OpenGSN 是最終的整合...
OpenGSN is the ultimate introductory solution for Ethereum applications without worrying about gas costs. Created as a community effort, fully open source, use tools to run the relay, or integrate it into a DApp.
編譯為 Solidity 的預設值...
NETHEREUM 是一個開源...
Substrate 文獻中心...
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