How to build V3.0 from source into Ubuntu

I wanted to build LibreCAD V3.0 from source, but unable to find the solution, the explanation is confusing and hard to understand even though I followed the instructions according to Git-hub page.

https://librecad.readthedocs.io/en/latest/appx/build.html
This link has instructions to build v2.2 is excellent and works absolutely fine. Does this kind of instruction is available on Wiki or any other sources?

LibreCAD V3 is under active development and some of the recent changes have affected the build environment so the wiki needs updating. Can you take this issue up at https://librecad.zulipchat.com/#narrow/stream/122956-Codebase/topic/V3.20devenv?

I was unable to login into Zulipchat  because of deactivated account earlier. Will raise the issue when I am able to login into Zulipchat.