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I am Ukrainian. While Russian army invades Ukraine, kills, rapes, destructs, and steals, I am in Kharkiv, my homecity

I am almost useless but I am volunteering to help those in need, and I am staying.


Let the text below become relevant again in other times. image

Developer and writer from Ukraine. Ruby programming language committer.

Mostly interested in lucid code and open data, and writing a Substack about it. The range of “my” topics are united by an urge to understand and explain. Or, the problems of knowledge acquiring (with code) and expressing meaning (with code).

Working on my first Ruby book, working title "41 Ruby Intuitions".

Recent/interesting work

Ruby programming language

Open data

  • Working to an API to the world's common knowledge (based on Wikipedia/Wikidata, but not limited to it):
    • First (discontinued) attempt: molybdenum-99 set of Ruby projects
    • Second (current) attempt: WikipediaQL Python library; writing on it: 0, 1, 2, TBC
  • Spylls: Python spellchecker, almost full port of Hunspell; an explanatory port to understand/show how it works. Series of articles: Rebuilding the spellchecker

Some Ruby libraries

  • time_calc: idiomatic, no-monkeypatching Time/Date math
  • saharspec: set of extensions for RSpec for DRYer specs
  • the_schema_is: ActiveRecord models annotation done right
  • yard-junk: YARD docs linter
  • whatthegem: Console tool for fetching information about gems (stats, usage, recent changes)
  • sho: Experimental "post-framework" views library

Fun and experiments

Full list of projects of various years


  1. Ruby Programming Language Reference

    Ruby 234 23

  2. spylls Public

    Pure Python spell-checker, (almost) full port of Hunspell

    Python 243 11

  3. Wikipedia information extraction library

    Ruby 167 14

  4. Query language for efficient data extraction from Wikipedia

    Python 345 5

  5. time_calc Public

    Simple time arithmetics in a modern, readable, idiomatic, no-"magic" Ruby.

    Ruby 204 3

  6. whatthegem Public

    Ruby gem information, stats and usage for your terminal

    Ruby 60 1

214 contributions in the last year

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Mon Wed Fri

Contribution activity

September 2022

Opened 1 pull request in 1 repository
Reviewed 1 pull request in 1 repository

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