diff --git a/nx/include/switch/services/fs.h b/nx/include/switch/services/fs.h
index 6a0b87b6..210ac000 100644
--- a/nx/include/switch/services/fs.h
+++ b/nx/include/switch/services/fs.h
@@ -313,6 +313,12 @@ typedef enum {
     FsPriority_Background = 3,
 } FsPriority;
 
+/// For use with fsOpenHostFileSystemWithOption
+typedef enum {
+    FsMountHostOptionFlag_None                = 0,      ///< Host filesystem will be case insensitive.
+    FsMountHostOptionFlag_PseudoCaseSensitive = BIT(0), ///< Host filesystem will be pseudo case sensitive.
+} FsMountHostOption;
+
 /// Initialize fsp-srv. Used automatically during app startup.
 Result fsInitialize(void);
 
@@ -337,6 +343,9 @@ Result fsOpenBisStorage(FsStorage* out, FsBisPartitionId partitionId);
 /// Do not call this directly, see fs_dev.h.
 Result fsOpenSdCardFileSystem(FsFileSystem* out);
 
+Result fsOpenHostFileSystem(FsFileSystem* out, const char *path);
+Result fsOpenHostFileSystemWithOption(FsFileSystem* out, const char *path, u32 flags); ///< [9.0.0+]
+
 Result fsDeleteSaveDataFileSystem(u64 application_id);
 Result fsCreateSaveDataFileSystem(const FsSaveDataAttribute* attr, const FsSaveDataCreationInfo* creation_info, const FsSaveDataMetaInfo* meta);
 Result fsCreateSaveDataFileSystemBySystemSaveDataId(const FsSaveDataAttribute* attr, const FsSaveDataCreationInfo* creation_info);
diff --git a/nx/source/services/fs.c b/nx/source/services/fs.c
index 7667e812..658da25d 100644
--- a/nx/source/services/fs.c
+++ b/nx/source/services/fs.c
@@ -224,6 +224,33 @@ Result fsOpenSdCardFileSystem(FsFileSystem* out) {
     return _fsCmdGetSession(&g_fsSrv, &out->s, 18);
 }
 
+Result fsOpenHostFileSystem(FsFileSystem* out, const char *path) {
+    char tmpstr[FS_MAX_PATH] = {0};
+    strncpy(tmpstr, path, sizeof(tmpstr)-1);
+
+    return _fsObjectDispatch(&g_fsSrv, 17,
+        .buffer_attrs = { SfBufferAttr_HipcPointer | SfBufferAttr_In },
+        .buffers = { { tmpstr, sizeof(tmpstr) } },
+        .out_num_objects = 1,
+        .out_objects = &out->s,
+    );
+}
+
+Result fsOpenHostFileSystemWithOption(FsFileSystem* out, const char *path, u32 flags) {
+    if (hosversionBefore(9,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    char tmpstr[FS_MAX_PATH] = {0};
+    strncpy(tmpstr, path, sizeof(tmpstr)-1);
+
+    return _fsObjectDispatchIn(&g_fsSrv, 36, flags,
+        .buffer_attrs = { SfBufferAttr_HipcPointer | SfBufferAttr_In },
+        .buffers = { { tmpstr, sizeof(tmpstr) } },
+        .out_num_objects = 1,
+        .out_objects = &out->s,
+    );
+}
+
 Result fsDeleteSaveDataFileSystem(u64 application_id) {
     return _fsObjectDispatchIn(&g_fsSrv, 21, application_id);
 }