One important aspect of the Crypto and DeFi ecosystem is the availability of source code in a free and open way.

An open-source project allows everyone to inspect and validate that the code will perform its intended purpose. Furthermore, being free allows anyone to copy, modify, or run as they wish. This also enables anyone to fork the project and steer it as they see fit.

This openness naturally enables innovation to flourish faster than centralized and closed-sourced projects. 

With its standard protocols and decentralized nature, the Internet is one of the most significant examples of such an open approach.