How I earn over $750 a month from my unfinished book

I started to sell the pre-release version of my book in April. Here are the numbers 3 months later.

InvoicePrinter 2.2 with breakdowns of items

A while ago, I released a new version of InvoicePrinter, my little library for generating PDF invoices. Here’s what’s new.

CentOS 8 free alternatives

CentOS 8 EOL is around the corner, so it’s time to evaluate and try the alternatives. I prepared a small table for everybody with the basic overview.

Moving ActionCable over to Webpacker

This week, I upgraded a little demo application for my book Deployment from Scratch from Rails 6 to Rails 6.1. Since I showcase WebSockets with ActionCable and Redis, I needed to move the ActionCable CoffeeScript from Sprockets to Webpacker.

Removing assets dependencies from Rails applications for runtime

Rails provides a smooth assets:precompile task to prepare application assets but keeps all required gems for assets generation as a standard part of the generated Gemfile. Let’s see if we can avoid these dependencies for runtime.