Comment by echelon

Snarky, but I'll take it.

Use strict schema for the hardware interface, networking, physical stuff the user never sees. Microservice names don't need to be non-Latin. Database replicas, infrastructures, etc. And you're not going to piss off employees by giving them ASCII ldap/email addresses.

Use utf8mb4 or similar for storing names. Don't state "first" or "last". I've been through this rodeo too many times. You're not surprising anyone.