# Prints a cryptographically random SECRET_KEY value; does not modify .env.
$bytes = [byte[]]::new(32)
$rng = [System.Security.Cryptography.RNGCryptoServiceProvider]::new()
try {
    $rng.GetBytes($bytes)
} finally {
    $rng.Dispose()
}
($bytes | ForEach-Object { $_.ToString("x2") }) -join ""