Changelog

A lightweight command-line todo manager in Python. No GUI, no syncing — just a CLI utility for managing tasks without leaving the terminal.

A Python CLI tool to batch-convert Canon CR2 RAW files to JPG. Preserves original file timestamps and supports concurrent conversions via a configurable thread count.

A Python CLI utility that converts Apple Music XML library exports into folder-based playlists for USB playback in a Toyota 4Runner.

Using Docker Compose to define and run multi-container microservice applications, with a Redis Commander + Redis example.

An Ansible playbook to provision a fresh macOS installation with developer tools and applications from scratch.

Connecting a remote Java debugger to a Tomcat server instance by configuring JVM startup parameters in the Windows registry.

Using case statements in Bash scripts for handling command-line arguments, with a practical docker-compose wrapper example.

Using AWS Lambda with S3 event triggers to automatically generate image thumbnails — a Python function that listens for S3 put events.

Using Vagrant to build reproducible development environments, with a reference to a working Vagrant + Docker + Docker Compose setup.

A quick reference to Docker-specific terminology — images, containers, Docker Daemon, Docker Client, and Docker Hub.

Using the bitwise AND operator in Java to check whether a number is even or odd — a more efficient alternative to the modulus operation.

A Node.js CLI tool to export DynamoDB table data to CSV or describe table structure — useful for one-off data exports and audits.

A reproducible development environment using Vagrant, VirtualBox, Docker, and docker-compose. Any developer gets an identical environment with a single vagrant up.

Running classic DOS games on Ubuntu using DOSBox and on macOS using Boxer, including auto-mount configuration.

A sandbox HTTP server using Dropwizard to explore Braintree’s payment processing API.

Server-side reCAPTCHA validation using Dropwizard and Google Guice — a learning project exploring dependency injection and bot protection on the JVM.

An AWS Lambda function that automatically generates image thumbnails on S3 upload events using Pillow.

A pointer to an excellent guide on easier web application debugging using the browser’s Command Line API.

Change the default macOS screenshot format from PNG to JPG or other formats using a single Terminal command.

Encrypting and decrypting files on macOS using the openssl command-line tool with AES-256-CBC encryption.

Use the macOS caffeinate command to prevent your Mac from falling asleep during long downloads or uploads.

An overview of useful code linting tools for Java, JavaScript, and Python, including Findbugs, PMD, ESLint, pylint, and more.