Alexander Lazarov alexander-lazarov

Software engineer based in Sofia, Bulgaria. Using mostly RoR and React.js nowadays.

alexander-lazarov / o4o.rb

Created March 12, 2026 09:23

	# lines = File.readlines('test-malyk.csv')
	lines = File.readlines('test.csv')

	ANGLE = 2 * Math::PI
	ANGLE_STEPS = 256
	RADIUS_STEPS = 400.0
	RADIUS = 8.0

	lines = lines.map.with_index do \|line, j\|
	line.split(',').map.with_index do \|measurement, i\|

alexander-lazarov / Bulgarian cadastre opendata scrape

Created November 10, 2025 22:09 — forked from yurukov/Bulgarian cadastre opendata scrape

	Important notes:
	1. Please run this command only during the night when load on the server is low
	2. This loads all index files and documents from the opendata portal
	3. The script saves your last download time and downloads only those files that are marked as updates after
	4. Expected download size should be about 6G

	Steps:
	1. Open https://kais.cadastre.bg/bg/OpenData
	2. Open DevTools
	3. Find the second Fetch/XHR call to https://kais.cadastre.bg/bg/OpenData/Read (the one with payload)

alexander-lazarov / vim-cheatsheet.md

Last active April 2, 2018 07:26

Vim Cheatsheet

Map `,t` to save current file and run a command

:map ,t :w\|:!rake<cr>

<C-n>

alexander-lazarov / about.md

Last active April 2, 2018 07:56 — forked from jasonrudolph/about.md

Programming Achievements: How to Level Up as a Developer

This gist is part of a blog post. Check it out at:

alexander-lazarov / install_imagemagick_6.sh

Last active May 19, 2018 20:51

latest 6.x imagemagick

	brew install imagemagick@6
	brew link imagemagick@6 --force

	# brew install https://github.com/Homebrew/homebrew-core/raw/7efe381f290b472950ad4d1b25e3e4db58a58dd7/Formula/imagemagick.rb
	# ## if you get a missing PNG library error install with --from-source option
	# # brew install https://github.com/Homebrew/homebrew-core/raw/7efe381f290b472950ad4d1b25e3e4db58a58dd7/Formula/imagemagick.rb --from-source
	# brew switch imagemagick 6.9.7-1

alexander-lazarov / Dockerfile

Last active March 16, 2016 22:09

Attempt to fix Xvfb-run crash when running selenium images

	# replace with the specific selenium image you use
	# the problem is with Xvfb, not the selenium server or the browser,
	# so this fix should apply to all selenium images
	FROM selenium/standalone-firefox

	# attempt to fix this issue:
	# https://github.com/SeleniumHQ/docker-selenium/issues/91

	# switch to root so you can chmod the file
	USER root

alexander-lazarov / .vimrc

Last active January 25, 2016 11:40

vimrc

	if has('gui_running')
	colorscheme desert
	endif

	set nocompatible " be iMproved, required
	filetype off " required

	" set the runtime path to include Vundle and initialize
	set rtp+=~/.vim/bundle/Vundle.vim
	call vundle#begin()

alexander-lazarov / python3.4_2015-11-10-112627_rincewind.crash

Created November 10, 2015 09:37