DeckyCache 0.4.4

DeckyCache 0.4.4

Compatibility

Tested SteamOS: 3.8.28, build 20260922.1 (NVIDIA PC).

This ZIP includes Open CAS 26.09.0.1102.release modules for exactly:

6.18.50-valve2-1-neptune-618-gc7289a96b14d

Supported library sources are ext4 data partitions on separate, non-system drives.
The kernel is not rebuilt or replaced. A different kernel needs a matching bundle.

SSD/NVMe block caching for SteamOS PC using Open CAS. Games stay on the original HDD,
and writethrough keeps game writes and updates on that drive.

• Simple cache-drive format/reuse controls and independent switches for library partitions.
• Persistent cache across clean restarts.
• Cached games with Steam artwork, names and partial cache sizes.
• Small fragments collapsed separately, compact information dialogs and section dividers.
• Clear all cache without formatting the NVMe or deleting games.
• Shutdown ordering for the tested NVIDIA SteamOS setup.
• Illustrated installation and setup guide.

Install

Download DeckyCache-0.4.4.zip from this release.

Enable Decky Loader settings → General → Developer mode.
Then open Developer → Install Plugin from ZIP File → Browse and select the ZIP,
or paste the attached ZIP's direct download link into Install Plugin from URL.
If the link requires signing in, install the downloaded file.

Choose the attached plugin ZIP, not the automatically generated source-code archives.

A selected partition is cached as a whole. No pinning, folder filtering or per-game clear is included.
Game sizes are partial attribution. A clean shutdown is required for cache reuse;
invalid state causes a cold rebuild.

GRID and DiRT 3 ran on the test PC. Normal restart preserved cached data;
GRID produced attributed cache hits and physical NVMe reads after reboot.
Storage-level update coherence was checked on disposable images.
An end-to-end Steam download/update remains unverified.

The plugin runtime matches the tested 0.4.4-dev build; this release changes the version metadata,
packaging and documentation.