“Think of the @TiddlyWiki as a markdown processor with a Turing-complete turbo-charged hyper-drive that becomes your external brain. Start intertwingling your ideas. Simple TWs use just markdown - but advanced TWs can do virtually anything.”

– Joe Armstrong, creator of erlang

An overcomplicated way to send people birthday cards through the power of blockchain. The repo is an implementation of the accompanying paper here which is probably more interesting than the tooling itself :)