supported unknown architecture？

[Sandspeare]

Hello, your excellent work inspired me!
I wonder if the same method can support decompilation of completely unknown architectures, that means a binary IDA can even not disassemble.
Now i have written a script to add some rules for disassemble, but i need to further decompile it, i know Ghidra can do that but i'm not familiar with Ghidra, is IDA can do that?