You could open a RFP
against the packages on the Debian bug reports.
Qt 5 programs are usually pretty easy to package, as far as I know, but you could help out whoever does the packaging by providing comprehensive copyright information for your code and for whatever else code, icons, or whatever you used or adapted for the program. If any of the third-party stuff doesn't meet Debian Free Software Guidelines, it must be easy to remove without affecting the program, or you should replace it yourself in the source with dfsg-compliant material. An example would be an icon that has a corporate logo, such Netflix, that the company has not released for public use.