The linked GitHub repository is a bit like our "dev" cards deck, but groomed from a single person (Josh Branchaud...
With puma you can have concurrent requests. There are two concepts on how Puma can handle two incoming requests: Workers...
Simplecov is a code coverage tool. This helps you to find out which parts of your application are not tested...
A recent patch level Ruby update caused troubles to some of us as applications started to complain about incompatible gem...
Embedding videos on a website is very easy, add a tag to your source code and it just works...
Because colors improve readability so much. On Ubuntu 18.04 you can install it with sudo apt install grc
Heads up: transparent is not a real color, but black with 0% opacity. In transparent gradients, this adds some gray...
To set a default Node version for new shells, use nvm alias default : nvm alias default 1.2.3
Or: How to avoid and refactor spaghetti code Please note that I tried to keep the examples small. The effects...
This is a personal post-mortem analysis of a project that was mainly build to provide a REST API to...
PostgreSQL and ActiveRecord have a good support for storing dynamic attributes (hashes) in columns of type JSONB. But sometimes you...
Debugging image color profiles is hard. You can't trust your eyes in this matter, as the image rendering depends...
Bundler 2 introduced various incompatibilites und confusing behavior. To add to the confusion, Bundler's behavior changed after the release...
Im using the terminator terminal with the keyboard shortcut Control+Shift+E for splitting the terminal. I got used to...
Install the latest bundler version: gem install bundler Fetching bundler-2.3.5.gem Successfully installed bundler-2.3.5 1 gem installed Update the bundler...
For newer Ubuntu versions we currently need to install the patch level version 1.8.7-p375, otherwise the dev dependencies from...
A primer on vector graphics For rastered image formats like JPG or PNG, each pixel is basically drawn on a...
Fixed #68: The "cucumber" command now fails early when @solo features fail. Added: The "setup" command now prints the db...
Rubygems supports a 2FA for your account. Once enabled you need to provide your personal OTP code for every release...
The Ruby standard lib ships with a YAML Parser called Psych. But serializing and deserializing data seems not as obvious...
Capybara provides execute_script and evaluate_script to execute JavaScript code in a Selenium-controlled browser. This however is not...
coffeescript.org contains only documentation for the latest CoffeeScript version. Version 2 transpiles to ES6. We stopped using CoffeeScript a while...
There is an issue with when restoring a PostgreSQL dump created with pg_dump < v11 with pg_restore > v10:
Projects with more than one developer should always consider to enforce code review even for small changes to improves the...