phase.

I love Gadgets, Road cycling, Running, Fishing, Driving, Music, Scale Modeling, 3 kids and 1 wife.

Privacy Policy

Mon, 01 Jan 0001 00:00:00 +0000

This privacy policy covers the ngs.io website and the software applications distributed by Atsushi Nagase (“I”, “me”), including open-source tools such as Google MCP Server and Slack Bridge MCP Server (collectively, “the Apps”).

Last updated: August 23, 2026

The website

ngs.io is a static website. It has no user accounts, no forms, and does not itself collect or store personal information. It is hosted on GitHub Pages, whose operator may collect standard server logs (such as IP addresses) as described in the GitHub Privacy Statement.

Terms of Service

Mon, 01 Jan 0001 00:00:00 +0000

These terms apply to the software applications distributed by Atsushi Nagase (“I”, “me”), including open-source tools such as Google MCP Server and Slack Bridge MCP Server (collectively, “the Apps”).

Last updated: August 23, 2026

License

The Apps are open-source software, provided under the license stated in each project’s repository (typically the MIT License). The license text in the repository governs your rights to use, copy, modify, and distribute the software.

No warranty

The Apps are provided “as is”, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. You use them at your own risk.

Atsushi Nagase

A Hanafuda Koi-Koi App for Apple Platforms

An MCP Server That Bridges a Resident Claude Code Session to Slack

asc-slack-notifier: App Store Connect Review Status in Slack

google-mcp-server: Read and Write Google Workspace from LLMs

Shiomi: A Simple Tide Chart App

What makes it different

Modelmap Analyzer Update

Color Recipes: A Simple Color-Scheme Collection

A URL Shortener on the Cloudflare Workers Free Plan, Managed with Terraform

Scrapmd - the Markdown formatted Webpage Scrapbook

CI2Go for macOS

Go Release Binary GitHub Action

Import AWS credentials.csv to 1Password using aws1pif

CI2Go Today widget support

Coveralls plugin for fastlane

CI2Go version 2

Wiplock - Protect main branch from in-progress branches

TL;DR

Testing Email Delivery in Nightwatch.js End to End test

Hyperterm Tomorrow Themes

How to install

PGP encrypted messages for Keybase users in our chat rooms

Announcing CI2Go v1.3.0

Deploy Swift WebApps on Amazon EC2 Container Services (ECS)

TL;DR

Real-time Log Support w/CI2Go the @circleci Client for iOS

Generate NSColor / UIColor based on Swift String

Copy UIColor / NSColor initializer code from Sketch app

Announcing @circleci client for Apple Watch ⌚️

CI2Go v1.0.0 the @circleci Client for iPhone & iPad

Apply UIAppearance immediately on the screen

Pick assignee for JIRA issues with hubot-jira-lotto

Fetch distributions and invalidate with hubot-cloudfront

TDD Hubot scripts with gulp+mocha

Take cross browser screenshots with hubot-browserstack

GitHub Notifications for Google Chrome

Abort Capistrano 2 deployment if remote is dirty

Similar Articles on middleman-blog

Exporting and importing iTerm 2 Color Schemes

Universal Code support for middleman-google-analytics

middleman-ogp

Generating JavaScript code to arrange elements to be same with specified HTML or element using jQuery Element Diff

Generating unique selector with jQuery Selectorator

Twitter Bootstrap theme for RDoc

Using blink(1) as RSpec formatter

Evernote SDK for Mac: Async requests and file attachment support

Released EverDesktop

Open Graph protocol tag helper for nanoc

iGist v1.2 - The Gist Client for iPhone, iPad

Create Events on Google Calendar with Git Commit

Generating Objective-C Literals from JSON

Released Evernote Plugin for Coda 2

Released Creole Plugin for Coda 2

Released Markdown Plugin for Coda 2

Debugging Coda Plug-In with LLDB

Released Gist Plugin for Coda 2

Migrating Coda modes to Coda 2

jquery-rails confirmation with Bootstrap

Released iGist - The Gist Client for iPhone, iPad

About Atsushi Nagase

Privacy Policy

The website

Terms of Service

License

No warranty