How do you manage yours? I really don't know what others do. I'm not sure what the standard practice is.

But maybe when clients provide people an nsec, they should make a practical suggestion rather than only saying "don't share your nsec with anyone else." Maybe they should add something like, "One popular way to save and protect your secret key is to use a trusted password manager, such as...."

But then I dont know how many normal people are familiar with password managers. I only started using them during COVID when I become privacy conscious.

I don't have easy answers. I'm still working on getting people to ditch SMS messages for FOSS encrypted messengers.

When people don't care about commonsense privacy, they don't care to make any extra effort regarding messengers, emails, crypto, or social media. They're products of the system.