Issue with Bottles installed from Flatpak

Help
1

I installed Bottles version 66.6 from Flatpak as recommended by developer, but when I try to create a bottle, I always run into Wine mono issue regardless of which runner I choose (caffe, built-in Wine, …).

(ERROR) Failed to install dependency: Wine mono

Have anyone encountered this issue before?

2

Maybe you havent provided bottles internet access? (Or proper file access?)

Install flatseal if you havent and adjust the permissions.

This is partially my config for bottles (https://codeberg.org/BlastboomStrice/dotfiles/src/commit/3895b01f8d1cc92b3954e63cc9910768188ca2f3/.config/nixos-config/hosts/nixos-base/configuration.nix#L270):

# Flatpak
  # Declarative - convergent mode approach
  # https://wiki.nixos.org/wiki/Flatpak
  services.flatpak = {
    enable = true;
    # Set the remotes to official flathub repo - Unecessary
    remotes = [
      {
        name = "flathub";
        location = "https://dl.flathub.org/repo/flathub.flatpakrepo";
      }
    ];
    # The packages to install
    packages = [
      "com.github.tchx84.Flatseal"
      "com.usebottles.bottles"
      "org.freedesktop.Platform.VulkanLayer.vkBasalt/x86_64/25.08" # bottles # gets pinned
      "org.freedesktop.Platform.VulkanLayer.gamescope/x86_64/25.08" # bottles # gets pinned
      "org.freedesktop.Platform.VulkanLayer.MangoHud/x86_64/25.08" # bottles # gets pinned
      "com.obsproject.Studio.Plugin.OBSVkCapture" # bottles # gets pinned
    ];
  };

  # XDG portal - useful for including paths
  xdg.portal.enable = true; # flatpak already enables this

It sets up flatpak declaratively and installs it declaratively bottles with its dependencies and flatseal. I simply followed https://wiki.nixos.org/wiki/Flatpak.