Fixes the dlss5-feed.addon64: HTTP 404 Not Found failure (#7, #8, #9, #12). DLSS5-Feeder 0.11 replaced its loose release files with a single zip per release, so the fixed download URLs stopped existing. The tool now finds the newest Feeder release, downloads its zip and takes dlss5-feed.addon64 and DLSS5_Feed.fx out of it — verified end to end against v0.11.0-beta.2.
The engine choice is now obvious. It used to be a thin radio row that only appeared on games with their own DLSS. It is now a pair of cards labelled INSTALL ENGINE above the component list, always visible: ReShade + RenoDX add-on (the default, works everywhere) and OptiScaler (built-in NR pass), the second greyed out with the reason when the game has no DLSS to hook.