Answer: Viable Systems is a blockchain development company that was developing TezEdge, a Tezos shell written in Rust. TezEdge was designed to provide a secure and reliable platform for users to interact with the Tezos blockchain. It was created with the goal of providing a user-friendly interface and making it easier for developers to build applications on the Tezos blockchain. TezEdge was built to provide a secure, fast, and reliable way for users to interact with the Tezos blockchain, as well as providing a platform for developers to create applications on the Tezos blockchain. TezEdge was designed to provide a secure and reliable platform for users to interact with the Tezos blockchain, and to make it easier for developers to create applications on the Tezos blockchain.