restrict file_use to only files edited in the last 14 days, since periodically cocalc is being overloaded by difficult queries involving file_use
restrict file_use to only files edited in the last 14 days, since periodically cocalc is being overloaded by difficult queries involving file_use

sagemathinc/smc,tscholl2/smc,DrXyzzy/smc,DrXyzzy/smc,DrXyzzy/smc,sagemathinc/smc,sagemathinc/smc,sagemathinc/smc,tscholl2/smc,tscholl2/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc