custom_id

https://github.com/pniemczyk/custom_id

CustomId generates unique, human-readable, prefixed string IDs (e.g. "usr_7xKmN2pQ…") for ActiveRecord models. Inspired by Stripe-style identifiers. Supports embedding shared characters from related model IDs, custom target columns, configurable random-part length, and an optional PostgreSQL trigger-based alternative.