"strArray..." gives []string

[viscid grove]

What does it want?

Generally that would also be in the error

[lone gazelle]

want (string, ...string)

[viscid grove]

So you can only give it one string and one slice unpack

You can't give it multiple strings and then unpack a slice

[lone gazelle]

can I combine them all in 1 slice and unpack it?

or 1 normal and others with unpacking

[viscid grove]

Not really in an elegant way, but yes.
If you can get those to the beginning of the slice further up in your code that would be cleanest

Otherwise there's technically append([]string{arg1, arg2}, strArray...)...

[lone gazelle]

Thank you very much! it works