Midrags/SFF v6.6.4 on GitHub

SteaMidra v6.6.4

What's new:

Fixed the Linux installer failing to install the required steam Python package. steam==1.4.4 is now correctly installed into the SteaMidra virtual environment during setup, preventing ModuleNotFoundError crashes on startup.
Fixed Linux game launching for Proton/Wine games. SteaMidra no longer searches only for native ELF executables and instead delegates launches through Steam, correctly supporting both native Linux games and Windows games running through Proton.
Fixed downloads hanging on Wayland when modal dialogs were invisible. GUI-thread waits now have a 30-second timeout, while temporary download requests have a 120-second timeout instead of waiting indefinitely.
Fixed existing ACF files that were read-only and could not be overwritten. SteaMidra now restores write permissions before updating them.

Fixed Crack Files actions appearing to do nothing. Crack Fix, Multiplayer Fix, and Manage DLC operations now return proper success/error states and display feedback through UI notifications.
Replaced the browser's native OK/Cancel dialog for the Auto Update prompt with SteaMidra's custom Yes/No confirmation dialog.
Fixed the Ryuu API key prompt loop. SteaMidra now asks whether the key is for the Reseller or Premium endpoint before accepting it, ensuring the correct API is used. Failed authentication clears both stored keys.
Fixed DepotDownloaderMod progress getting stuck at 95%. Progress can now correctly reach 100%.
Fixed empty manifests being treated as successful downloads. The native downloader now rejects zero-byte manifest responses.
Fixed saved_lua/<appid>.lua files remaining behind after removing a game. Game removal now cleans up the associated Lua file as well.
Empty Hubcap API key input is now handled gracefully instead of causing unnecessary failures.

Full detailed changelog is in CHANGELOG.md