Nephtali is simple

Nephtali's entire API fits within one file.

Flexible

Nephtali maps onto any directory structure, accommodates any javascript library, and can be added to existing websites without breaking existing code.

Fast

Nephtali's small codebase, simple DB access, and built-in caching hooks greatly reduce overhead and enhance performance.

Security-focused

Nephtali's architecture revolves around the importance of properly validating input and escaping output.

Source: Nephtali