Help with building and running this

[nightstick24]

I'm struggling to build and use this, any chance you could help an idiot out and explain it like I'm a 5 year old?

I download the master, open a cmd prompt in it, run cmake . to build it, cmake runs through and says

-- Building for: Visual Studio 17 2022
-- Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.19045.
-- The C compiler identification is MSVC 19.41.34120.0
-- The CXX compiler identification is MSVC 19.41.34120.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.41.34120/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.41.34120/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (23.9s)
-- Generating done (0.1s)
-- Build files have been written to: C:\PFS Tool

Which all seems to look fine, I think. But running pfs_upk from the same cmd prompt with a pfs file to extract or a path to repack gives me

'pfs_upk' is not recognized as an internal or external command,
operable program or batch file.

I'm lost, and out of my depth, help would be greatly appreciated.