A business may have developed a Dapp on a blockchain platform, but instability of that platform or discontinuation of the said blockchain should not be a detrimental factor for the said Dapp. A business can migrate from one Blockchain platform to another blockchain platform with a single click or few minor adjustments. We propose a blockchain platform (Elisia), which itself is a Dapp platform having the ability to build a Dapp for any existing blockchains and allow migration of Dapps from one blockchain platform to another with a single click. This paper outlines the context, vision and software architecture underlying Elisia, which we are building to serve a broad and diverse group of users and blockchains.