Hi!
Dgraph Labs is still functional and there would definitely be continuation of service. Here’s the official announcement pertaining to the same.
I agree, we should have an ARM64 build available today. We’d encountered issues in the past during compilation when using a tool called xgo. I reckon, xgo was chosen due to the fact that it simplifies cross-compilation of Go code that uses CGO, which otherwise is non-trivial as you need access to platform-specific libs and headers.
IMO the best path forward is to address issues seen with xgo last, as that would also help for adding support for other platforms and architectures. But we are now aware of the situation and open to exploring all other possibilities as well, just in case.