About a year has passed since practicing the Pomodoro Technique with Toggl Track

A one-year retrospective on the Pomodoro Technique with Toggl Track and its scrum benefits.

For beginners learning programming, I recommend specialized engineer training instructors

Why I recommend specialized training instructors over working engineers for programming beginners.

Solution for bundle/gem install rmagick error: Can't find MagickWand.h

Fixed the rmagick MagickWand.h build error by switching to Homebrew's imagemagick@6.

List of disposable email address domains

References for building a disposable email domain blacklist to block throwaway sign-ups.

PocketSEO app for checking domain authority and page authority is convenient

PocketSEO is an unofficial Moz mobile app for checking DA, PA, and backlinks on the go.

108 things to do first when contract development starts

A kickoff checklist for contract dev projects covering tooling, product owner, priorities, and release flow.

How to transfer Heroku app owner permissions to another account

CLI steps for transferring Heroku app ownership, with a Pipeline caveat.

Articles I use for position talk as a git rebase opponent

Quotes I lean on when making the case against git rebase in team discussions.

When Basecamp Payment is Overdue, You Obviously Can't Use It at All...

If a Basecamp renewal payment fails, the account gets frozen and becomes completely unusable.

Steps to Quickly Install Elasticsearch with Docker GUI Tool Kitematic

Steps to spin up an Elasticsearch Docker image quickly with the Kitematic GUI.

Real Engineer Horror Stories ~ HTTP Status Code 0 and curl: (35) SSL connect error

Two engineer horror stories: HTTP Status Code 0 and curl: (35) SSL connect error.

Summary of React Native App Development Case Studies

A roundup of React Native adoption case studies I researched to propose it internally, covering both global and Japanese examples.

[Shippo] Return Labels with Canada Shipping Address Cannot Be Created with USPS but Can with FedEx, UPS

Shippo Canada return labels require FedEx or UPS — USPS cannot originate a Canada shipment.

Shippo Address Validation API Costs 6 Cents for Non-US Shipping Addresses

Shippo now charges $0.06 per non-US address for Address Validation API requests — notification recap.

Redux Development Environment Setup on Rails 5.x + React.js + Webpacker

Adding Redux to a Rails 5.x + Webpacker + React.js environment via yarn add.

Rails 5.x + Webpacker + React.js Development Environment Setup

How I set up a Rails 5.x + Webpacker + React.js development environment, from rails new through hot reload and yarn start.

Google Calendar's 'Daily Agenda' Email Setting Should Be Enabled

How to enable Google Calendar's Daily Agenda email so your schedule arrives at 5 AM each day.

Thinking About When Operating Companies Should Do Contract Development

Why an operating company shouldn't take contract dev during its own service's peak season, using an e-commerce year-end as the example.

Heroku App Restart, Stop, Start Commands

Quick reference for restarting, stopping, and starting a Heroku app from the CLI.

[Linux] Using mktemp Command is Safe for Creating tmp Files

Use mktemp with mv or ln to safely create temporary files on Linux, and gmktemp on macOS for the same behavior.

Considering Alternative Chat Services When Slack is Down Due to Outages ~ Email, Google Chat, Discord, Hipchat

Fallback chat options — email, Google Meet, Discord, Hipchat — after the 2017 Slack outage.

IIJmio Data Option Convenient for Remote Work

IIJmio's Data Option is handy for remote-work tethering — but remember to cancel it to stop monthly charges.

[JavaScript] setTimeout(function(){}, 1) Can Sometimes Result in the Same Time Even When Specifying 1 Millisecond

Even with a 1 ms setTimeout, Date.now() inside the callback can match the caller's value — reproduced in the Node.js REPL.

Configuration Steps to Enable the New Google Calendar Web Version

How to enable the new Google Calendar web version from the G Suite admin console.

[CircleCI 2.0] Rails 5.x + Webpacker Configuration Job Setup Method for Running Rspec Tests

A working config.yml for running Rspec on Rails 5.x + Webpacker on CircleCI 2.0's free plan, with notes on the gotchas.

[Heroku] SendGrid Email Sending Configuration Method for Rails 5.x

Wire up the SendGrid Heroku add-on to Rails 5.x ActionMailer and send a test email from the console.

[CircleCI 2.0] Rails 5.x Fix for bundler: failed to load command: rspec ~ NoMethodError: undefined method `captures' for nil:NilClass Error

Fixing the CircleCI 2.0 rspec captures-nil error on Rails 5.x by dropping the test-split step from config.yml.

[MongoDB] How to Fix "sort stage buffered data usage of x bytes exceeds internal limit of 33554432 bytes" Error

Adding a Mongoose schema index on the sort field cleared the sort stage buffered data limit error.

[Mac] Completely Uninstall Elasticsearch Installed with Homebrew

Fully uninstalling a Homebrew-installed Elasticsearch, including its data and log directories.

[Linux] who Command to Display Currently Logged-in Users

Use who --heading --users to inspect logged-in users, and cross-check stale ssh sessions with the w command.

[Shippo] Additional Charges Will Be Billed When Shipping Fees Paid to USPS Are Insufficient

USPS via Shippo will now bill surcharges when the postage paid is less than the actual shipping cost.

How to Add GitHub Organization to CircleCI

How to add a GitHub Organization to CircleCI via Check permissions and the GitHub app Grant button.

Personal Study Methods and How-To Guide for Network Technology

A self-study guide to networking for app engineers — books, hands-on tips, a troubleshooting checklist, and must-have gear.

crontab Day-of-Week Specification Can Use English Abbreviations Like SUN-SAT in Addition to Numbers 1-7

A note that crontab's day-of-week field accepts SUN-SAT in addition to 1-7, with a field reference table.

Before Engineer Hiring, Consider the Approach of Reducing Work by Terminating Services and Features

Before hiring more engineers, consider sunsetting services and features to shrink the workload first.

[Let's Encrypt] How to Fix certbot renew Error: Could not bind TCP port 443 because it is already in use by another process on this system

Fixing certbot renew's port 443 conflict by using the --nginx plugin option — no Nginx stop, no downtime.

Hiring Plans Should Be Cautious Even After Successful Fundraising

Why hiring plans still need to be cautious after fundraising — spell out the role and its day-one work before interviewing.

[Ruby on Rails] How to Initialize and Reset Database ~ rake db:reset and rake db:migrate:reset

rake db:reset vs rake db:migrate:reset in Rails, and when to reach for each.

Heroku Meetup #18 Connect! Participation Report #herokujp

Trip report from Heroku Meetup #18 Connect! — AWS-to-Heroku migration, Heroku Connect, and Kafka on Heroku.

How to Change YouTube Video Upload Default Privacy Settings

Change YouTube's default upload privacy from Creator Studio so new videos start as Public or Private.

Trello Mac App is Fast and Comfortable, So I Switched from the Web App

The Trello Mac app is fast and comfortable, so a Trello heavy user switched from the web app.

For Batch Image Resizing on Mac, iMage Tools Free App is Recommended

Using the free iMage Tools app to batch-resize photos on macOS before blog uploads.

[HTML] To Hide Table Tag Borders, Specify style="border:none;"

Sample code that removes table borders by setting border:none on table, tbody, tr, and td.

jquery-cookie is No Longer Maintained and Sometimes Doesn't Work, So Use js-cookie

jquery-cookie is no longer maintained and its authors point users to the successor library, js-cookie.

[MacOS] How to Uninstall All Versions of PostgreSQL ~ Homebrew Edition

Using brew uninstall --force to remove every Homebrew-installed PostgreSQL version on macOS, plus cleaning up the data directory.

Cookpad Tech Kitchen #10 〜Product Design Talk〜 Participation Report

A report from Cookpad Tech Kitchen #10, featuring product design talks from Cookpad, Hatena Blog, minne, and AWA.

Is 'Operational acceptance testing (OAT)' Appropriate English for System '動作確認'?

Learning that Operational acceptance testing (OAT) is a decent English equivalent for '動作確認'.

Machine Learning (ML) Recommended Introductory Books Summary

A curated list of introductory machine learning books recommended by engineers at an AI startup, spanning practical, theoretical, and advanced levels.

[WordPress] Google AdSense Ads Not Displaying → Cause Was Fast Velocity Minify Plugin

Tracking down blank WordPress AdSense ads to the Fast Velocity Minify plugin, one cache plugin at a time.

Ruby on Rails + Rspec + Capybara Initial Setup

Set up RSpec and Capybara in Rails 5 and run your first Feature test end-to-end.