When storing files for lots of records in the server's file system, Carrierwave's default store_dir approach may...
If your Webpack build is slow, you can use the Speed Measure Plugin for Webpack to figure out where time...
Sometimes you want to load code on demand. For instance, when a a large library is only used on a...
Webpack builds can take a long time, so we only want to compile when needed. This card shows what will...
Installing gems on a server that has no access to the internet (especially rubygems.org) requires to bundle the gems into...
When your Rails application server raises error, Capybara will fail your test when it clears the session after the last...
When your application is open for public sign up and sends out transactional e-mails to a large number of...
ZSH is an alternative command line shell that includes some features like spelling correction, cd automation, better theme, and plugin...
By default parallel_tests will spawn as many test processes as you have CPUs. If you have issues with flaky...
Sometimes you want to have a time in a given timezone independent from you Rails timezone settings / system timezone. I...
Recently I made an upgrade from Bootstrap 3 to Bootstrap 4 in a bigger project. Here are some tips how...
By default, your terminal emulator (Gnome Terminal, Terminator, etc.) sets some kind of window title to reflect the shell type...
There are several tools for DNS debugging which offer you more or less information. Most of the time the more...
The Truemail gem (not to be confused with truemail.io) allows validating email addresses, e.g. when users enter them into a...
Using Ruby 1.8.7 you will not be able to use the maximum versions Rubygems 1.8.30 and Bundler 1.17.3 with https://...
When deploying a Rails application that is using Webpacker and Capistrano, there are a few configuration tweaks that optimize the...
IRB 1.2 (shipped with Ruby 2.7, but works on 2.5+) brings pretty syntax highlighting and multiline cursor navigation. However, pasting...
A practical and detailed walk-through tutorial on using ffmpeg for live-streaming HLS, filled with real-world examples.
Terminator has a cool feature that allows you to split your terminal into many panels and type in all of...
Sometimes you want to find the inverse of an ActiveRecord scope. Depending on what you want to achieve, this is...
Ubuntu 18.04 uses systemd to manage services. There are basically two commands for listing all services and manipulating the state...
If you're experiencing problems with your Google Chrome installation after an update, it might help downgrading Chrome to check...
When loading a database dump created with pg_dump into your database, you might run into an error like
This is an extract from the linked article. It shows an approach on how to implement encrypted passwords with the...