Prusaslicer has the ability to download links from printables.com. However, Gentoo's build (and other distros) fails with a non-descript error message "Loading of a model file failed". Unfortunately, upstream doesn't offer any support for builds that don't make use of their vendored dependencies. Arch maintainers have even resorted to using most of the vendored deps, which is an unfortunate reality. https://gitlab.archlinux.org/archlinux/packaging/packages/prusa-slicer/-/blob/main/PKGBUILD?ref_type=heads#L21 Reproducible: Always Steps to Reproduce: 1.Click on the Pursaslicer icon for one of the STL/3MF files on printables.com 2.Dialog asks if you want to use the Prusaslicer URL protocol 3.Prusaslicer opens and loads the model Actual Results: Error message window pops up saying "Loading of a model file failed." Expected Results: Prusaslicer should download the model and load it I'm not sure what the right course of action here is. Going the way Arch did not only muddies up the build, but will present issues with sandboxing since the cmake scripts will try and download the dependencies to install them in the build.
Oh, I should mention that the Appimage build is able to use the download feature without error.
I changed ~/.local/share/applications/PrusaSlicerURLProtocol.desktop to contain `Exec="/usr/bin/prusa-slicer" --single-instance %u --loglevel 5 &> ~/.cache/PrusaSlicer.log`. But outside of repeated lines of `Download 1: 6.0469e+06` there is nothing noteworthy.
