Most prior attempts reduce to hash(master || site). Bastion treats password generation as a cryptographic protocol with explicit invariants, not a convenience function.
An important note is
Hashing ≠ memory-hard
Hashing ≠ unbiased sampling
Hashing ≠ domain separation
Hashing ≠ rotation without storage
An important note is Hashing ≠ memory-hard Hashing ≠ unbiased sampling Hashing ≠ domain separation Hashing ≠ rotation without storage