I cannot find anywhere in the documentation how to invalidate an FSItem. It seems to be cached indefinitely or am I missing something?

Shouldn't it be supported? Also is there a way to disable spotlight indexing on a mounted folder? mds_stores is going wild on fskit volumes. mount -o nobrowse -t passthrough ~/Downloads ~/mnt alexf@MacBook-Pro-3 build % mount file:///Users/alexf/Downloads/ on /Users/alexf/mnt (passthrough, local, nodev, nosuid, noowners, noatime, fskit, mounted by alexf)```

After building the sample and enabling the file system extension the mount command is freezing. Any tips how to diagnose that? The logs show the following: log stream --style compact --info --debug --predicate 'subsystem == "com.apple.FSKit" OR process CONTAINS[c] "samplecode"' Filtering the log data using "subsystem == "com.apple.FSKit" OR process CONTAINS[c] "samplecode"" Timestamp Ty Process[PID:TID] 2026-03-17 15:15:51.832 I mount[16111:d88caa] [com.apple.FSKit:default] FSClient setting up connection to fskitd 2026-03-17 15:15:51.833 Db fskitd[589:d88a5f] [com.apple.FSKit:default] -[liveFilesMountServiceDelegate listener:shouldAcceptNewConnection:]: start 2026-03-17 15:15:51.833 Df fskitd[589:d88a5f] [com.apple.FSKit:default] Incomming connection, entitled 0 2026-03-17 15:15:51.833 Db fskitd[589:d88a5f] [com.apple.FSKit:default] -[liveFilesMountServiceDelegate listener:shouldAcceptNewConnection:]: accepting connection 2026-03-17 15:15:51.833 Df fskitd[589:d88a5f] [com.apple.FSKit:default] Hello FSClient! entitlement no 2026-03-17 15:15:51.834 Df mount[16111:d88caa] [com.apple.FSKit:default] Setting remote protocol to all XPC 2026-03-17 15:15:51.834 Df fskitd[589:d88a5f] [com.apple.FSKit:default] About to get current agent for 501 2026-03-17 15:15:51.834 I fskitd[589:d88a5f] [com.apple.FSKit:default] About to call to fskit_agent 2026-03-17 15:15:51.835 I fskit_agent[10123:d877d9] [com.apple.FSKit:default] Getting extensions 2026-03-17 15:15:51.836 Db fskitd[589:d88a5f] [com.apple.FSKit:default] -[fskitdAgentManager currentExtensionForShortName:auditToken:replyHandler:]_block_invoke: Found extension for fsShortName () 2026-03-17 15:15:51.837 I fskitd[589:d88a5f] [com.apple.FSKit:default] Probe starting on 2026-03-17 15:15:51.837 Db fskitd[589:d87c31] [com.apple.FSKit:default] -[FSResourceManager getResourceState:]:found: 2026-03-17 15:15:51.837 Db fskitd[589:d87c31] [com.apple.FSKit:default] -[FSResourceManager addTaskUUID:resource:]:: Adding task () 2026-03-17 15:15:51.837 Df fskitd[589:d87c31] [com.apple.FSKit:default] About to get current agent for 501 2026-03-17 15:15:51.837 I fskitd[589:d87c31] [com.apple.FSKit:default] About to call to fskit_agent 2026-03-17 15:15:51.837 I fskit_agent[10123:d877d9] [com.apple.FSKit:default] Getting extensions 2026-03-17 15:15:51.838 Db fskitd[589:d87c31] [com.apple.FSKit:default] -[fskitdXPCServer getExtensionModuleFromID:forToken:]_block_invoke: Found extension , attrs 2026-03-17 15:15:51.838 Db fskitd[589:d87c31] [com.apple.FSKit:default] applyResource starting with resource kind 4

macos 15.4 beta claims to support FSKit. Is there an FSKit sample available? I don't see anything useful in the published docs.

I'm sure this question was asked many times before but I cannot find a good answer. In my case it just doesn't work. Here's what I did Created a couple of test user accounts on appstore connect under the sandbox section. Launched two different simulators via xcode. On each simulator I logged in into test icloud account and game center accordingly. Deployed and launched my code via xcode. What happens is that GameKit code fails to find any peers no matter what I do. Sending Invite doesn't work either because the simulator displays an error message saying "you need to log-in into icloud account first" although it's already logged in. I tried the same code on two different physical devices with two real icloud accounts and it works as expected but it's not a viable path to develop and debug an app. I'm using the latest Xcode 16.1 running on 15.1. Anybody has any clue how to solve this ?

I'm trying to use NetFSMountURLAsync() to mount a folder on an NFSv4 server. That requires passing additional option to the mount command (vers=4). Is there a way to do it with this function?