Ok, so most seems to work so far now. Just that HttpServer doesn’t work with a goto-preview (The app works when running so the all the codebase definitions are rooted). The issue I run into now is that sometimes when going to a definition and then closing that window causes the whole NeoVim session to close.
Looks like Rust-Analyzer will take some time to “load”. Some content will load. I needed to use [g]oto-[p]review [D]eclaration instead of [d]efinition.
Some content still does not work on any goto-preview command.
So apparently, it does work but not on all content. Doesn’t work on HttpServer, and other content in same file but did work on definitions in other files.