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kahfei :: Why should a person buy a computer?

An excellent interview with Steve Jobs by Playboy. "Why should a person buy a computer?" the interviewer asks. Remember, it is 1985. Computer is not as common and not as advanced as today. Normal ...

Ramblings :: Using Openstack/Devstack Floating IPs from outside

I hope that this is of use to someone. After many hours of tearing down, building up, programming routers, etc., I've figured out why my devstack wasn't allowing access from floating ips. I knew t...

Running with Rails – Dev Blog not only for Rails fanatics :: ActiveRecord count vs length vs size and what will happen if you use it the way you shouldn’t

One of the most common and most deadly errors you can make: using length instead of count. You can repeat this multiple times, but you will always find someone who'll use it the way it shouldn't b...

Running with Rails – Dev Blog not only for Rails fanatics :: Ubuntu 14.04 Gnome keyring (Seahorse) auto unlock when auto login

Seahorse doesn't unlock your keyring when you have auto login enabled. The funny thing is that even if you set up an empty password, you will still have to unlock it manually. Maybe it's a bug, ma...

Ruby on rails, iOS and Android consultants :: Advocating Fragment Oriented Applications in Android

This is a series of 6 blog posts which explains about Fragment Oriented Architecture in Android applications. In this first post, I'm going to explain what is Fragment Oriented Architecture and why ...

Ruby on rails, iOS and Android consultants :: User Phone Verification – A way to prevent fraud in e-commerce

Recently in one of our e-commerce projects we implemented phone verification for users to have authentic accounts at our website. The requirement was to have one account per user to avoid misuse of of...

Max De Marzi :: Tracking User Paths in an IVR with Neo4j

I started my software development career writing applications for a Call Center at a small bank in Florida. I remember the bank had purchased whatever the "Cadillac" of Interactive Voice Response ...

Running with Rails – Dev Blog not only for Rails fanatics :: Ruby & Rails: Making sure rake task won’t slow the site down

If you don't have multiple cores and/or you have a small VPN, you may end up with a huge slow down of your web app, when rake tasks are executed. This can be a big issue especially when you use some...

macbury.ninja :: Enklawa API gem

I wrote a simple gem that provides simple api wrapper for http://enklawa.net radio resources like programs and episodes. Everything is stored in one json file for easy fetching. Installation Install...