valetudo-helper-httpbridge is a small utility webserver providing file upload functionality.
It comes as a single binary with no additional dependencies and requires only experience with a terminal.
Simply download the latest binary from the releases section and execute it in a terminal/powershell window.
Valetudo helpers are a series of small standalone self-contained single-purpose single-file tools built to make usage and/or installation of Valetudo a bit easier.
As with everything Valetudo, some intermediate computer skills are required. You should know what a network is, what HTTP is, how a terminal works and that kind of stuff. Please understand that it's not feasible for this or any open source project to provide basic computer lessons.