help for example with Condition

[Mikhail]

On Thursday, 11 September 2025 at 09:40:22 UTC, novicetoo wrote:
> cond and mutex are global variables,
> and "Starting with dmd version 2.030, the default storage class 
> for statics and globals will be thread local storage (TLS)"
> https://dlang.org/articles/migrate-to-shared.html

I don't understand what I should do? Define global variables as 
shared?