Some apps, such as wg-easy or Caddy expects you to supply a password in bcrypt format.

This command can be used to generate a random hex password and hash it with Bcrypt:

php -r '$x = bin2hex(random_bytes(16)); echo "$x\n"; echo password_hash("$x", PASSWORD_BCRYPT) . "\n";'

Example output:

dc97920f34c84be8c4dc2297c6e64b77
$2y$10$UzjwXFGgN3mDq9erf2uCzumlzwfoayA7kt0Qu3ReNm4bE3DjNetK2dc97920f34c84be8c4dc2297c6e64b77