Ye, I like fun. :) The photo is a little dated but I look the same.

Oldřich Vetešník

Hi, I am a Ruby web developer from Hradec Králové, Czech Republic. During the day I work for Tapmates and the rest for my son. :-)


There are a few things I wrote that may be useful to somebody:


A smallish (Ruby) library to talking to AfterShip via v4 API.


Shorten URLs with API, make parallel requests.


Deep duplicate Ruby objects.

Duration Estimate

Do something to a collection of items and see how long it is goingto take. Useful for long-running Rake tasks.

Geo Mercator

This is just a tiny library which abstracts away working with GPS points and bounds on the Mercator map.


This is a Ruby implementation of the k-means++ algorithm for data clustering. In other words: Grouping a bunch of X, Y points into K groups.


A Ruby progress-bar tool showing how many hours you have worked, should have worked and will have worked.


This is a simple Ruby command-line application to display upcoming and past events like birthdays, namedays and payments.

Where Is It?

A simple Rails app for keeping track of projects with tags and ajax goodies. I often forget where what is so now I will know.

Want To Work With Me?

Send me an e-mail to oldrich.vetesnik [at], you can also find me on GitHub, Twitter or Google+.

repositories onGitHub

Copyright © 2012 – 2016 Oldřich Vetešník
IČ: 74617028, CV