How to integrate C language server with Apache NetBeans?

[magbroxwt]

I'd like build a demo like this https://blogs.apache.org/netbeans/entry/lsp-client-demo-ba-sh.
I try to use Clang(https://github.com/clangd/clangd) as a C language server , but it seems to be hard to use.
I see Netbeans has supported it like this :

But I don't want to use this way.

In https://blogs.apache.org/netbeans/entry/lsp-client-demo-ba-sh , there is a key:

How to imitate it to use Clang in my plugin production ,even Clang is installed in remote linux server ?