Decky File Manager 2.2.1

New

Storage drives

• Drives are now shown as capsules with an icon, name, free space and a usage bar. Volumes that are read-only (ISO sticks, for example) show "Read-only" instead of a red "0 B free".
• Mounted and unmounted devices are listed, following the same visibility rules as Dolphin: EFI/boot partitions, partitions without a filesystem, swap, whole disks that have partitions and other devices hidden by udisks are not shown.
• Selecting an unmounted drive mounts it (an administrator password modal appears only if needed).
• Y on a drive opens a menu with Rename, Unmount and Cancel (not available for the system drives, root and home).
• Unmounting now always works: if the device is busy, it falls back to a lazy unmount.
• LUKS support: encrypted volumes appear as "Encrypted"; selecting one asks for the passphrase, unlocks and mounts it. Unmounting locks it again.

Steam integration

• Steam's "Browse..." buttons (for example the executable and "Start in" fields in a game's properties) open the plugin's file manager instead of the Linux one.
• Other "open folder in the file manager" actions in Big Picture (install folder, screenshots, local directories) also open the plugin.
• Outside Big Picture, or if anything fails, the system dialog is used as before.

Fixes

• Archive extraction protects against path traversal.
• Errors from the backend are now returned as results instead of raising exceptions.