Solidity, Rust, Python, Move, Go(Cosmos SDK), PHP, TypeScript
https://mikuga.co.jp/press-20180410/
Overview: A chat-based payment application aiming for gasless token transactions on off-chain. Technology: Monitored on-chain transaction events and reflected them off-chain to realize this.
Development Language: Solidity, AWS
Overview: New DEX development on Aptos. Technology: First-ever Multi-pool DEX based on Balancer developed in Move language. Incorporating features of Move the language and specifications of Balancer's Multi-pool.
Development Language: Aptos Move, Solidity, AWS (Lambda)
Overview: Automated order contract development on Sei Chain. Technology: Sei offers a feature called DEX Module, where deploying a contract allows for automatic order placements. The protocol was developed based on this mechanism.
Development Language: Rust, Python
https://twitter.com/HanaNetwork
Overview: Initial design of a privacy chain called HANA Network. Technology: Zero-Knowledge Proofs (Halo2), The chain was designed using the Cosmos SDK, and the bridge design was influenced by Atomic Swap, XClaim, ZetaChain, Namada, and others.
Development Language: Go, Rust