... I send out a list of most interesting libraries and apps in the "Crystal" section to about 1100 subscribers.
Do you want it too?
Crystal library for reading and writing files in the Maildir file structure
Application event model for Crystal
File Attachment toolkit for Crystal applications. Heavily inspired by Shrine for Ruby https://github.com/shrinerb/shrine
BinData - Parsing Binary Data in Crystal Lang
The Crystal Programming Language
A stock analysis website written in Crystal
Simulate a queue and a pool of job workers, in essence a "Fiber Pool" for Crystal