Sadly I am no go developer, only JS and Python.
Why don’t you create some kind of Patreon (donation platform), where people can give a little money dedicated to bugs or features. That is then handed to developers.
Kind of intransparent to me is the development roadmap. There are Traefik employees, there are independent contributors, who is setting the priorities of what is implemented?
I am just interested as I am seeing with another open source tool, that pull requests are sitting unaccepted for multiple months, even though the community is interested.
Update: there is a related post 