@pgfiore: No, if you want a signle fixed screensaver, then put a single file in there
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@NullNix: It bothered me too, until I started working on the K3 port, and realized the framework itself was already doing a crazy amount of superfluous IO
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FWIW, the hack is only doing extra IO on cache miss or true book switch, it won't do anything on a true cache hit [it's not replacing the exact same file with itself if you open the same book twice]).
That said, I can probably come up with something slightly less uglier. Can't use sym/hardlinks straight away because the userstore is a vfat part, so, no dice, but we *can* indeed use something else (the settings part), without even having to resort to an extra tmpfs mount.