Add the plasma-manager flake input and wire it into home-manager,
along with a custom breeze-enhanced KWin decoration package, KDE
config (fonts, cursor theme, window rules), and .desktop entries
for OBS/volctl/Warudo shortcut scripts.
Flatpak >=1.18.0 leaks the NixOS host environment into the sandbox,
breaking glycin-svg icon loading (e.g. OpenDeck). Pin services.flatpak.package
to a nixpkgs-flatpak input locked to a revision with Flatpak 1.16.6, scoped
to the Flatpak service only, until flatpak/flatpak#6721 lands in nixpkgs.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
emmatherock