Exploring Cryptography Fundamentals in Ruby

Jesus Castello walks through the basics of cryptography using examples in Ruby. This is an excellent primer on crypto.

Rbenv — How it works

Dealing with rbenv errors without Google or Stackoverflow

Writing a Shell in 25 Lines of Ruby Code

Every time you open a terminal you are using a shell application. Learn how a shell works & how you can write one in 25 lines of Ruby code!

Debugging memory bloat

This chapter shows how to identify memory-hungry controller-actions and specific memory-hungry requests, provides a visual representation of common pitfalls, and suggestions on fixing memory bloat.

Multi-model searching using Elasticsearch vol. 3

This is a final part of the series about Elasticsearch. We already covered installing and multi model searching. Now it’s time to talk about some of the more complicated stuff and try to improve the searching intelligence. Let’s dive in.

Rails 5 fixes ambiguous column issue for projected fields in group by query

We now don't have to provide a table name in quoted string for fetching fields which are present in join table as well when used with group by clause.

How I built an app with 500,000 users in 5 days on a $100 server

There seems to be a general consensus in the world of startups that you should build an MVP. Unfortunately, this somewhat blind belief has led to some terrible failures. And Pokémon GO reminded us of it.

10 Modern Software Over-Engineering Mistakes

Few things are guaranteed to increase all the time: Distance between stars, Entropy in the visible universe, and Fucking business…

Worque

Manage your daily notes like a bosssss