Cosmos-SDK is a software development kit (SDK) for creating custom Cosmos based L1 blockchains. It’s behind powerhouses like Juno, Luna, SCRT, Thor, and more.
This powerful tool allows entrepreneurs and programmers to create blockchain specific apps. These a different than Eth dapps in that they are naturally more robust, being built from the mighty bricks of Cosmos-SDK modules.
I quickly compare Avalanche and Solana to the SDK also. While they can be great for apps, they still aren’t a L1 solution. For example, the tragic fall of Luna didn’t affect any other chains in the Cosmos ecosystem. They are sovereign!