Hello,
as a follow-up to the Ruby Advent Calendar ongoing now 
- join
us in 2021 and claim a free day
in the upcoming Ruby Blockchain Week 2021, January 3rd to January 9th
- 7 Days of Ruby (Crypto) Gems [1].
Why not highlight a blockchain / cryptos gem with your write-up in
the ruby universe?
Yes, you can! All welcome from no coiners to
bitcon austrian school of economics "I HODL! You HODL! We HODL!
Number Go UP!" maximalists
to universum is the new ethereum [2] world computer blockchainers.
Cheers. Prost.
[1] https://planetruby.github.io/gems/#upcoming-in-2021
[2] https://github.com/s6ruby/universum