Have you checked out Crystal?

This page summarizes the projects mentioned and recommended in the original post on /r/rails

InfluxDB - Power Real-Time Data Analytics at Scale
Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
www.influxdata.com
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SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
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  • amber

    A Crystal web framework that makes building applications fast, simple, and enjoyable. Get started with quick prototyping, less bugs, and blazing fast performance.

  • Well, I guess have something to share with you! https://github.com/amberframework/amber

  • jennifer

    Crystal ORM using ActiveRecord pattern with flexible query DSL

  • For a more concrete example, I don't think you can have ActiveRecord-like classes which have their fields defined by fetching actual database schema (without defining the schema upfront, like Jennifer does).

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
  • sorbet

    A fast, powerful type checker designed for Ruby

  • If what you're looking for is typed Ruby, check out Sorbet https://sorbet.org/. It can be integrated (piecemeal) into existing Rails projects.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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