abiparser - application binary interface (abi) parser machinery / helper for Ethereum & Co. (blockchain) contracts

digest-lite - crypto(graphic) hash functions / classes - Digest::KeccakLite (512bit, 256bit, etc), Digest::SHA3Lite (512bit, 256bit, etc) in "100% pure" ruby "lite" scripts, that is, without any c-extensions and with zero-dependency

DNS Service Discovery (aka Bonjour, MDNS) API for Ruby. Implements browsing, resolving, registration and domain enumeration. Supports avahi's DNSSD compatibility layer for avahi 0.6.25 or newer.

enums - safe enumeration types - a set of symbolic keys bound to unique integer numbers (incl. bit flags option)

fast_xs provides C extensions for escaping text. The original String#fast_xs method is based on the xchar code by Sam Ruby: * http://intertwingly.net/stories/2005/09/28/xchar.rb * http://intertwingly.net/blog/2005/09/28/XML-Cleansing _why also packages an older version with Hpricot (patches su...

Graph is a type of hash that outputs in graphviz's dot format. It comes with a command-line interface that is easily pluggable. It ships with plugins to graph dependencies and status of installed rubygems, rake tasks, homebrew ports, mac ports, and freebsd ports, coloring leaf nodes blue, outdat...

Use any HTML template as a theme generator for your Rails app. Installs an HTML template, and its CSS, JavaScript and image assets into your Rails app, ready to go in an instant. You just tell it which DOM elements are special, e.g. where to put the <%= yield %>, load your app in the browser a...

sportdb - sport.db Command Line Tool

abidoc - application binary interface (abi) documentation generator for Ethereum & Co. (blockchain) contracts

abidump gem - command-line tool to dump / pretty print or (re)format application binary interfaces (abi) for Ethereum & Co.

"high-level" all-in-one umbrella quick starter gem for easy installation & usage application binary interface (abi) code or doc(umentation) gen(eration) for ethereum & co.

alphabets - alphabet (a-z) helpers incl. unaccent, downcase, variants, and more

base32-alphabets - base32 (2^5) encoding / decoding in 5-bit groups with kai, crockford or electrologica notation / alphabet

base58-alphabets - base58 encoding / decoding numbers, hex or binary strings (incl. leading zeros) with bitcoin or flickr notation / alphabet

blockchain-lite - build your own blockchain with crypto hashes - revolutionize the world with blockchains, blockchains, blockchains one block at a time

centralbank - print your own money / cryptocurrency; run your own federated central bank nodes on the blockchain peer-to-peer over HTTP; revolutionize the world one block at a time

crypto-lite - cryptographic secure hash functions and public key signature algorithms made easy

cryptoquotes - incl. oracle tool to get a random crypto quote of the day on the command line - on the new new 'in math we trust' ponzi economics - on get-rich-quick blockchain secrets - on bitcon maximalists, scammers, morons, clowns, shills & bagHODLers and more

date-formats - read / parse and print dates (and times) from around the world

elliptic - elliptic curve digital signature algorithm (ECDSA) cryptography with OpenSSL made easy (incl. secp256k1 curve)