diff --git a/src/LibHac/Fs/AccessLog.cs b/src/LibHac/Fs/AccessLog.cs
index 7f631a58..5039acf4 100644
--- a/src/LibHac/Fs/AccessLog.cs
+++ b/src/LibHac/Fs/AccessLog.cs
@@ -988,6 +988,15 @@ namespace LibHac.Fs.Impl
                 (byte)'i', (byte)'d', (byte)':', (byte)' '
             };
 
+        /// <summary>"<c>, imagedirectoryid: </c>"</summary>
+        public static ReadOnlySpan<byte> LogImageDirectoryId => // ", imagedirectoryid: "
+            new[]
+            {
+                (byte)',', (byte)' ', (byte)'i', (byte)'m', (byte)'a', (byte)'g', (byte)'e', (byte)'d',
+                (byte)'i', (byte)'r', (byte)'e', (byte)'c', (byte)'t', (byte)'o', (byte)'r', (byte)'y',
+                (byte)'i', (byte)'d', (byte)':', (byte)' '
+            };
+
         /// <summary>"<c>, gamecard_handle: 0x</c>"</summary>
         public static ReadOnlySpan<byte> LogGameCardHandle => // ", gamecard_handle: 0x"
             new[]
diff --git a/src/LibHac/Fs/Shim/BaseFileSystem.cs b/src/LibHac/Fs/Shim/BaseFileSystem.cs
new file mode 100644
index 00000000..a5563819
--- /dev/null
+++ b/src/LibHac/Fs/Shim/BaseFileSystem.cs
@@ -0,0 +1,68 @@
+using LibHac.Common;
+using LibHac.Fs.Fsa;
+using LibHac.Fs.Impl;
+using LibHac.FsSrv.Sf;
+
+using IFileSystem = LibHac.Fs.Fsa.IFileSystem;
+using IFileSystemSf = LibHac.FsSrv.Sf.IFileSystem;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for mounting base file systems.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class BaseFileSystem
+{
+    private static Result OpenBaseFileSystem(FileSystemClient fs, ref SharedRef<IFileSystemSf> outFileSystem,
+        BaseFileSystemId fileSystemId)
+    {
+        using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+
+        Result rc = fileSystemProxy.Get.OpenBaseFileSystem(ref outFileSystem, fileSystemId);
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+
+    private static Result RegisterFileSystem(FileSystemClient fs, U8Span mountName,
+        ref SharedRef<IFileSystemSf> fileSystem)
+    {
+        using var fileSystemAdapter =
+            new UniqueRef<IFileSystem>(new FileSystemServiceObjectAdapter(ref fileSystem.Ref()));
+
+        Result rc = fs.Register(mountName, ref fileSystemAdapter.Ref());
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+
+    public static Result MountBaseFileSystem(this FileSystemClient fs, U8Span mountName, BaseFileSystemId fileSystemId)
+    {
+        Result rc = fs.Impl.CheckMountName(mountName);
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        using var fileSystem = new SharedRef<IFileSystemSf>();
+        rc = OpenBaseFileSystem(fs, ref fileSystem.Ref(), fileSystemId);
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        rc = RegisterFileSystem(fs, mountName, ref fileSystem.Ref());
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+
+    public static Result FormatBaseFileSystem(this FileSystemClient fs, BaseFileSystemId fileSystemId)
+    {
+        using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+
+        Result rc = fileSystemProxy.Get.FormatBaseFileSystem(fileSystemId);
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/ErrorInfo.cs b/src/LibHac/Fs/Shim/ErrorInfo.cs
new file mode 100644
index 00000000..7a951e54
--- /dev/null
+++ b/src/LibHac/Fs/Shim/ErrorInfo.cs
@@ -0,0 +1,23 @@
+using LibHac.Common;
+using LibHac.FsSrv.Sf;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for obtaining error information from the file system proxy service.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class ErrorInfo
+{
+    public static Result GetAndClearFileSystemProxyErrorInfo(this FileSystemClient fs,
+        out FileSystemProxyErrorInfo outErrorInfo)
+    {
+        using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+
+        Result rc = fileSystemProxy.Get.GetAndClearErrorInfo(out outErrorInfo);
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/FsStackUsage.cs b/src/LibHac/Fs/Shim/FsStackUsage.cs
new file mode 100644
index 00000000..cb8b25a2
--- /dev/null
+++ b/src/LibHac/Fs/Shim/FsStackUsage.cs
@@ -0,0 +1,21 @@
+using LibHac.Common;
+using LibHac.Diag;
+using LibHac.FsSrv.Sf;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for getting the amount of stack space used by FS threads.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class FsStackUsage
+{
+    public static uint GetFsStackUsage(this FileSystemClient fs, FsStackUsageThreadType threadType)
+    {
+        using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+
+        Abort.DoAbortUnlessSuccess(fileSystemProxy.Get.GetFsStackUsage(out uint stackUsage, threadType));
+
+        return stackUsage;
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/ImageDirectory.cs b/src/LibHac/Fs/Shim/ImageDirectory.cs
new file mode 100644
index 00000000..213d357e
--- /dev/null
+++ b/src/LibHac/Fs/Shim/ImageDirectory.cs
@@ -0,0 +1,75 @@
+using System;
+using LibHac.Common;
+using LibHac.Fs.Fsa;
+using LibHac.Fs.Impl;
+using LibHac.FsSrv.Sf;
+using LibHac.Os;
+using IFileSystem = LibHac.Fs.Fsa.IFileSystem;
+using IFileSystemSf = LibHac.FsSrv.Sf.IFileSystem;
+
+using static LibHac.Fs.Impl.AccessLogStrings;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for mounting the directories where images and videos are saved.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class ImageDirectory
+{
+    public static Result MountImageDirectory(this FileSystemClient fs, U8Span mountName, ImageDirectoryId directoryId)
+    {
+        Result rc;
+        Span<byte> logBuffer = stackalloc byte[0x50];
+
+        if (fs.Impl.IsEnabledAccessLog(AccessLogTarget.System))
+        {
+            Tick start = fs.Hos.Os.GetSystemTick();
+            rc = Mount(fs, mountName, directoryId);
+            Tick end = fs.Hos.Os.GetSystemTick();
+
+            var idString = new IdString();
+            var sb = new U8StringBuilder(logBuffer, true);
+
+            sb.Append(LogName).Append(mountName).Append(LogQuote)
+                .Append(LogImageDirectoryId).Append(idString.ToString(directoryId));
+
+            fs.Impl.OutputAccessLog(rc, start, end, null, new U8Span(sb.Buffer));
+        }
+        else
+        {
+            rc = Mount(fs, mountName, directoryId);
+        }
+
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        if (fs.Impl.IsEnabledAccessLog(AccessLogTarget.System))
+            fs.Impl.EnableFileSystemAccessorAccessLog(mountName);
+
+        return Result.Success;
+
+        static Result Mount(FileSystemClient fs, U8Span mountName, ImageDirectoryId directoryId)
+        {
+            Result rc = fs.Impl.CheckMountName(mountName);
+            if (rc.IsFailure()) return rc.Miss();
+
+            using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+            using var fileSystem = new SharedRef<IFileSystemSf>();
+
+            rc = fileSystemProxy.Get.OpenImageDirectoryFileSystem(ref fileSystem.Ref(), directoryId);
+            if (rc.IsFailure()) return rc.Miss();
+
+            using var fileSystemAdapter =
+                new UniqueRef<IFileSystem>(new FileSystemServiceObjectAdapter(ref fileSystem.Ref()));
+
+            if (!fileSystemAdapter.HasValue)
+                return ResultFs.AllocationMemoryFailedInImageDirectoryA.Log();
+
+            rc = fs.Impl.Fs.Register(mountName, ref fileSystemAdapter.Ref());
+            if (rc.IsFailure()) return rc.Miss();
+
+            return Result.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/Logo.cs b/src/LibHac/Fs/Shim/Logo.cs
new file mode 100644
index 00000000..03659567
--- /dev/null
+++ b/src/LibHac/Fs/Shim/Logo.cs
@@ -0,0 +1,80 @@
+using System;
+using LibHac.Common;
+using LibHac.Fs.Fsa;
+using LibHac.Fs.Impl;
+using LibHac.FsSrv.Sf;
+using LibHac.Ncm;
+using LibHac.Os;
+using IFileSystem = LibHac.Fs.Fsa.IFileSystem;
+using IFileSystemSf = LibHac.FsSrv.Sf.IFileSystem;
+
+using static LibHac.Fs.Impl.AccessLogStrings;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for opening the logo partitions of NCA files.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class Logo
+{
+    public static Result MountLogo(this FileSystemClient fs, U8Span mountName, U8Span path, ProgramId programId)
+    {
+        Result rc;
+        Span<byte> logBuffer = stackalloc byte[0x300];
+
+        if (fs.Impl.IsEnabledAccessLog(AccessLogTarget.System))
+        {
+            Tick start = fs.Hos.Os.GetSystemTick();
+            rc = Mount(fs, mountName, path, programId);
+            Tick end = fs.Hos.Os.GetSystemTick();
+
+            var sb = new U8StringBuilder(logBuffer, true);
+
+            sb.Append(LogName).Append(mountName).Append(LogQuote)
+                .Append(LogPath).Append(path).Append(LogQuote)
+                .Append(LogProgramId).AppendFormat(programId.Value, 'X');
+
+            fs.Impl.OutputAccessLog(rc, start, end, null, new U8Span(sb.Buffer));
+        }
+        else
+        {
+            rc = Mount(fs, mountName, path, programId);
+        }
+
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        if (fs.Impl.IsEnabledAccessLog(AccessLogTarget.System))
+            fs.Impl.EnableFileSystemAccessorAccessLog(mountName);
+
+        return Result.Success;
+
+        static Result Mount(FileSystemClient fs, U8Span mountName, U8Span path, ProgramId programId)
+        {
+            Result rc = fs.Impl.CheckMountName(mountName);
+            if (rc.IsFailure()) return rc.Miss();
+
+            rc = PathUtility.ConvertToFspPath(out FspPath sfPath, path);
+            if (rc.IsFailure()) return rc;
+
+            using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+            using var fileSystem = new SharedRef<IFileSystemSf>();
+
+            rc = fileSystemProxy.Get.OpenFileSystemWithId(ref fileSystem.Ref(), in sfPath, programId.Value,
+                FileSystemProxyType.Logo);
+            if (rc.IsFailure()) return rc.Miss();
+
+            using var fileSystemAdapter =
+                new UniqueRef<IFileSystem>(new FileSystemServiceObjectAdapter(ref fileSystem.Ref()));
+
+            if (!fileSystemAdapter.HasValue)
+                return ResultFs.AllocationMemoryFailedInLogoA.Log();
+
+            rc = fs.Impl.Fs.Register(mountName, ref fileSystemAdapter.Ref());
+            if (rc.IsFailure()) return rc.Miss();
+
+            return Result.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/MemoryReportInfo.cs b/src/LibHac/Fs/Shim/MemoryReportInfo.cs
new file mode 100644
index 00000000..8aa6fcb1
--- /dev/null
+++ b/src/LibHac/Fs/Shim/MemoryReportInfo.cs
@@ -0,0 +1,22 @@
+using LibHac.Common;
+using LibHac.FsSrv.Sf;
+
+namespace LibHac.Fs.Shim;
+
+/// <summary>
+/// Contains functions for obtaining reports on memory usage from the file system proxy service.
+/// </summary>
+/// <remarks>Based on nnSdk 14.3.0</remarks>
+public static class MemoryReportInfoShim
+{
+    public static Result GetAndClearMemoryReportInfo(this FileSystemClient fs, out MemoryReportInfo reportInfo)
+    {
+        using SharedRef<IFileSystemProxy> fileSystemProxy = fs.Impl.GetFileSystemProxyServiceObject();
+
+        Result rc = fileSystemProxy.Get.GetAndClearMemoryReportInfo(out reportInfo);
+        fs.Impl.AbortIfNeeded(rc);
+        if (rc.IsFailure()) return rc.Miss();
+
+        return Result.Success;
+    }
+}
\ No newline at end of file
diff --git a/src/LibHac/Fs/Shim/SpeedEmulation.cs b/src/LibHac/Fs/Shim/SpeedEmulation.cs
new file mode 100644
index 00000000..a95fb0ae
--- /dev/null
+++ b/src/LibHac/Fs/Shim/SpeedEmulation.cs
@@ -0,0 +1,28 @@
+using System;
+
+namespace LibHac.Fs
+{
+    public enum SpeedEmulationMode
+    {
+        None = 0,
+        Faster = 1,
+        Slower = 2,
+        Random = 3
+    }
+}
+
+namespace LibHac.Fs.Shim
+{
+    public static class SpeedEmulationShim
+    {
+        public static Result SetSpeedEmulationMode(this FileSystemClient fs, SpeedEmulationMode mode)
+        {
+            throw new NotImplementedException();
+        }
+
+        public static Result GetSpeedEmulationMode(this FileSystemClient fs, out SpeedEmulationMode outMode)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file