Matias Korhonen
I'm a Ruby developer from Helsinki, Finland. You can find me and my open source projects on GitHub as matiaskorhonen, I occasionally blog about programming and a variety of random things at randomerrata.com, and I tweet as @matiaskorhonen.
Things I've made
TLS.care
TLS.care monitors your sites 24/7 to make sure that your SSL certificates are up to date and not about to expire.
Piranhas
Piranhas is a book price comparison tool. Search through six Amazon country-specific stores, the Book Depository, and Wordery to find the cheapest source for your books.
Beer Styles
Beer Styles wraps up the 2015 and 2008 BJCP Style Guidelines in a pleasing interface on the iPhone and iPad.
Brewing Utilities
A collection of useful calculators for homebrewing. Refractometer conversion, kettle volume, dilution and boil-off, and priming sugar calculators.
Kisko TV
Videos and things from Kisko Labs.
Open source things
Tram Challenge
The goal of the Tram Challenge is to visit all the tram stops on the Helsinki tram system as quickly as possible.
Goad
The winner of the 2016 Gopher Gala, Goad does distributed web app load testing via AWS Lambdas
Goffee
The winner of the 2015 Gopher Gala, Goffee does Global uptime monitoring via Tor.
GoMedia
A Tweetbot custom media endpoint for uploads to S3, written in Go.
Heroku Buildpack: Monit
Run Monit, the open source monitoring utility, on Heroku.
Monit gem
A Ruby interface for Monit
Nordea gem
A Money.gem compatible currency exchange rate implementation for Nordea Bank.
Random Errata
Random Errata is my blog, where I occasionally write about tech stuff, beer making, and other random things.