* fix(nixos): use the qt 6 version of sddm
the upstream port has moved to qt 6, while nixos' default is still qt 5
* chore(nixos): use the qt6 version of sddm in tests
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Co-authored-by: seth <getchoo@tuta.io>
* chore: rename `mkFlavourOpt` to `mkFlavorOpt`
Missed by fea5242
* fix(nixos): sddm package not being installed
Never use attrset merge operator with `mk*` attrsets since the right hand attrset overrides the left
* chore(modules): add mkVersionedOpts to lib
* ci: test against stable nixos/home-manager
* feat(modules): support nixos & home-manager's stable branches
* docs: add version support information
