Keep PRD (Product Requirements Document) Always Up to Date

A PRD is a roadmap for product development — here's a flow for keeping it always up to date.

Books I Recommend for Engineers Learning About Logistics Systems and Inventory Management

Three recommended books for software engineers who want to learn logistics and inventory management.

[CSS] Sample Code for Switching Images Between Desktop and Mobile

Swap desktop and mobile images with a max-width media query and .pc / .sp classes.

PC cleaning methods and procedures

PC cleaning supplies and a step-by-step procedure — sticker removal, dust, screen — plus labeling rules for company-issued PCs.

Netlify becomes faster depending on root domain and subdomain assignment

Which combination of Netlify DNS or subdomain assignment lets Geo-targeting kick in and make sites faster.

How to build a Strapi demo environment

Two quick paths to try Strapi: the Hosted Demo and a local project via `npx create-strapi-app`.

Rough calculation of Cloud DNS pricing

A rough Cloud DNS pricing estimate for a standard website — about $5 per month.

How to integrate GitHub with Slack to notify a specific channel of everything

Send every GitHub notification for a repo to one Slack channel with /github subscribe and the full option set.

Solution for rbenv/x.x.x/libexec/rbenv: No such file or directory

Fixing the rbenv/x.x.x/libexec/rbenv: No such file or directory error by running rbenv rehash.

Setting up Google Groups to not save email history

Turn off Conversation History in Google Groups and delete existing conversations to stop archiving messages.

Books I read when an engineer became an executive to understand 'legal affairs'

Books an engineer-turned-co-founder read to understand corporate legal affairs and contracts.

Books I read when an engineer became an executive to understand 'labor management'

Books an engineer-turned-co-founder read to understand back-office labor management.

Web Developer Roadmap was helpful for writing engineer recruitment information

How the Web Developer Roadmap helped me write engineer recruitment content.

JavaScript Sample Code to Execute Only in Internet Explorer 11

Sample JavaScript that shows an alert() only in Internet Explorer 11, with a public demo on GitHub.

Books I Read to Gain 'Finance' Knowledge as an Engineer Turned Business Owner

Three books an engineer-turned-co-founder read to build a baseline in startup finance.

Three Ways to Use Slack with External People

Three ways to work with external people in Slack — shared channels, guests, or a separate workspace.

Shopify Uses MySQL as Their Database

Shopify uses MySQL, but you can't connect externally — migration means CSV export or the API.

Shopify's Infrastructure is Google Cloud Platform (GCP)

A quick note that Shopify runs its infrastructure on Google Cloud Platform, sourced from Shopify's engineering blog.

How to Easily Start a Web Server with macOS + Python

Quickly serving files from macOS with `python3 -m http.server 8000` (or the python2 equivalent).

Should Engineers Choose In-house Development or Contract Development for Their First Job?

My personal take on whether new engineers should start at an in-house product company or a contract dev firm.

Sample Code for Internal Page Navigation with <a href="id"> Links Using jQuery Scrollify

Sample code for making <a href="#id"> links navigate within a page using jQuery Scrollify.

Text Wrapping Sample Code with jQuery textillate.js

Sample code verifying text wrapping behavior with jQuery textillate.js.

CSS3 Text Animations with jQuery textillate.js

Sample code for driving CSS3 text animations with jQuery textillate.js.

How to Test Windows 10 + Internet Explorer 11 on macOS [VirtualBox Edition]

Set up a Windows 10 + IE11 testing VM on macOS with VirtualBox.

Batch Remove Exif from JPEG and PNG with ImageMagick

How to batch-remove Exif from JPEG and PNG files using ImageMagick's mogrify -strip command.

jQuery Scrollify Basic Setup Sample Code

Sample code based on jQuery Scrollify's Basic setup, with notes on the setHeights and overflowScroll options.

Single-Line Text Justification and Full-Width Alignment with CSS Only

Use Flexbox's justify-content: space-between to justify a single line of text edge-to-edge in CSS only.

[Bootstrap 4] How to Set Up Navbar as a Fixed Header

Sample code for making a Bootstrap 4 navbar into a fixed header with sticky-top.

How to Set Up Basic Authentication with Firebase Hosting

Set up Basic Authentication for Firebase Hosting by pairing it with Cloud Functions.

How to Output Request and Response in Chrome Extensions

A sample Chrome DevTools extension that logs network request and response payloads via console.log.

Reading Notes: 'Cutting-Edge Business Theory They Don't Teach in Business School'

Reading notes on 'Cutting-Edge Business Theory They Don't Teach in Business School', covering knowledge exploration, transactive memory, and leadership styles.

[oh-my-zsh] How to Fix 'Insecure completion-dependent directories detected'

Resolving oh-my-zsh's Insecure completion-dependent directories warning with chmod 755.

How to Use jQuery Scrollify - Issues & Solutions

Issues I ran into while using jQuery Scrollify and how I solved them.

How to Fix Google Fonts Not Loading or Not Applying Issues

How to fix Google Fonts not loading or font-weight not applying, with the two most common causes.

[Bootstrap 4] Sample Code for Right-Aligning Some nav-items in navbar

Sample code for right-aligning some nav-items in a Bootstrap 4 navbar with mr-auto.

Setting Up Shopify Development Environment

A quick walkthrough of setting up a Shopify development environment, from account creation to the password-protected preview page.

[Node.js] Run Lint Before git commit with husky + lint-staged

Setting up husky and lint-staged with 'npx mrm lint-staged' to run Lint automatically on git pre-commit.

jpegtran Command to Remove Metadata from jpeg and jpg Image Files

Strip Exif metadata from JPEGs with jpegtran on macOS, plus a find + -exec one-liner to batch a directory.

How to Use ImageMagick's mogrify Command for Batch Image Size Conversion

How to batch-resize images with ImageMagick's mogrify command, with a few common examples.

How to Send Emails (Newsletters) with WordPress + MailPoet 3

How to send newsletters with WordPress and MailPoet 3, plus the merits and demerits I ran into using it.

AirPods Pro + Android Low Volume Issue Can Be Solved by Resetting

Resetting AirPods Pro was the quickest fix for the low-volume issue when pairing them with an Android phone.

Review of Smartwatch Xiaomi Mi Band 4

A personal review of the Xiaomi Mi Band 4 after 2.5 years of daily use.

[Flutter] Sample Code for Displaying Images Taken with Camera App

Sample Flutter code that displays an image captured with the camera app using the image_picker package.

Sample Code for Displaying Device Images in Flutter

Sample Flutter code that displays an image picked from the device gallery using image_picker's ImageSource.gallery.

Flutter Sample Code for Displaying Images from Assets

Displaying images from assets in Flutter, and the pubspec.yaml gotcha where assets do not recurse into subdirectories.

Flutter Sample Code for Implementing Camera Functionality Within App

Sample Flutter code that implements in-app camera functionality using the camera and path_provider packages.

Flutter Sample Code with Navigator and Routing Implementation

Sample Flutter code that wires Drawer menu items to other screens using Navigator and named routes.

About the Definition Order of Flutter pubspec.yaml dependencies

A short note on why I like keeping pubspec.yaml dependencies in alphabetical order, with before/after.

Implementing Drawer (Hamburger Menu) in Flutter

Implementing a Drawer (hamburger menu) in Flutter, with a sample pull request.

How to Add Firebase to Flutter App

Adding Firebase to a Flutter app on Android and iOS, with the gotchas I ran into.