Bug: strange path resolving in createXXXXX (withPEMNamed pemName: String, onPath path: String)

[HashedViking]

I may misunderstand something here, but when I build my the project the following code fails:
try CryptorRSA.createPrivateKey(withPEMNamed: "private.pem", onPath: "/Resources/")

trying to find the key file at that path:
<path_to_xcode_project_derived_data>/SourcePackages/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSAKey.swift/Resources/private_key.pem

Code causing the problem in createPrivateKey function:
let fullPath = URL(fileURLWithPath: #file).appendingPathComponent( path.appending(certName) ).standardized
Is appending path to CryptorRSAKey.swift file is supposed to be working?

Workaround is to get the content of a .pem file yourself:
try CryptorRSA.createPrivateKey(withPEM: privateKey())

The same problem with any createXXXXX (pemName/derName, onPath) function.