Devise extension to use passkeys instead of passwords

A plain Ruby Airbrake notifier

The universal puzzlehunt tracking system.

An experimental puzzlehunt modeling application

Poznámky k přednášce Boolovské funkce a jejich aplikace (MFF UK)

Parlament voting (CZ) simulated by a neural network

Vim/Ruby Configuration Files

A plugin to make the process of creating a negative captcha in Rails much less painful

Ruby on Rails