The Cardano Foundation released Mesmo, a native shared library enabling Python, Go, Rust, and JavaScript developers to access Cardano Client Lib offline functionalities without requiring a Java Virtual Machine. Built on top of Bloxbean’s Cardano Client Lib via GraalVM Native Image, the library supports account management, key derivation from seed phrases, address validation, and cryptographic operations including Blake2b hashing and Ed25519 signing. It also features a JSON-driven offline transaction builder for payments, staking, and governance operations, allowing transaction construction without network connectivity. The current Python release stands at version 0.1.0rc8, firmly in pre-release territory with APIs subject to change. This initiative aims to expand Cardano’s developer ecosystem beyond its traditional Haskell-centric environment.
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