Best way of working to wrap a c-library?

Dear all,
I have somewhat experience, but the tooling has hugely improved, namely BinaryBuilder.jl. I’m wrapping this RTKLIB I’m using BinaryBuilder.jl and Clang.jl. I got started quite ok, but now when I’m trying to test use my RTKLIB_jllpackage locally I keep getting these type of errors:

julia> using RTKLIB
[ Info: Precompiling RTKLIB [d3243834-a862-43b1-8389-c8b2594e8f28]
ERROR: LoadError: ArgumentError: Package RTKLIB does not have RTKLIB_jll in its dependencies:
- If you have RTKLIB checked out for development and have
  added RTKLIB_jll as a dependency but haven't updated your primary
  environment's manifest file, try `Pkg.resolve()`.
- Otherwise you may need to report an issue with RTKLIB

I have the impression that I should upload my RTKLIB_jllpackage to GitHub - JuliaPackaging/Yggdrasil: Collection of builder repositories for BinaryBuilder.jl to get it registered and then all the tooling would work out of the box. I can do this, but I would like to locally test the package first that I haven’t made stupid compilation mistakes. Therefore, I have a feeling that I have missed something. Maybe there is a better way of working which I just have’t realized yet.

I was missing this Pkg command:

(RTKLIB) pkg> dev /home/tero/.julia/dev/RTKLIB_jll