How to build your own dex?

How would one begin the process of building their own decentralized exchange, or DEX? Are there any prerequisites that need to be met, such as having a certain level of technical expertise or knowledge in blockchain development? Are there any specific tools or software that are commonly used in the creation of a DEX? Additionally, what are some of the challenges that one might face when building a DEX, and how can they be overcome? Understanding the intricacies of building a DEX is crucial for anyone looking to enter this exciting and rapidly growing field.