I switched from Vim to Spacemacs & Elixir. Here’s my config & reasons

I have recently made a switch from vim to spacemacs. Spacemacs is basically emacs for vim users. Vim editing is great and you can still use you old habits while being on a most advanced and robust work…

Auto tmux ssh hostname window title that actually works

Working a lot with tmux? Lost in window list?

This very simple ssh wrapper that will automatically set your current tmux window title to the hostname that you’ve sshed on.

Object instantiation time benchmark in Python : ARM vs. x86

Suppose we have two machines.

• Intel x86 : Core Duo 1.86GHz CPU — python 2.7.4 on Ubuntu 13.04
• RaspberryPi — ARM 700Mhz CPU -python 2.7.3 on raspbianOS

Ubuntu 12.04’s ghostscript v. 9 is 10–20 times slower than v. 8

Recently I’ve migrated huge rails app to Amazon Opsworks which support Amazon Linux and Ubuntu. My customers started to whine about the time that it takes to process their pdfs. I did some research and it came out that…

My latest Warsaw Ruby Users Group about AWS Opsworks

[slideshare id=29146245&sc=no]

OSX terminal spell to notify you when internet connection is back

Here's a simple loop that will notify you as soon as your internet connection is back. It will basically try to ping Google's first DNS server until it suceeds.

[code language="shell"]
until…

Custom symlinks in Amazon Opsworks RoR application

If you want your custom yaml files inside config/ directory of your rails application deployed via Amazon Opsworks, its nice to do it the Chef-way. Provided that your application name is “MyApp Staging”, and you already have “database” and…