Relative paths in CFConfig for things like customTagPaths?

I’m wondering if it’s possible to set up a config.json file such that it converts relative paths to absolute paths when required. For example, if I did:

"customTagPaths":[
        {
            "physical":"\CustomTags",
            "primary":"physical",
            "archive":""
        }
    ],

It could expand that automatically to C:\Users\me\myproject\CustomTags assuming I ran the cfconfig command from C:\Users\me\myproject\ directory (or where server.json is located if set up to do the import on server start).

I know I could set this in application.cfc, but handling it with cfconfig or server.json would be more convenient in some cases.

Does this make sense? Is this currently possible in some other way? Thanks in advance!