diff --git a/src/common/std_filesystem.h b/src/common/std_filesystem.h
index 39ac2237d1..40cdb67a74 100644
--- a/src/common/std_filesystem.h
+++ b/src/common/std_filesystem.h
@@ -4,7 +4,7 @@
 
 #pragma once
 
-#ifdef _MSC_VER
+#if _MSC_VER || (__GNUC__ > 8)
 #include <filesystem>
 namespace filesystem = std::filesystem;
 #else
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 48406297ef..c627dc8544 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -8,9 +8,9 @@ add_library(core STATIC
     core_cpu.h
     core_timing.cpp
     core_timing.h
+    file_sys/content_archive.cpp
+    file_sys/content_archive.h
     file_sys/directory.h
-    file_sys/disk_filesystem.cpp
-    file_sys/disk_filesystem.h
     file_sys/errors.h
     file_sys/filesystem.cpp
     file_sys/filesystem.h
@@ -20,15 +20,8 @@ add_library(core STATIC
     file_sys/path_parser.h
     file_sys/program_metadata.cpp
     file_sys/program_metadata.h
-    file_sys/romfs_factory.cpp
-    file_sys/romfs_factory.h
-    file_sys/romfs_filesystem.cpp
-    file_sys/romfs_filesystem.h
-    file_sys/savedata_factory.cpp
-    file_sys/savedata_factory.h
-    file_sys/sdmc_factory.cpp
-    file_sys/sdmc_factory.h
-    file_sys/storage.h
+    file_sys/romfs.cpp
+    file_sys/romfs.h
     file_sys/vfs.cpp
     file_sys/vfs.h
     file_sys/vfs_offset.cpp
diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
new file mode 100644
index 0000000000..4155cb14a9
--- /dev/null
+++ b/src/core/file_sys/content_archive.cpp
@@ -0,0 +1,126 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/file_sys/content_archive.h"
+#include "core/loader/loader.h"
+#include "vfs_offset.h"
+
+// Media offsets in headers are stored divided by 512. Mult. by this to get real offset.
+constexpr u64 MEDIA_OFFSET_MULTIPLIER = 0x200;
+
+constexpr u64 SECTION_HEADER_SIZE = 0x200;
+constexpr u64 SECTION_HEADER_OFFSET = 0x400;
+
+namespace FileSys {
+enum class NcaSectionFilesystemType : u8 { PFS0 = 0x2, ROMFS = 0x3 };
+
+struct NcaSectionHeaderBlock {
+    INSERT_PADDING_BYTES(3);
+    NcaSectionFilesystemType filesystem_type;
+    u8 crypto_type;
+    INSERT_PADDING_BYTES(3);
+};
+static_assert(sizeof(NcaSectionHeaderBlock) == 0x8, "NcaSectionHeaderBlock has incorrect size.");
+
+struct Pfs0Superblock {
+    NcaSectionHeaderBlock header_block;
+    std::array<u8, 0x20> hash;
+    u32_le size;
+    INSERT_PADDING_BYTES(4);
+    u64_le hash_table_offset;
+    u64_le hash_table_size;
+    u64_le pfs0_header_offset;
+    u64_le pfs0_size;
+    INSERT_PADDING_BYTES(432);
+};
+static_assert(sizeof(Pfs0Superblock) == 0x200, "Pfs0Superblock has incorrect size.");
+
+Loader::ResultStatus Nca::Load(v_file file_) {
+    file = std::move(file_);
+
+    if (sizeof(NcaHeader) != file->ReadObject(&header))
+        NGLOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+    if (!IsValidNca(header))
+        return Loader::ResultStatus::ErrorInvalidFormat;
+
+    int number_sections =
+        std::count_if(std::begin(header.section_tables), std::end(header.section_tables),
+                      [](NcaSectionTableEntry entry) { return entry.media_offset > 0; });
+
+    for (int i = 0; i < number_sections; ++i) {
+        // Seek to beginning of this section.
+        NcaSectionHeaderBlock block{};
+        if (sizeof(NcaSectionHeaderBlock) !=
+            file->ReadObject(&block, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE))
+            NGLOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+        if (block.filesystem_type == NcaSectionFilesystemType::ROMFS) {
+            const size_t romfs_offset =
+                header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER;
+            const size_t romfs_size =
+                header.section_tables[i].media_end_offset * MEDIA_OFFSET_MULTIPLIER - romfs_offset;
+            entries.emplace_back(std::make_shared<RomFs>(
+                std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset)));
+            romfs = entries.back();
+        } else if (block.filesystem_type == NcaSectionFilesystemType::PFS0) {
+            Pfs0Superblock sb{};
+            // Seek back to beginning of this section.
+            if (sizeof(Pfs0Superblock) !=
+                file->ReadObject(&sb, SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE))
+                NGLOG_CRITICAL(Loader, "File reader errored out during header read.");
+
+            u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
+                          MEDIA_OFFSET_MULTIPLIER) +
+                         sb.pfs0_header_offset;
+            u64 size = MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset -
+                                                  header.section_tables[i].media_offset);
+            FileSys::PartitionFilesystem npfs{};
+            Loader::ResultStatus status =
+                npfs.Load(std::make_shared<OffsetVfsFile>(file, size, offset));
+
+            if (status == Loader::ResultStatus::Success) {
+                entries.emplace_back(npfs);
+                if (IsDirectoryExeFs(entries.back()))
+                    exefs = entries.back();
+            }
+        }
+    }
+
+    return Loader::ResultStatus::Success;
+}
+
+std::vector<std::shared_ptr<VfsFile>> Nca::GetFiles() const {
+    return {};
+}
+
+std::vector<std::shared_ptr<VfsDirectory>> Nca::GetSubdirectories() const {
+    return entries;
+}
+
+std::string Nca::GetName() const {
+    return file->GetName();
+}
+
+std::shared_ptr<VfsDirectory> Nca::GetParentDirectory() const {
+    return file->GetContainingDirectory();
+}
+
+NcaContentType Nca::GetType() const {
+    return header.content_type;
+}
+
+u64 Nca::GetTitleId() const {
+    return header.title_id;
+}
+
+v_dir Nca::GetRomFs() const {
+    return romfs;
+}
+
+v_dir Nca::GetExeFs() const {
+    return exefs;
+}
+} // namespace FileSys
diff --git a/src/core/file_sys/content_archive.h b/src/core/file_sys/content_archive.h
new file mode 100644
index 0000000000..42dd843e14
--- /dev/null
+++ b/src/core/file_sys/content_archive.h
@@ -0,0 +1,80 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/swap.h"
+#include "partition_filesystem.h"
+
+namespace FileSys {
+
+enum class NcaContentType : u8 { Program = 0, Meta = 1, Control = 2, Manual = 3, Data = 4 };
+
+struct NcaSectionTableEntry {
+    u32_le media_offset;
+    u32_le media_end_offset;
+    INSERT_PADDING_BYTES(0x8);
+};
+static_assert(sizeof(NcaSectionTableEntry) == 0x10, "NcaSectionTableEntry has incorrect size.");
+
+struct NcaHeader {
+    std::array<u8, 0x100> rsa_signature_1;
+    std::array<u8, 0x100> rsa_signature_2;
+    u32_le magic;
+    u8 is_system;
+    NcaContentType content_type;
+    u8 crypto_type;
+    u8 key_index;
+    u64_le size;
+    u64_le title_id;
+    INSERT_PADDING_BYTES(0x4);
+    u32_le sdk_version;
+    u8 crypto_type_2;
+    INSERT_PADDING_BYTES(15);
+    std::array<u8, 0x10> rights_id;
+    std::array<NcaSectionTableEntry, 0x4> section_tables;
+    std::array<std::array<u8, 0x20>, 0x4> hash_tables;
+    std::array<std::array<u8, 0x10>, 0x4> key_area;
+    INSERT_PADDING_BYTES(0xC0);
+};
+static_assert(sizeof(NcaHeader) == 0x400, "NcaHeader has incorrect size.");
+
+static bool IsDirectoryExeFs(std::shared_ptr<FileSys::VfsDirectory> pfs) {
+    // According to switchbrew, an exefs must only contain these two files:
+    return pfs->GetFile("main") != nullptr && pfs->GetFile("main.ndpm") != nullptr;
+}
+
+static bool IsValidNca(const NcaHeader& header) {
+    return header.magic == Common::MakeMagic('N', 'C', 'A', '2') ||
+           header.magic == Common::MakeMagic('N', 'C', 'A', '3');
+}
+
+class Nca : public ReadOnlyVfsDirectory {
+    std::vector<v_dir> entries;
+    std::vector<u64> entry_offset;
+
+    v_dir romfs = nullptr;
+    v_dir exefs = nullptr;
+    v_file file;
+
+    NcaHeader header{};
+
+public:
+    Loader::ResultStatus Load(v_file file);
+
+    std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
+    std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
+    std::string GetName() const override;
+    std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
+
+    NcaContentType GetType() const;
+    u64 GetTitleId() const;
+
+    v_dir GetRomFs() const;
+    v_dir GetExeFs() const;
+};
+
+} // namespace FileSys
diff --git a/src/core/file_sys/disk_filesystem.cpp b/src/core/file_sys/disk_filesystem.cpp
deleted file mode 100644
index 8c6f15bb5c..0000000000
--- a/src/core/file_sys/disk_filesystem.cpp
+++ /dev/null
@@ -1,237 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <cstring>
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/errors.h"
-
-namespace FileSys {
-
-static std::string ModeFlagsToString(Mode mode) {
-    std::string mode_str;
-    u32 mode_flags = static_cast<u32>(mode);
-
-    // Calculate the correct open mode for the file.
-    if ((mode_flags & static_cast<u32>(Mode::Read)) &&
-        (mode_flags & static_cast<u32>(Mode::Write))) {
-        if (mode_flags & static_cast<u32>(Mode::Append))
-            mode_str = "a+";
-        else
-            mode_str = "r+";
-    } else {
-        if (mode_flags & static_cast<u32>(Mode::Read))
-            mode_str = "r";
-        else if (mode_flags & static_cast<u32>(Mode::Append))
-            mode_str = "a";
-        else if (mode_flags & static_cast<u32>(Mode::Write))
-            mode_str = "w";
-    }
-
-    mode_str += "b";
-
-    return mode_str;
-}
-
-std::string Disk_FileSystem::GetName() const {
-    return "Disk";
-}
-
-ResultVal<std::unique_ptr<StorageBackend>> Disk_FileSystem::OpenFile(const std::string& path,
-                                                                     Mode mode) const {
-
-    // Calculate the correct open mode for the file.
-    std::string mode_str = ModeFlagsToString(mode);
-
-    std::string full_path = base_directory + path;
-    auto file = std::make_shared<FileUtil::IOFile>(full_path, mode_str.c_str());
-
-    if (!file->IsOpen()) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    return MakeResult<std::unique_ptr<StorageBackend>>(
-        std::make_unique<Disk_Storage>(std::move(file)));
-}
-
-ResultCode Disk_FileSystem::DeleteFile(const std::string& path) const {
-    if (!FileUtil::Exists(path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    FileUtil::Delete(path);
-
-    return RESULT_SUCCESS;
-}
-
-ResultCode Disk_FileSystem::RenameFile(const std::string& src_path,
-                                       const std::string& dest_path) const {
-    const std::string full_src_path = base_directory + src_path;
-    const std::string full_dest_path = base_directory + dest_path;
-
-    if (!FileUtil::Exists(full_src_path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-    // TODO(wwylele): Use correct error code
-    return FileUtil::Rename(full_src_path, full_dest_path) ? RESULT_SUCCESS : ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::DeleteDirectory(const Path& path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-
-    std::string full_path = base_directory + path;
-    if (size == 0) {
-        FileUtil::CreateEmptyFile(full_path);
-        return RESULT_SUCCESS;
-    }
-
-    FileUtil::IOFile file(full_path, "wb");
-    // Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
-    // We do this by seeking to the right size, then writing a single null byte.
-    if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) {
-        return RESULT_SUCCESS;
-    }
-
-    LOG_ERROR(Service_FS, "Too large file");
-    // TODO(Subv): Find out the correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::CreateDirectory(const std::string& path) const {
-    // TODO(Subv): Perform path validation to prevent escaping the emulator sandbox.
-    std::string full_path = base_directory + path;
-
-    if (FileUtil::CreateDir(full_path)) {
-        return RESULT_SUCCESS;
-    }
-
-    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", full_path);
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-    // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
-}
-
-ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory(
-    const std::string& path) const {
-
-    std::string full_path = base_directory + path;
-
-    if (!FileUtil::IsDirectory(full_path)) {
-        // TODO(Subv): Find the correct error code for this.
-        return ResultCode(-1);
-    }
-
-    auto directory = std::make_unique<Disk_Directory>(full_path);
-    return MakeResult<std::unique_ptr<DirectoryBackend>>(std::move(directory));
-}
-
-u64 Disk_FileSystem::GetFreeSpaceSize() const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-    return 0;
-}
-
-ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& path) const {
-    std::string full_path = base_directory + path;
-    if (!FileUtil::Exists(full_path)) {
-        return ERROR_PATH_NOT_FOUND;
-    }
-
-    if (FileUtil::IsDirectory(full_path))
-        return MakeResult(EntryType::Directory);
-
-    return MakeResult(EntryType::File);
-}
-
-ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
-    LOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
-    file->Seek(offset, SEEK_SET);
-    return MakeResult<size_t>(file->ReadBytes(buffer, length));
-}
-
-ResultVal<size_t> Disk_Storage::Write(const u64 offset, const size_t length, const bool flush,
-                                      const u8* buffer) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
-    file->Seek(offset, SEEK_SET);
-    size_t written = file->WriteBytes(buffer, length);
-    if (flush) {
-        file->Flush();
-    }
-    return MakeResult<size_t>(written);
-}
-
-u64 Disk_Storage::GetSize() const {
-    return file->GetSize();
-}
-
-bool Disk_Storage::SetSize(const u64 size) const {
-    file->Resize(size);
-    file->Flush();
-    return true;
-}
-
-Disk_Directory::Disk_Directory(const std::string& path) {
-    unsigned size = FileUtil::ScanDirectoryTree(path, directory);
-    directory.size = size;
-    directory.isDirectory = true;
-    children_iterator = directory.children.begin();
-}
-
-u64 Disk_Directory::Read(const u64 count, Entry* entries) {
-    u64 entries_read = 0;
-
-    while (entries_read < count && children_iterator != directory.children.cend()) {
-        const FileUtil::FSTEntry& file = *children_iterator;
-        const std::string& filename = file.virtualName;
-        Entry& entry = entries[entries_read];
-
-        LOG_TRACE(Service_FS, "File {}: size={} dir={}", filename, file.size, file.isDirectory);
-
-        // TODO(Link Mauve): use a proper conversion to UTF-16.
-        for (size_t j = 0; j < FILENAME_LENGTH; ++j) {
-            entry.filename[j] = filename[j];
-            if (!filename[j])
-                break;
-        }
-
-        if (file.isDirectory) {
-            entry.file_size = 0;
-            entry.type = EntryType::Directory;
-        } else {
-            entry.file_size = file.size;
-            entry.type = EntryType::File;
-        }
-
-        ++entries_read;
-        ++children_iterator;
-    }
-    return entries_read;
-}
-
-u64 Disk_Directory::GetEntryCount() const {
-    // We convert the children iterator into a const_iterator to allow template argument deduction
-    // in std::distance.
-    std::vector<FileUtil::FSTEntry>::const_iterator current = children_iterator;
-    return std::distance(current, directory.children.end());
-}
-
-} // namespace FileSys
diff --git a/src/core/file_sys/disk_filesystem.h b/src/core/file_sys/disk_filesystem.h
deleted file mode 100644
index 591e39fdac..0000000000
--- a/src/core/file_sys/disk_filesystem.h
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <cstddef>
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/directory.h"
-#include "core/file_sys/filesystem.h"
-#include "core/file_sys/storage.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-class Disk_FileSystem : public FileSystemBackend {
-public:
-    explicit Disk_FileSystem(std::string base_directory)
-        : base_directory(std::move(base_directory)) {}
-
-    std::string GetName() const override;
-
-    ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
-                                                        Mode mode) const override;
-    ResultCode DeleteFile(const std::string& path) const override;
-    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const std::string& path, u64 size) const override;
-    ResultCode CreateDirectory(const std::string& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
-    ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(
-        const std::string& path) const override;
-    u64 GetFreeSpaceSize() const override;
-    ResultVal<EntryType> GetEntryType(const std::string& path) const override;
-
-protected:
-    std::string base_directory;
-};
-
-class Disk_Storage : public StorageBackend {
-public:
-    explicit Disk_Storage(std::shared_ptr<FileUtil::IOFile> file) : file(std::move(file)) {}
-
-    ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
-    ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
-    u64 GetSize() const override;
-    bool SetSize(u64 size) const override;
-    bool Close() const override {
-        return false;
-    }
-    void Flush() const override {}
-
-private:
-    std::shared_ptr<FileUtil::IOFile> file;
-};
-
-class Disk_Directory : public DirectoryBackend {
-public:
-    explicit Disk_Directory(const std::string& path);
-
-    ~Disk_Directory() override {
-        Close();
-    }
-
-    u64 Read(const u64 count, Entry* entries) override;
-    u64 GetEntryCount() const override;
-
-    bool Close() const override {
-        return true;
-    }
-
-protected:
-    FileUtil::FSTEntry directory;
-
-    // We need to remember the last entry we returned, so a subsequent call to Read will continue
-    // from the next one. This iterator will always point to the next unread entry.
-    std::vector<FileUtil::FSTEntry>::iterator children_iterator;
-};
-
-} // namespace FileSys
diff --git a/src/core/file_sys/filesystem.h b/src/core/file_sys/filesystem.h
index 295a3133e7..bf25045e8a 100644
--- a/src/core/file_sys/filesystem.h
+++ b/src/core/file_sys/filesystem.h
@@ -75,98 +75,6 @@ struct ArchiveFormatInfo {
 };
 static_assert(std::is_pod<ArchiveFormatInfo>::value, "ArchiveFormatInfo is not POD");
 
-class FileSystemBackend : NonCopyable {
-public:
-    virtual ~FileSystemBackend() {}
-
-    /**
-     * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
-     */
-    virtual std::string GetName() const = 0;
-
-    /**
-     * Create a file specified by its path
-     * @param path Path relative to the Archive
-     * @param size The size of the new file, filled with zeroes
-     * @return Result of the operation
-     */
-    virtual ResultCode CreateFile(const std::string& path, u64 size) const = 0;
-
-    /**
-     * Delete a file specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteFile(const std::string& path) const = 0;
-
-    /**
-     * Create a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode CreateDirectory(const std::string& path) const = 0;
-
-    /**
-     * Delete a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteDirectory(const Path& path) const = 0;
-
-    /**
-     * Delete a directory specified by its path and anything under it
-     * @param path Path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode DeleteDirectoryRecursively(const Path& path) const = 0;
-
-    /**
-     * Rename a File specified by its path
-     * @param src_path Source path relative to the archive
-     * @param dest_path Destination path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode RenameFile(const std::string& src_path,
-                                  const std::string& dest_path) const = 0;
-
-    /**
-     * Rename a Directory specified by its path
-     * @param src_path Source path relative to the archive
-     * @param dest_path Destination path relative to the archive
-     * @return Result of the operation
-     */
-    virtual ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const = 0;
-
-    /**
-     * Open a file specified by its path, using the specified mode
-     * @param path Path relative to the archive
-     * @param mode Mode to open the file with
-     * @return Opened file, or error code
-     */
-    virtual ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
-                                                                Mode mode) const = 0;
-
-    /**
-     * Open a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Opened directory, or error code
-     */
-    virtual ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(
-        const std::string& path) const = 0;
-
-    /**
-     * Get the free space
-     * @return The number of free bytes in the archive
-     */
-    virtual u64 GetFreeSpaceSize() const = 0;
-
-    /**
-     * Get the type of the specified path
-     * @return The type of the specified path or error code
-     */
-    virtual ResultVal<EntryType> GetEntryType(const std::string& path) const = 0;
-};
-
 class FileSystemFactory : NonCopyable {
 public:
     virtual ~FileSystemFactory() {}
diff --git a/src/core/file_sys/partition_filesystem.cpp b/src/core/file_sys/partition_filesystem.cpp
index 2a8eb71313..8a713ea81d 100644
--- a/src/core/file_sys/partition_filesystem.cpp
+++ b/src/core/file_sys/partition_filesystem.cpp
@@ -16,7 +16,6 @@ Loader::ResultStatus PartitionFilesystem::Load(std::shared_ptr<VfsFile> file) {
     if (file->GetSize() < sizeof(Header))
         return Loader::ResultStatus::Error;
 
-    file.Seek(offset, SEEK_SET);
     // For cartridges, HFSs can get very large, so we need to calculate the size up to
     // the actual content itself instead of just blindly reading in the entire file.
     Header pfs_header;
@@ -44,7 +43,7 @@ Loader::ResultStatus PartitionFilesystem::Load(std::shared_ptr<VfsFile> file) {
     if (total_size < sizeof(Header))
         return Loader::ResultStatus::Error;
 
-    memcpy(&pfs_header, &file_data[offset], sizeof(Header));
+    memcpy(&pfs_header, &file_data, sizeof(Header));
     if (pfs_header.magic != Common::MakeMagic('H', 'F', 'S', '0') &&
         pfs_header.magic != Common::MakeMagic('P', 'F', 'S', '0')) {
         return Loader::ResultStatus::ErrorInvalidFormat;
@@ -52,7 +51,7 @@ Loader::ResultStatus PartitionFilesystem::Load(std::shared_ptr<VfsFile> file) {
 
     is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0');
 
-    size_t entries_offset = offset + sizeof(Header);
+    size_t entries_offset = sizeof(Header);
     size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
     content_offset = strtab_offset + pfs_header.strtab_size;
     for (u16 i = 0; i < pfs_header.num_entries; i++) {
@@ -77,14 +76,6 @@ std::vector<std::shared_ptr<VfsDirectory>> PartitionFilesystem::GetSubdirectorie
     return {};
 }
 
-bool PartitionFilesystem::IsWritable() const {
-    return false;
-}
-
-bool PartitionFilesystem::IsReadable() const {
-    return true;
-}
-
 std::string PartitionFilesystem::GetName() const {
     return is_hfs ? "HFS0" : "PFS0";
 }
@@ -94,28 +85,8 @@ std::shared_ptr<VfsDirectory> PartitionFilesystem::GetParentDirectory() const {
     return nullptr;
 }
 
-std::shared_ptr<VfsDirectory> PartitionFilesystem::CreateSubdirectory(const std::string& name) {
-    return nullptr;
-}
-
-std::shared_ptr<VfsFile> PartitionFilesystem::CreateFile(const std::string& name) {
-    return nullptr;
-}
-
-bool PartitionFilesystem::DeleteSubdirectory(const std::string& name) {
-    return false;
-}
-
-bool PartitionFilesystem::DeleteFile(const std::string& name) {
-    return false;
-}
-
-bool PartitionFilesystem::Rename(const std::string& name) {
-    return false;
-}
-
 void PartitionFilesystem::PrintDebugInfo() const {
-    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", pfs_header.magic.data());
+    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", pfs_header.magic);
     NGLOG_DEBUG(Service_FS, "Files:                  {}", pfs_header.num_entries);
     for (u32 i = 0; i < pfs_header.num_entries; i++) {
         NGLOG_DEBUG(Service_FS, " > File {}:              {} (0x{:X} bytes, at 0x{:X})", i,
@@ -123,4 +94,17 @@ void PartitionFilesystem::PrintDebugInfo() const {
                     dynamic_cast<OffsetVfsFile*>(pfs_files[i].get())->GetOffset());
     }
 }
+
+bool PartitionFilesystem::ReplaceFileWithSubdirectory(v_file file, v_dir dir) {
+    auto iter = std::find(pfs_files.begin(), pfs_files.end(), file);
+    if (iter == pfs_files.end())
+        return false;
+
+    pfs_files[iter - pfs_files.begin()] = pfs_files.back();
+    pfs_files.pop_back();
+
+    pfs_dirs.emplace_back(dir);
+
+    return true;
+}
 } // namespace FileSys
diff --git a/src/core/file_sys/partition_filesystem.h b/src/core/file_sys/partition_filesystem.h
index abee28b4b1..19fa08d025 100644
--- a/src/core/file_sys/partition_filesystem.h
+++ b/src/core/file_sys/partition_filesystem.h
@@ -22,24 +22,19 @@ namespace FileSys {
  * Helper which implements an interface to parse PFS/HFS filesystems.
  * Data can either be loaded from a file path or data with an offset into it.
  */
-class PartitionFilesystem : public VfsDirectory {
+class PartitionFilesystem : public ReadOnlyVfsDirectory {
 public:
     Loader::ResultStatus Load(std::shared_ptr<VfsFile> file);
 
     std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
     std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
-    bool IsWritable() const override;
-    bool IsReadable() const override;
     std::string GetName() const override;
     std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
-    std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
-    std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
-    bool DeleteSubdirectory(const std::string& name) override;
-    bool DeleteFile(const std::string& name) override;
-    bool Rename(const std::string& name) override;
-
     void PrintDebugInfo() const;
 
+protected:
+    bool ReplaceFileWithSubdirectory(v_file file, v_dir dir) override;
+
 private:
     struct Header {
         u32_le magic;
@@ -81,7 +76,8 @@ private:
     bool is_hfs;
     size_t content_offset;
 
-    std::vector<std::shared_ptr<VfsFile>> pfs_files;
+    std::vector<v_file> pfs_files;
+    std::vector<v_dir> pfs_dirs;
 };
 
 } // namespace FileSys
diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp
index 2268111158..9dfa71548e 100644
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -9,40 +9,23 @@
 
 namespace FileSys {
 
-Loader::ResultStatus ProgramMetadata::Load(const std::string& file_path) {
-    FileUtil::IOFile file(file_path, "rb");
-    if (!file.IsOpen())
-        return Loader::ResultStatus::Error;
-
-    std::vector<u8> file_data(file.GetSize());
-
-    if (!file.ReadBytes(file_data.data(), file_data.size()))
-        return Loader::ResultStatus::Error;
-
-    Loader::ResultStatus result = Load(file_data);
-    if (result != Loader::ResultStatus::Success)
-        LOG_ERROR(Service_FS, "Failed to load NPDM from file {}!", file_path);
-
-    return result;
-}
-
-Loader::ResultStatus ProgramMetadata::Load(const std::vector<u8> file_data, size_t offset) {
-    size_t total_size = static_cast<size_t>(file_data.size() - offset);
+Loader::ResultStatus ProgramMetadata::Load(v_file file) {
+    size_t total_size = static_cast<size_t>(file->GetSize());
     if (total_size < sizeof(Header))
         return Loader::ResultStatus::Error;
 
-    size_t header_offset = offset;
-    memcpy(&npdm_header, &file_data[offset], sizeof(Header));
+    if (sizeof(Header) != file->ReadObject(&npdm_header))
+        return Loader::ResultStatus::Error;
 
-    size_t aci_offset = header_offset + npdm_header.aci_offset;
-    size_t acid_offset = header_offset + npdm_header.acid_offset;
-    memcpy(&aci_header, &file_data[aci_offset], sizeof(AciHeader));
-    memcpy(&acid_header, &file_data[acid_offset], sizeof(AcidHeader));
+    if (sizeof(AciHeader) != file->ReadObject(&aci_header, npdm_header.aci_offset))
+        return Loader::ResultStatus::Error;
+    if (sizeof(AcidHeader) != file->ReadObject(&acid_header, npdm_header.acid_offset))
+        return Loader::ResultStatus::Error;
 
-    size_t fac_offset = acid_offset + acid_header.fac_offset;
-    size_t fah_offset = aci_offset + aci_header.fah_offset;
-    memcpy(&acid_file_access, &file_data[fac_offset], sizeof(FileAccessControl));
-    memcpy(&aci_file_access, &file_data[fah_offset], sizeof(FileAccessHeader));
+    if (sizeof(FileAccessControl) != file->ReadObject(&acid_file_access, acid_header.fac_offset))
+        return Loader::ResultStatus::Error;
+    if (sizeof(FileAccessHeader) != file->ReadObject(&aci_file_access, aci_header.fah_offset))
+        return Loader::ResultStatus::Error;
 
     return Loader::ResultStatus::Success;
 }
diff --git a/src/core/file_sys/program_metadata.h b/src/core/file_sys/program_metadata.h
index b80a084857..592dc96b79 100644
--- a/src/core/file_sys/program_metadata.h
+++ b/src/core/file_sys/program_metadata.h
@@ -10,6 +10,7 @@
 #include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "partition_filesystem.h"
 
 namespace Loader {
 enum class ResultStatus;
@@ -37,8 +38,7 @@ enum class ProgramFilePermission : u64 {
  */
 class ProgramMetadata {
 public:
-    Loader::ResultStatus Load(const std::string& file_path);
-    Loader::ResultStatus Load(const std::vector<u8> file_data, size_t offset = 0);
+    Loader::ResultStatus Load(v_file file);
 
     bool Is64BitProgram() const;
     ProgramAddressSpaceType GetAddressSpaceType() const;
diff --git a/src/core/file_sys/romfs.cpp b/src/core/file_sys/romfs.cpp
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/src/core/file_sys/romfs.h b/src/core/file_sys/romfs.h
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/src/core/file_sys/romfs_factory.cpp b/src/core/file_sys/romfs_factory.cpp
deleted file mode 100644
index 84ae0d99b3..0000000000
--- a/src/core/file_sys/romfs_factory.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/file_sys/romfs_factory.h"
-#include "core/file_sys/romfs_filesystem.h"
-
-namespace FileSys {
-
-RomFS_Factory::RomFS_Factory(Loader::AppLoader& app_loader) {
-    // Load the RomFS from the app
-    if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) {
-        LOG_ERROR(Service_FS, "Unable to read RomFS!");
-    }
-}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> RomFS_Factory::Open(const Path& path) {
-    auto archive = std::make_unique<RomFS_FileSystem>(romfs_file, data_offset, data_size);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode RomFS_Factory::Format(const Path& path) {
-    LOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-ResultVal<ArchiveFormatInfo> RomFS_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-} // namespace FileSys
diff --git a/src/core/file_sys/romfs_factory.h b/src/core/file_sys/romfs_factory.h
deleted file mode 100644
index e0698e6429..0000000000
--- a/src/core/file_sys/romfs_factory.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include <vector>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-#include "core/loader/loader.h"
-
-namespace FileSys {
-
-/// File system interface to the RomFS archive
-class RomFS_Factory final : public FileSystemFactory {
-public:
-    explicit RomFS_Factory(Loader::AppLoader& app_loader);
-
-    std::string GetName() const override {
-        return "ArchiveFactory_RomFS";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::shared_ptr<FileUtil::IOFile> romfs_file;
-    u64 data_offset;
-    u64 data_size;
-};
-
-} // namespace FileSys
diff --git a/src/core/file_sys/romfs_filesystem.h b/src/core/file_sys/romfs_filesystem.h
index ba9d85823b..64be39abe4 100644
--- a/src/core/file_sys/romfs_filesystem.h
+++ b/src/core/file_sys/romfs_filesystem.h
@@ -14,6 +14,7 @@
 #include "core/file_sys/filesystem.h"
 #include "core/file_sys/storage.h"
 #include "core/hle/result.h"
+#include "core/hle/service/filesystem/filesystem.h"
 
 namespace FileSys {
 
diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp
deleted file mode 100644
index d78baf9c37..0000000000
--- a/src/core/file_sys/savedata_factory.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/savedata_factory.h"
-#include "core/hle/kernel/process.h"
-
-namespace FileSys {
-
-SaveData_Factory::SaveData_Factory(std::string nand_directory)
-    : nand_directory(std::move(nand_directory)) {}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> SaveData_Factory::Open(const Path& path) {
-    std::string save_directory = GetFullPath();
-    // Return an error if the save data doesn't actually exist.
-    if (!FileUtil::IsDirectory(save_directory)) {
-        // TODO(Subv): Find out correct error code.
-        return ResultCode(-1);
-    }
-
-    auto archive = std::make_unique<Disk_FileSystem>(save_directory);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode SaveData_Factory::Format(const Path& path) {
-    LOG_WARNING(Service_FS, "Format archive {}", GetName());
-    // Create the save data directory.
-    if (!FileUtil::CreateFullPath(GetFullPath())) {
-        // TODO(Subv): Find the correct error code.
-        return ResultCode(-1);
-    }
-
-    return RESULT_SUCCESS;
-}
-
-ResultVal<ArchiveFormatInfo> SaveData_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-std::string SaveData_Factory::GetFullPath() const {
-    u64 title_id = Core::CurrentProcess()->program_id;
-    // TODO(Subv): Somehow obtain this value.
-    u32 user = 0;
-    return fmt::format("{}save/{:016X}/{:08X}/", nand_directory, title_id, user);
-}
-
-} // namespace FileSys
diff --git a/src/core/file_sys/savedata_factory.h b/src/core/file_sys/savedata_factory.h
deleted file mode 100644
index 73a42aab6e..0000000000
--- a/src/core/file_sys/savedata_factory.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-/// File system interface to the SaveData archive
-class SaveData_Factory final : public FileSystemFactory {
-public:
-    explicit SaveData_Factory(std::string nand_directory);
-
-    std::string GetName() const override {
-        return "SaveData_Factory";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::string nand_directory;
-
-    std::string GetFullPath() const;
-};
-
-} // namespace FileSys
diff --git a/src/core/file_sys/sdmc_factory.cpp b/src/core/file_sys/sdmc_factory.cpp
deleted file mode 100644
index 2e5ffb764e..0000000000
--- a/src/core/file_sys/sdmc_factory.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <memory>
-#include "common/common_types.h"
-#include "common/logging/log.h"
-#include "common/string_util.h"
-#include "core/core.h"
-#include "core/file_sys/disk_filesystem.h"
-#include "core/file_sys/sdmc_factory.h"
-
-namespace FileSys {
-
-SDMC_Factory::SDMC_Factory(std::string sd_directory) : sd_directory(std::move(sd_directory)) {}
-
-ResultVal<std::unique_ptr<FileSystemBackend>> SDMC_Factory::Open(const Path& path) {
-    // Create the SD Card directory if it doesn't already exist.
-    if (!FileUtil::IsDirectory(sd_directory)) {
-        FileUtil::CreateFullPath(sd_directory);
-    }
-
-    auto archive = std::make_unique<Disk_FileSystem>(sd_directory);
-    return MakeResult<std::unique_ptr<FileSystemBackend>>(std::move(archive));
-}
-
-ResultCode SDMC_Factory::Format(const Path& path) {
-    LOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
-    // TODO(Subv): Find the right error code for this
-    return ResultCode(-1);
-}
-
-ResultVal<ArchiveFormatInfo> SDMC_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    // TODO(bunnei): Find the right error code for this
-    return ResultCode(-1);
-}
-
-} // namespace FileSys
diff --git a/src/core/file_sys/sdmc_factory.h b/src/core/file_sys/sdmc_factory.h
deleted file mode 100644
index 93becda255..0000000000
--- a/src/core/file_sys/sdmc_factory.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include <string>
-#include "common/common_types.h"
-#include "core/file_sys/filesystem.h"
-#include "core/hle/result.h"
-
-namespace FileSys {
-
-/// File system interface to the SDCard archive
-class SDMC_Factory final : public FileSystemFactory {
-public:
-    explicit SDMC_Factory(std::string sd_directory);
-
-    std::string GetName() const override {
-        return "SDMC_Factory";
-    }
-    ResultVal<std::unique_ptr<FileSystemBackend>> Open(const Path& path) override;
-    ResultCode Format(const Path& path) override;
-    ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path) const override;
-
-private:
-    std::string sd_directory;
-};
-
-} // namespace FileSys
diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp
index d602873e07..af31148430 100644
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -10,6 +10,14 @@ namespace FileSys {
 
 VfsFile::~VfsFile() = default;
 
+std::string VfsFile::GetExtension() const {
+    size_t index = GetName().find_last_of('.');
+    if (index == std::string::npos)
+        return "";
+    else
+        return GetName().substr(index + 1);
+}
+
 VfsDirectory::~VfsDirectory() = default;
 
 boost::optional<u8> VfsFile::ReadByte(size_t offset) const {
@@ -108,4 +116,31 @@ bool VfsDirectory::Copy(const std::string& src, const std::string& dest) {
     return f2->WriteBytes(f1->ReadAllBytes()) == f1->GetSize();
 }
 
+bool ReadOnlyVfsDirectory::IsWritable() const {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::IsReadable() const {
+    return true;
+}
+
+std::shared_ptr<VfsDirectory> ReadOnlyVfsDirectory::CreateSubdirectory(const std::string& name) {
+    return nullptr;
+}
+
+std::shared_ptr<VfsFile> ReadOnlyVfsDirectory::CreateFile(const std::string& name) {
+    return nullptr;
+}
+
+bool ReadOnlyVfsDirectory::DeleteSubdirectory(const std::string& name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::DeleteFile(const std::string& name) {
+    return false;
+}
+
+bool ReadOnlyVfsDirectory::Rename(const std::string& name) {
+    return false;
+}
 } // namespace FileSys
diff --git a/src/core/file_sys/vfs.h b/src/core/file_sys/vfs.h
index f5bb12b143..637b9139b2 100644
--- a/src/core/file_sys/vfs.h
+++ b/src/core/file_sys/vfs.h
@@ -13,12 +13,20 @@
 #include "common/std_filesystem.h"
 
 namespace FileSys {
+struct VfsFile;
 struct VfsDirectory;
+} // namespace FileSys
+
+using v_dir = std::shared_ptr<FileSys::VfsDirectory>;
+using v_file = std::shared_ptr<FileSys::VfsFile>;
+
+namespace FileSys {
 
 struct VfsFile : NonCopyable {
     virtual ~VfsFile();
 
     virtual std::string GetName() const = 0;
+    virtual std::string GetExtension() const;
     virtual size_t GetSize() const = 0;
     virtual bool Resize(size_t new_size) = 0;
     virtual std::shared_ptr<VfsDirectory> GetContainingDirectory() const = 0;
@@ -113,5 +121,23 @@ struct VfsDirectory : NonCopyable {
     virtual bool Rename(const std::string& name) = 0;
 
     virtual bool Copy(const std::string& src, const std::string& dest);
+
+    template <typename Directory>
+    bool InterpretAsDirectory(v_file file) {
+        return ReplaceFileWithSubdirectory(file, std::make_shared<Directory>(file));
+    }
+
+protected:
+    virtual bool ReplaceFileWithSubdirectory(v_file file, v_dir dir) = 0;
+};
+
+struct ReadOnlyVfsDirectory : public VfsDirectory {
+    bool IsWritable() const override;
+    bool IsReadable() const override;
+    std::shared_ptr<VfsDirectory> CreateSubdirectory(const std::string& name) override;
+    std::shared_ptr<VfsFile> CreateFile(const std::string& name) override;
+    bool DeleteSubdirectory(const std::string& name) override;
+    bool DeleteFile(const std::string& name) override;
+    bool Rename(const std::string& name) override;
 };
 } // namespace FileSys
diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp
index eb7feb617e..10d0529412 100644
--- a/src/core/loader/deconstructed_rom_directory.cpp
+++ b/src/core/loader/deconstructed_rom_directory.cpp
@@ -8,6 +8,7 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "common/string_util.h"
+#include "core/file_sys/content_archive.h"
 #include "core/file_sys/romfs_factory.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
@@ -46,55 +47,11 @@ static std::string FindRomFS(const std::string& directory) {
     return filepath_romfs;
 }
 
-AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file,
-                                                                         std::string filepath)
-    : AppLoader(std::move(file)), filepath(std::move(filepath)) {}
+AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(v_file file)
+    : AppLoader(file) {}
 
-FileType AppLoader_DeconstructedRomDirectory::IdentifyType(FileUtil::IOFile& file,
-                                                           const std::string& filepath) {
-    bool is_main_found{};
-    bool is_npdm_found{};
-    bool is_rtld_found{};
-    bool is_sdk_found{};
-
-    const auto callback = [&](unsigned* num_entries_out, const std::string& directory,
-                              const std::string& virtual_name) -> bool {
-        // Skip directories
-        std::string physical_name = directory + virtual_name;
-        if (FileUtil::IsDirectory(physical_name)) {
-            return true;
-        }
-
-        // Verify filename
-        if (Common::ToLower(virtual_name) == "main") {
-            is_main_found = true;
-        } else if (Common::ToLower(virtual_name) == "main.npdm") {
-            is_npdm_found = true;
-            return true;
-        } else if (Common::ToLower(virtual_name) == "rtld") {
-            is_rtld_found = true;
-        } else if (Common::ToLower(virtual_name) == "sdk") {
-            is_sdk_found = true;
-        } else {
-            // Continue searching
-            return true;
-        }
-
-        // Verify file is an NSO
-        FileUtil::IOFile file(physical_name, "rb");
-        if (AppLoader_NSO::IdentifyType(file, physical_name) != FileType::NSO) {
-            return false;
-        }
-
-        // We are done if we've found and verified all required NSOs
-        return !(is_main_found && is_npdm_found && is_rtld_found && is_sdk_found);
-    };
-
-    // Search the directory recursively, looking for the required modules
-    const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP;
-    FileUtil::ForeachDirectoryEntry(nullptr, directory, callback);
-
-    if (is_main_found && is_npdm_found && is_rtld_found && is_sdk_found) {
+FileType AppLoader_DeconstructedRomDirectory::IdentifyType(v_file file) {
+    if (FileSys::IsDirectoryExeFs(file->GetContainingDirectory())) {
         return FileType::DeconstructedRomDirectory;
     }
 
@@ -106,14 +63,13 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
     if (is_loaded) {
         return ResultStatus::ErrorAlreadyLoaded;
     }
-    if (!file.IsOpen()) {
-        return ResultStatus::Error;
-    }
 
-    const std::string directory = filepath.substr(0, filepath.find_last_of("/\\")) + DIR_SEP;
-    const std::string npdm_path = directory + DIR_SEP + "main.npdm";
+    const v_dir dir = file->GetContainingDirectory();
+    const v_file npdm = dir->GetFile("main.npdm");
+    if (npdm == nullptr)
+        return ResultStatus::ErrorInvalidFormat;
 
-    ResultStatus result = metadata.Load(npdm_path);
+    ResultStatus result = metadata.Load(npdm);
     if (result != ResultStatus::Success) {
         return result;
     }
@@ -128,9 +84,10 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
     VAddr next_load_addr{Memory::PROCESS_IMAGE_VADDR};
     for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
                                "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
-        const std::string path = directory + DIR_SEP + module;
         const VAddr load_addr = next_load_addr;
-        next_load_addr = AppLoader_NSO::LoadModule(path, load_addr);
+        const v_file module_file = dir->GetFile(module);
+        if (module_file != nullptr)
+            next_load_addr = AppLoader_NSO::LoadModule(module_file, load_addr);
         if (next_load_addr) {
             LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
         } else {
@@ -147,10 +104,16 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
                  metadata.GetMainThreadStackSize());
 
     // Find the RomFS by searching for a ".romfs" file in this directory
-    filepath_romfs = FindRomFS(directory);
+    const auto romfs_iter =
+        std::find_if(dir->GetFiles().begin(), dir->GetFiles().end(), [](const v_file& file) {
+            return file->GetName().find(".romfs") != std::string::npos;
+        });
+
+    // TODO(DarkLordZach): Identify RomFS if its a subdirectory.
+    romfs = std::make_shared<RomFs>((romfs_iter == dir->GetFiles().end()) ? nullptr : *romfs_iter);
 
     // Register the RomFS if a ".romfs" file was found
-    if (!filepath_romfs.empty()) {
+    if (romfs != nullptr) {
         Service::FileSystem::RegisterFileSystem(std::make_unique<FileSys::RomFS_Factory>(*this),
                                                 Service::FileSystem::Type::RomFS);
     }
@@ -159,28 +122,14 @@ ResultStatus AppLoader_DeconstructedRomDirectory::Load(
     return ResultStatus::Success;
 }
 
-ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS(
-    std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset, u64& size) {
+ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS(v_dir& dir) {
 
     if (filepath_romfs.empty()) {
         LOG_DEBUG(Loader, "No RomFS available");
         return ResultStatus::ErrorNotUsed;
     }
 
-    // We reopen the file, to allow its position to be independent
-    romfs_file = std::make_shared<FileUtil::IOFile>(filepath_romfs, "rb");
-    if (!romfs_file->IsOpen()) {
-        return ResultStatus::Error;
-    }
-
-    offset = 0;
-    size = romfs_file->GetSize();
-
-    LOG_DEBUG(Loader, "RomFS offset:           0x{:016X}", offset);
-    LOG_DEBUG(Loader, "RomFS size:             0x{:016X}", size);
-
-    // Reset read pointer
-    file.Seek(0, SEEK_SET);
+    dir = romfs;
 
     return ResultStatus::Success;
 }
diff --git a/src/core/loader/deconstructed_rom_directory.h b/src/core/loader/deconstructed_rom_directory.h
index 23295d9111..45df993de3 100644
--- a/src/core/loader/deconstructed_rom_directory.h
+++ b/src/core/loader/deconstructed_rom_directory.h
@@ -20,28 +20,25 @@ namespace Loader {
  */
 class AppLoader_DeconstructedRomDirectory final : public AppLoader {
 public:
-    AppLoader_DeconstructedRomDirectory(FileUtil::IOFile&& file, std::string filepath);
+    AppLoader_DeconstructedRomDirectory(v_file main_file);
 
     /**
      * Returns the type of the file
-     * @param file FileUtil::IOFile open file
-     * @param filepath Path of the file that we are opening.
+     * @param file std::shared_ptr<VfsFile> open file
      * @return FileType found, or FileType::Error if this loader doesn't know it
      */
-    static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
+    static FileType IdentifyType(v_file file);
 
     FileType GetFileType() override {
-        return IdentifyType(file, filepath);
+        return IdentifyType(file);
     }
 
     ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
 
-    ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
-                           u64& size) override;
+    ResultStatus ReadRomFS(v_dir& dir) override;
 
 private:
-    std::string filepath_romfs;
-    std::string filepath;
+    v_dir romfs;
     FileSys::ProgramMetadata metadata;
 };
 
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp
index b69e5c6efb..e42c87b53c 100644
--- a/src/core/loader/elf.cpp
+++ b/src/core/loader/elf.cpp
@@ -365,20 +365,17 @@ SectionID ElfReader::GetSectionByName(const char* name, int firstSection) const
 
 namespace Loader {
 
-AppLoader_ELF::AppLoader_ELF(FileUtil::IOFile&& file, std::string filename)
-    : AppLoader(std::move(file)), filename(std::move(filename)) {}
+AppLoader_ELF::AppLoader_ELF(v_file file) : AppLoader(file) {}
 
-FileType AppLoader_ELF::IdentifyType(FileUtil::IOFile& file, const std::string&) {
+FileType AppLoader_ELF::IdentifyType(v_file file) {
     static constexpr u16 ELF_MACHINE_ARM{0x28};
 
     u32 magic = 0;
-    file.Seek(0, SEEK_SET);
-    if (1 != file.ReadArray<u32>(&magic, 1))
+    if (4 != file->ReadObject(&magic))
         return FileType::Error;
 
     u16 machine = 0;
-    file.Seek(18, SEEK_SET);
-    if (1 != file.ReadArray<u16>(&machine, 1))
+    if (2 != file->ReadObject(&machine, 18))
         return FileType::Error;
 
     if (Common::MakeMagic('\x7f', 'E', 'L', 'F') == magic && ELF_MACHINE_ARM == machine)
@@ -391,20 +388,13 @@ ResultStatus AppLoader_ELF::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     if (is_loaded)
         return ResultStatus::ErrorAlreadyLoaded;
 
-    if (!file.IsOpen())
-        return ResultStatus::Error;
-
-    // Reset read pointer in case this file has been read before.
-    file.Seek(0, SEEK_SET);
-
-    size_t size = file.GetSize();
-    std::unique_ptr<u8[]> buffer(new u8[size]);
-    if (file.ReadBytes(&buffer[0], size) != size)
+    std::vector<u8> buffer = file->ReadAllBytes();
+    if (buffer.size() != file->GetSize())
         return ResultStatus::Error;
 
     ElfReader elf_reader(&buffer[0]);
     SharedPtr<CodeSet> codeset = elf_reader.LoadInto(Memory::PROCESS_IMAGE_VADDR);
-    codeset->name = filename;
+    codeset->name = file->GetName();
 
     process->LoadModule(codeset, codeset->entrypoint);
     process->svc_access_mask.set();
diff --git a/src/core/loader/elf.h b/src/core/loader/elf.h
index ee741a7893..2a4ba52f38 100644
--- a/src/core/loader/elf.h
+++ b/src/core/loader/elf.h
@@ -16,24 +16,20 @@ namespace Loader {
 /// Loads an ELF/AXF file
 class AppLoader_ELF final : public AppLoader {
 public:
-    AppLoader_ELF(FileUtil::IOFile&& file, std::string filename);
+    AppLoader_ELF(v_file file);
 
     /**
      * Returns the type of the file
-     * @param file FileUtil::IOFile open file
-     * @param filepath Path of the file that we are opening.
+     * @param file std::shared_ptr<VfsFile> open file
      * @return FileType found, or FileType::Error if this loader doesn't know it
      */
-    static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
+    static FileType IdentifyType(v_file file);
 
     FileType GetFileType() override {
-        return IdentifyType(file, filename);
+        return IdentifyType(file);
     }
 
     ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
-
-private:
-    std::string filename;
 };
 
 } // namespace Loader
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index 8831d8e832..520185c0e8 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -21,11 +21,11 @@ const std::initializer_list<Kernel::AddressMapping> default_address_mappings = {
     {0x1F000000, 0x600000, false}, // entire VRAM
 };
 
-FileType IdentifyFile(FileUtil::IOFile& file, const std::string& filepath) {
+FileType IdentifyFile(v_file file) {
     FileType type;
 
 #define CHECK_TYPE(loader)                                                                         \
-    type = AppLoader_##loader::IdentifyType(file, filepath);                                       \
+    type = AppLoader_##loader::IdentifyType(file);                                                 \
     if (FileType::Error != type)                                                                   \
         return type;
 
@@ -93,58 +93,47 @@ const char* GetFileTypeString(FileType type) {
  * @param filepath the file full path (with name)
  * @return std::unique_ptr<AppLoader> a pointer to a loader object;  nullptr for unsupported type
  */
-static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileType type,
-                                                const std::string& filename,
-                                                const std::string& filepath) {
+static std::unique_ptr<AppLoader> GetFileLoader(v_file file, FileType type) {
     switch (type) {
 
     // Standard ELF file format.
     case FileType::ELF:
-        return std::make_unique<AppLoader_ELF>(std::move(file), filename);
+        return std::make_unique<AppLoader_ELF>(file);
 
     // NX NSO file format.
     case FileType::NSO:
-        return std::make_unique<AppLoader_NSO>(std::move(file), filepath);
+        return std::make_unique<AppLoader_NSO>(file);
 
     // NX NRO file format.
     case FileType::NRO:
-        return std::make_unique<AppLoader_NRO>(std::move(file), filepath);
+        return std::make_unique<AppLoader_NRO>(file);
 
     // NX NCA file format.
     case FileType::NCA:
-        return std::make_unique<AppLoader_NCA>(std::move(file), filepath);
+        return std::make_unique<AppLoader_NCA>(file);
 
     // NX deconstructed ROM directory.
     case FileType::DeconstructedRomDirectory:
-        return std::make_unique<AppLoader_DeconstructedRomDirectory>(std::move(file), filepath);
+        return std::make_unique<AppLoader_DeconstructedRomDirectory>(file);
 
     default:
         return nullptr;
     }
 }
 
-std::unique_ptr<AppLoader> GetLoader(const std::string& filename) {
-    FileUtil::IOFile file(filename, "rb");
-    if (!file.IsOpen()) {
-        LOG_ERROR(Loader, "Failed to load file {}", filename);
-        return nullptr;
-    }
-
-    std::string filename_filename, filename_extension;
-    Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
-
-    FileType type = IdentifyFile(file, filename);
-    FileType filename_type = GuessFromExtension(filename_extension);
+std::unique_ptr<AppLoader> GetLoader(v_file file) {
+    FileType type = IdentifyFile(file);
+    FileType filename_type = GuessFromExtension(file->GetExtension());
 
     if (type != filename_type) {
-        LOG_WARNING(Loader, "File {} has a different type than its extension.", filename);
+        NGLOG_WARNING(Loader, "File {} has a different type than its extension.", file->GetName());
         if (FileType::Unknown == type)
             type = filename_type;
     }
 
-    LOG_DEBUG(Loader, "Loading file {} as {}...", filename, GetFileTypeString(type));
+    NGLOG_DEBUG(Loader, "Loading file {} as {}...", file->GetName(), GetFileTypeString(type));
 
-    return GetFileLoader(std::move(file), type, filename_filename, filename);
+    return GetFileLoader(file, type);
 }
 
 } // namespace Loader
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index b76f7b13d0..68bb1d84aa 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -13,6 +13,7 @@
 #include <boost/optional.hpp>
 #include "common/common_types.h"
 #include "common/file_util.h"
+#include "core/file_sys/vfs.h"
 #include "core/hle/kernel/kernel.h"
 
 namespace Kernel {
@@ -79,7 +80,7 @@ enum class ResultStatus {
 /// Interface for loading an application
 class AppLoader : NonCopyable {
 public:
-    AppLoader(FileUtil::IOFile&& file) : file(std::move(file)) {}
+    AppLoader(v_file file) : file(std::move(file)) {}
     virtual ~AppLoader() {}
 
     /**
@@ -154,26 +155,20 @@ public:
     /**
      * Get the RomFS of the application
      * Since the RomFS can be huge, we return a file reference instead of copying to a buffer
-     * @param romfs_file The file containing the RomFS
-     * @param offset The offset the romfs begins on
-     * @param size The size of the romfs
+     * @param file The file containing the RomFS
      * @return ResultStatus result of function
      */
-    virtual ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
-                                   u64& size) {
+    virtual ResultStatus ReadRomFS(v_dir& dir) {
         return ResultStatus::ErrorNotImplemented;
     }
 
     /**
      * Get the update RomFS of the application
      * Since the RomFS can be huge, we return a file reference instead of copying to a buffer
-     * @param romfs_file The file containing the RomFS
-     * @param offset The offset the romfs begins on
-     * @param size The size of the romfs
+     * @param file The file containing the RomFS
      * @return ResultStatus result of function
      */
-    virtual ResultStatus ReadUpdateRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
-                                         u64& size) {
+    virtual ResultStatus ReadUpdateRomFS(v_dir& file) {
         return ResultStatus::ErrorNotImplemented;
     }
 
@@ -187,7 +182,7 @@ public:
     }
 
 protected:
-    FileUtil::IOFile file;
+    v_file file;
     bool is_loaded = false;
 };
 
diff --git a/src/core/loader/nca.cpp b/src/core/loader/nca.cpp
index da064f8e39..2b309d583f 100644
--- a/src/core/loader/nca.cpp
+++ b/src/core/loader/nca.cpp
@@ -9,6 +9,7 @@
 #include "common/logging/log.h"
 #include "common/swap.h"
 #include "core/core.h"
+#include "core/file_sys/content_archive.h"
 #include "core/file_sys/program_metadata.h"
 #include "core/file_sys/romfs_factory.h"
 #include "core/hle/kernel/process.h"
@@ -20,208 +21,15 @@
 
 namespace Loader {
 
-// Media offsets in headers are stored divided by 512. Mult. by this to get real offset.
-constexpr u64 MEDIA_OFFSET_MULTIPLIER = 0x200;
+AppLoader_NCA::AppLoader_NCA(v_file file) : AppLoader(std::move(file)) {}
 
-constexpr u64 SECTION_HEADER_SIZE = 0x200;
-constexpr u64 SECTION_HEADER_OFFSET = 0x400;
-
-enum class NcaContentType : u8 { Program = 0, Meta = 1, Control = 2, Manual = 3, Data = 4 };
-
-enum class NcaSectionFilesystemType : u8 { PFS0 = 0x2, ROMFS = 0x3 };
-
-struct NcaSectionTableEntry {
-    u32_le media_offset;
-    u32_le media_end_offset;
-    INSERT_PADDING_BYTES(0x8);
-};
-static_assert(sizeof(NcaSectionTableEntry) == 0x10, "NcaSectionTableEntry has incorrect size.");
-
-struct NcaHeader {
-    std::array<u8, 0x100> rsa_signature_1;
-    std::array<u8, 0x100> rsa_signature_2;
-    u32_le magic;
-    u8 is_system;
-    NcaContentType content_type;
-    u8 crypto_type;
-    u8 key_index;
-    u64_le size;
-    u64_le title_id;
-    INSERT_PADDING_BYTES(0x4);
-    u32_le sdk_version;
-    u8 crypto_type_2;
-    INSERT_PADDING_BYTES(15);
-    std::array<u8, 0x10> rights_id;
-    std::array<NcaSectionTableEntry, 0x4> section_tables;
-    std::array<std::array<u8, 0x20>, 0x4> hash_tables;
-    std::array<std::array<u8, 0x10>, 0x4> key_area;
-    INSERT_PADDING_BYTES(0xC0);
-};
-static_assert(sizeof(NcaHeader) == 0x400, "NcaHeader has incorrect size.");
-
-struct NcaSectionHeaderBlock {
-    INSERT_PADDING_BYTES(3);
-    NcaSectionFilesystemType filesystem_type;
-    u8 crypto_type;
-    INSERT_PADDING_BYTES(3);
-};
-static_assert(sizeof(NcaSectionHeaderBlock) == 0x8, "NcaSectionHeaderBlock has incorrect size.");
-
-struct Pfs0Superblock {
-    NcaSectionHeaderBlock header_block;
-    std::array<u8, 0x20> hash;
-    u32_le size;
-    INSERT_PADDING_BYTES(4);
-    u64_le hash_table_offset;
-    u64_le hash_table_size;
-    u64_le pfs0_header_offset;
-    u64_le pfs0_size;
-    INSERT_PADDING_BYTES(432);
-};
-static_assert(sizeof(Pfs0Superblock) == 0x200, "Pfs0Superblock has incorrect size.");
-
-static bool IsValidNca(const NcaHeader& header) {
-    return header.magic == Common::MakeMagic('N', 'C', 'A', '2') ||
-           header.magic == Common::MakeMagic('N', 'C', 'A', '3');
-}
-
-// TODO(DarkLordZach): Add support for encrypted.
-class Nca final {
-    std::vector<FileSys::PartitionFilesystem> pfs;
-    std::vector<u64> pfs_offset;
-
-    u64 romfs_offset = 0;
-    u64 romfs_size = 0;
-
-    boost::optional<u8> exefs_id = boost::none;
-
-    FileUtil::IOFile file;
-    std::string path;
-
-    u64 GetExeFsFileOffset(const std::string& file_name) const;
-    u64 GetExeFsFileSize(const std::string& file_name) const;
-
-public:
-    ResultStatus Load(FileUtil::IOFile&& file, std::string path);
-
-    FileSys::PartitionFilesystem GetPfs(u8 id) const;
-
-    u64 GetRomFsOffset() const;
-    u64 GetRomFsSize() const;
-
-    std::vector<u8> GetExeFsFile(const std::string& file_name);
-};
-
-static bool IsPfsExeFs(const FileSys::PartitionFilesystem& pfs) {
-    // According to switchbrew, an exefs must only contain these two files:
-    return pfs.GetFileSize("main") > 0 && pfs.GetFileSize("main.npdm") > 0;
-}
-
-ResultStatus Nca::Load(FileUtil::IOFile&& in_file, std::string in_path) {
-    file = std::move(in_file);
-    path = in_path;
-    file.Seek(0, SEEK_SET);
-    std::array<u8, sizeof(NcaHeader)> header_array{};
-    if (sizeof(NcaHeader) != file.ReadBytes(header_array.data(), sizeof(NcaHeader)))
-        LOG_CRITICAL(Loader, "File reader errored out during header read.");
-
-    NcaHeader header{};
-    std::memcpy(&header, header_array.data(), sizeof(NcaHeader));
-    if (!IsValidNca(header))
-        return ResultStatus::ErrorInvalidFormat;
-
-    int number_sections =
-        std::count_if(std::begin(header.section_tables), std::end(header.section_tables),
-                      [](NcaSectionTableEntry entry) { return entry.media_offset > 0; });
-
-    for (int i = 0; i < number_sections; ++i) {
-        // Seek to beginning of this section.
-        file.Seek(SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE, SEEK_SET);
-        std::array<u8, sizeof(NcaSectionHeaderBlock)> array{};
-        if (sizeof(NcaSectionHeaderBlock) !=
-            file.ReadBytes(array.data(), sizeof(NcaSectionHeaderBlock)))
-            LOG_CRITICAL(Loader, "File reader errored out during header read.");
-
-        NcaSectionHeaderBlock block{};
-        std::memcpy(&block, array.data(), sizeof(NcaSectionHeaderBlock));
-
-        if (block.filesystem_type == NcaSectionFilesystemType::ROMFS) {
-            romfs_offset = header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER;
-            romfs_size =
-                header.section_tables[i].media_end_offset * MEDIA_OFFSET_MULTIPLIER - romfs_offset;
-        } else if (block.filesystem_type == NcaSectionFilesystemType::PFS0) {
-            Pfs0Superblock sb{};
-            // Seek back to beginning of this section.
-            file.Seek(SECTION_HEADER_OFFSET + i * SECTION_HEADER_SIZE, SEEK_SET);
-            if (sizeof(Pfs0Superblock) != file.ReadBytes(&sb, sizeof(Pfs0Superblock)))
-                LOG_CRITICAL(Loader, "File reader errored out during header read.");
-
-            u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
-                          MEDIA_OFFSET_MULTIPLIER) +
-                         sb.pfs0_header_offset;
-            FileSys::PartitionFilesystem npfs{};
-            ResultStatus status = npfs.Load(path, offset);
-
-            if (status == ResultStatus::Success) {
-                pfs.emplace_back(std::move(npfs));
-                pfs_offset.emplace_back(offset);
-            }
-        }
-    }
-
-    for (size_t i = 0; i < pfs.size(); ++i) {
-        if (IsPfsExeFs(pfs[i]))
-            exefs_id = i;
-    }
-
-    return ResultStatus::Success;
-}
-
-FileSys::PartitionFilesystem Nca::GetPfs(u8 id) const {
-    return pfs[id];
-}
-
-u64 Nca::GetExeFsFileOffset(const std::string& file_name) const {
-    if (exefs_id == boost::none)
-        return 0;
-    return pfs[*exefs_id].GetFileOffset(file_name) + pfs_offset[*exefs_id];
-}
-
-u64 Nca::GetExeFsFileSize(const std::string& file_name) const {
-    if (exefs_id == boost::none)
-        return 0;
-    return pfs[*exefs_id].GetFileSize(file_name);
-}
-
-u64 Nca::GetRomFsOffset() const {
-    return romfs_offset;
-}
-
-u64 Nca::GetRomFsSize() const {
-    return romfs_size;
-}
-
-std::vector<u8> Nca::GetExeFsFile(const std::string& file_name) {
-    std::vector<u8> out(GetExeFsFileSize(file_name));
-    file.Seek(GetExeFsFileOffset(file_name), SEEK_SET);
-    file.ReadBytes(out.data(), GetExeFsFileSize(file_name));
-    return out;
-}
-
-AppLoader_NCA::AppLoader_NCA(FileUtil::IOFile&& file, std::string filepath)
-    : AppLoader(std::move(file)), filepath(std::move(filepath)) {}
-
-FileType AppLoader_NCA::IdentifyType(FileUtil::IOFile& file, const std::string&) {
-    file.Seek(0, SEEK_SET);
-    std::array<u8, 0x400> header_enc_array{};
-    if (0x400 != file.ReadBytes(header_enc_array.data(), 0x400))
+FileType AppLoader_NCA::IdentifyType(v_file file) {
+    // TODO(DarkLordZach): Assuming everything is decrypted. Add crypto support.
+    FileSys::NcaHeader header{};
+    if (sizeof(FileSys::NcaHeader) != file->ReadObject(&header))
         return FileType::Error;
 
-    // TODO(DarkLordZach): Assuming everything is decrypted. Add crypto support.
-    NcaHeader header{};
-    std::memcpy(&header, header_enc_array.data(), sizeof(NcaHeader));
-
-    if (IsValidNca(header) && header.content_type == NcaContentType::Program)
+    if (IsValidNca(header) && header.content_type == FileSys::NcaContentType::Program)
         return FileType::NCA;
 
     return FileType::Error;
@@ -231,17 +39,22 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     if (is_loaded) {
         return ResultStatus::ErrorAlreadyLoaded;
     }
-    if (!file.IsOpen()) {
-        return ResultStatus::Error;
-    }
 
-    nca = std::make_unique<Nca>();
-    ResultStatus result = nca->Load(std::move(file), filepath);
+    nca = std::make_unique<FileSys::Nca>();
+    ResultStatus result = nca->Load(file);
     if (result != ResultStatus::Success) {
         return result;
     }
 
-    result = metadata.Load(nca->GetExeFsFile("main.npdm"));
+    if (nca->GetType() != FileSys::NcaContentType::Program)
+        return ResultStatus::ErrorInvalidFormat;
+
+    auto exefs = nca->GetExeFs();
+
+    if (exefs == nullptr)
+        return ResultStatus::ErrorInvalidFormat;
+
+    result = metadata.Load(exefs->GetFile("main.npdm"));
     if (result != ResultStatus::Success) {
         return result;
     }
@@ -256,7 +69,7 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     for (const auto& module : {"rtld", "main", "subsdk0", "subsdk1", "subsdk2", "subsdk3",
                                "subsdk4", "subsdk5", "subsdk6", "subsdk7", "sdk"}) {
         const VAddr load_addr = next_load_addr;
-        next_load_addr = AppLoader_NSO::LoadModule(module, nca->GetExeFsFile(module), load_addr);
+        next_load_addr = AppLoader_NSO::LoadModule(exefs->GetFile(module), load_addr);
         if (next_load_addr) {
             LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
         } else {
@@ -272,7 +85,7 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     process->Run(Memory::PROCESS_IMAGE_VADDR, metadata.GetMainThreadPriority(),
                  metadata.GetMainThreadStackSize());
 
-    if (nca->GetRomFsSize() > 0)
+    if (nca->GetRomFs() != nullptr)
         Service::FileSystem::RegisterFileSystem(std::make_unique<FileSys::RomFS_Factory>(*this),
                                                 Service::FileSystem::Type::RomFS);
 
@@ -280,20 +93,15 @@ ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     return ResultStatus::Success;
 }
 
-ResultStatus AppLoader_NCA::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
-                                      u64& size) {
-    if (nca->GetRomFsSize() == 0) {
-        LOG_DEBUG(Loader, "No RomFS available");
+ResultStatus AppLoader_NCA::ReadRomFS(v_dir& dir) {
+    const auto romfs = nca->GetRomFs();
+
+    if (romfs == nullptr) {
+        NGLOG_DEBUG(Loader, "No RomFS available");
         return ResultStatus::ErrorNotUsed;
     }
 
-    romfs_file = std::make_shared<FileUtil::IOFile>(filepath, "rb");
-
-    offset = nca->GetRomFsOffset();
-    size = nca->GetRomFsSize();
-
-    LOG_DEBUG(Loader, "RomFS offset:           0x{:016X}", offset);
-    LOG_DEBUG(Loader, "RomFS size:             0x{:016X}", size);
+    dir = romfs;
 
     return ResultStatus::Success;
 }
diff --git a/src/core/loader/nca.h b/src/core/loader/nca.h
index 3b6c451d02..64b98513d5 100644
--- a/src/core/loader/nca.h
+++ b/src/core/loader/nca.h
@@ -13,37 +13,32 @@
 
 namespace Loader {
 
-class Nca;
-
 /// Loads an NCA file
 class AppLoader_NCA final : public AppLoader {
 public:
-    AppLoader_NCA(FileUtil::IOFile&& file, std::string filepath);
+    AppLoader_NCA(v_file file);
 
     /**
      * Returns the type of the file
-     * @param file FileUtil::IOFile open file
-     * @param filepath Path of the file that we are opening.
+     * @param file std::shared_ptr<VfsFile> open file
      * @return FileType found, or FileType::Error if this loader doesn't know it
      */
-    static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
+    static FileType IdentifyType(v_file file);
 
     FileType GetFileType() override {
-        return IdentifyType(file, filepath);
+        return IdentifyType(file);
     }
 
     ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
 
-    ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
-                           u64& size) override;
+    ResultStatus ReadRomFS(v_dir& dir) override;
 
     ~AppLoader_NCA();
 
 private:
-    std::string filepath;
     FileSys::ProgramMetadata metadata;
 
-    std::unique_ptr<Nca> nca;
+    std::unique_ptr<FileSys::Nca> nca;
 };
 
 } // namespace Loader
diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp
index 3853cfa1a9..e86fa33587 100644
--- a/src/core/loader/nro.cpp
+++ b/src/core/loader/nro.cpp
@@ -47,14 +47,12 @@ struct ModHeader {
 };
 static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size.");
 
-AppLoader_NRO::AppLoader_NRO(FileUtil::IOFile&& file, std::string filepath)
-    : AppLoader(std::move(file)), filepath(std::move(filepath)) {}
+AppLoader_NRO::AppLoader_NRO(v_file file) : AppLoader(file) {}
 
-FileType AppLoader_NRO::IdentifyType(FileUtil::IOFile& file, const std::string&) {
+FileType AppLoader_NRO::IdentifyType(v_file file) {
     // Read NSO header
     NroHeader nro_header{};
-    file.Seek(0, SEEK_SET);
-    if (sizeof(NroHeader) != file.ReadBytes(&nro_header, sizeof(NroHeader))) {
+    if (sizeof(NroHeader) != file->ReadObject(&nro_header)) {
         return FileType::Error;
     }
     if (nro_header.magic == Common::MakeMagic('N', 'R', 'O', '0')) {
@@ -67,16 +65,10 @@ static constexpr u32 PageAlignSize(u32 size) {
     return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
 }
 
-bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) {
-    FileUtil::IOFile file(path, "rb");
-    if (!file.IsOpen()) {
-        return {};
-    }
-
+bool AppLoader_NRO::LoadNro(v_file file, VAddr load_base) {
     // Read NSO header
     NroHeader nro_header{};
-    file.Seek(0, SEEK_SET);
-    if (sizeof(NroHeader) != file.ReadBytes(&nro_header, sizeof(NroHeader))) {
+    if (sizeof(NroHeader) != file->ReadObject(&nro_header)) {
         return {};
     }
     if (nro_header.magic != Common::MakeMagic('N', 'R', 'O', '0')) {
@@ -85,10 +77,9 @@ bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) {
 
     // Build program image
     Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create("");
-    std::vector<u8> program_image;
-    program_image.resize(PageAlignSize(nro_header.file_size));
-    file.Seek(0, SEEK_SET);
-    file.ReadBytes(program_image.data(), nro_header.file_size);
+    std::vector<u8> program_image = file->ReadBytes(PageAlignSize(nro_header.file_size));
+    if (program_image.size() != PageAlignSize(nro_header.file_size))
+        return {};
 
     for (int i = 0; i < nro_header.segments.size(); ++i) {
         codeset->segments[i].addr = nro_header.segments[i].offset;
@@ -111,7 +102,7 @@ bool AppLoader_NRO::LoadNro(const std::string& path, VAddr load_base) {
     program_image.resize(static_cast<u32>(program_image.size()) + bss_size);
 
     // Load codeset for current process
-    codeset->name = path;
+    codeset->name = file->GetName();
     codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
     Core::CurrentProcess()->LoadModule(codeset, load_base);
 
@@ -122,14 +113,11 @@ ResultStatus AppLoader_NRO::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     if (is_loaded) {
         return ResultStatus::ErrorAlreadyLoaded;
     }
-    if (!file.IsOpen()) {
-        return ResultStatus::Error;
-    }
 
     // Load NRO
     static constexpr VAddr base_addr{Memory::PROCESS_IMAGE_VADDR};
 
-    if (!LoadNro(filepath, base_addr)) {
+    if (!LoadNro(file, base_addr)) {
         return ResultStatus::ErrorInvalidFormat;
     }
 
diff --git a/src/core/loader/nro.h b/src/core/loader/nro.h
index 599adb2537..ac7fa6f0fe 100644
--- a/src/core/loader/nro.h
+++ b/src/core/loader/nro.h
@@ -15,26 +15,23 @@ namespace Loader {
 /// Loads an NRO file
 class AppLoader_NRO final : public AppLoader, Linker {
 public:
-    AppLoader_NRO(FileUtil::IOFile&& file, std::string filepath);
+    AppLoader_NRO(v_file file);
 
     /**
      * Returns the type of the file
-     * @param file FileUtil::IOFile open file
-     * @param filepath Path of the file that we are opening.
+     * @param file std::shared_ptr<VfsFile> open file
      * @return FileType found, or FileType::Error if this loader doesn't know it
      */
-    static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
+    static FileType IdentifyType(v_file file);
 
     FileType GetFileType() override {
-        return IdentifyType(file, filepath);
+        return IdentifyType(file);
     }
 
     ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
 
 private:
-    bool LoadNro(const std::string& path, VAddr load_base);
-
-    std::string filepath;
+    bool LoadNro(v_file file, VAddr load_base);
 };
 
 } // namespace Loader
diff --git a/src/core/loader/nso.cpp b/src/core/loader/nso.cpp
index 7f84e4b1be..ba5f44e956 100644
--- a/src/core/loader/nso.cpp
+++ b/src/core/loader/nso.cpp
@@ -49,15 +49,11 @@ struct ModHeader {
 };
 static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size.");
 
-AppLoader_NSO::AppLoader_NSO(FileUtil::IOFile&& file, std::string filepath)
-    : AppLoader(std::move(file)), filepath(std::move(filepath)) {}
+AppLoader_NSO::AppLoader_NSO(v_file file) : AppLoader(file) {}
 
-FileType AppLoader_NSO::IdentifyType(FileUtil::IOFile& file, const std::string&) {
+FileType AppLoader_NSO::IdentifyType(v_file file) {
     u32 magic = 0;
-    file.Seek(0, SEEK_SET);
-    if (1 != file.ReadArray<u32>(&magic, 1)) {
-        return FileType::Error;
-    }
+    file->ReadObject(&magic);
 
     if (Common::MakeMagic('N', 'S', 'O', '0') == magic) {
         return FileType::NSO;
@@ -98,13 +94,13 @@ static constexpr u32 PageAlignSize(u32 size) {
     return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
 }
 
-VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>& file_data,
-                                VAddr load_base) {
-    if (file_data.size() < sizeof(NsoHeader))
+VAddr AppLoader_NSO::LoadModule(v_file file, VAddr load_base) {
+    if (file->GetSize() < sizeof(NsoHeader))
         return {};
 
-    NsoHeader nso_header;
-    std::memcpy(&nso_header, file_data.data(), sizeof(NsoHeader));
+    NsoHeader nso_header{};
+    if (sizeof(NsoHeader) != file->ReadObject(&file))
+        return {};
 
     if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
         return {};
@@ -113,9 +109,8 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>&
     Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create("");
     std::vector<u8> program_image;
     for (int i = 0; i < nso_header.segments.size(); ++i) {
-        std::vector<u8> compressed_data(nso_header.segments_compressed_size[i]);
-        for (int j = 0; j < nso_header.segments_compressed_size[i]; ++j)
-            compressed_data[j] = file_data[nso_header.segments[i].offset + j];
+        const std::vector<u8> compressed_data =
+            file->ReadBytes(nso_header.segments_compressed_size[i], nso_header.segments[i].offset);
         std::vector<u8> data = DecompressSegment(compressed_data, nso_header.segments[i]);
         program_image.resize(nso_header.segments[i].location);
         program_image.insert(program_image.end(), data.begin(), data.end());
@@ -143,62 +138,7 @@ VAddr AppLoader_NSO::LoadModule(const std::string& name, const std::vector<u8>&
     program_image.resize(image_size);
 
     // Load codeset for current process
-    codeset->name = name;
-    codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
-    Core::CurrentProcess()->LoadModule(codeset, load_base);
-
-    return load_base + image_size;
-}
-
-VAddr AppLoader_NSO::LoadModule(const std::string& path, VAddr load_base) {
-    FileUtil::IOFile file(path, "rb");
-    if (!file.IsOpen()) {
-        return {};
-    }
-
-    // Read NSO header
-    NsoHeader nso_header{};
-    file.Seek(0, SEEK_SET);
-    if (sizeof(NsoHeader) != file.ReadBytes(&nso_header, sizeof(NsoHeader))) {
-        return {};
-    }
-    if (nso_header.magic != Common::MakeMagic('N', 'S', 'O', '0')) {
-        return {};
-    }
-
-    // Build program image
-    Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create("");
-    std::vector<u8> program_image;
-    for (int i = 0; i < nso_header.segments.size(); ++i) {
-        std::vector<u8> data =
-            ReadSegment(file, nso_header.segments[i], nso_header.segments_compressed_size[i]);
-        program_image.resize(nso_header.segments[i].location);
-        program_image.insert(program_image.end(), data.begin(), data.end());
-        codeset->segments[i].addr = nso_header.segments[i].location;
-        codeset->segments[i].offset = nso_header.segments[i].location;
-        codeset->segments[i].size = PageAlignSize(static_cast<u32>(data.size()));
-    }
-
-    // MOD header pointer is at .text offset + 4
-    u32 module_offset;
-    std::memcpy(&module_offset, program_image.data() + 4, sizeof(u32));
-
-    // Read MOD header
-    ModHeader mod_header{};
-    // Default .bss to size in segment header if MOD0 section doesn't exist
-    u32 bss_size{PageAlignSize(nso_header.segments[2].bss_size)};
-    std::memcpy(&mod_header, program_image.data() + module_offset, sizeof(ModHeader));
-    const bool has_mod_header{mod_header.magic == Common::MakeMagic('M', 'O', 'D', '0')};
-    if (has_mod_header) {
-        // Resize program image to include .bss section and page align each section
-        bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
-    }
-    codeset->data.size += bss_size;
-    const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)};
-    program_image.resize(image_size);
-
-    // Load codeset for current process
-    codeset->name = path;
+    codeset->name = file->GetName();
     codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
     Core::CurrentProcess()->LoadModule(codeset, load_base);
 
@@ -209,13 +149,10 @@ ResultStatus AppLoader_NSO::Load(Kernel::SharedPtr<Kernel::Process>& process) {
     if (is_loaded) {
         return ResultStatus::ErrorAlreadyLoaded;
     }
-    if (!file.IsOpen()) {
-        return ResultStatus::Error;
-    }
 
     // Load module
-    LoadModule(filepath, Memory::PROCESS_IMAGE_VADDR);
-    LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", filepath, Memory::PROCESS_IMAGE_VADDR);
+    LoadModule(file, Memory::PROCESS_IMAGE_VADDR);
+    NGLOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", file->GetName(), Memory::PROCESS_IMAGE_VADDR);
 
     process->svc_access_mask.set();
     process->address_mappings = default_address_mappings;
diff --git a/src/core/loader/nso.h b/src/core/loader/nso.h
index 386f4d39a4..9331388dd9 100644
--- a/src/core/loader/nso.h
+++ b/src/core/loader/nso.h
@@ -15,29 +15,22 @@ namespace Loader {
 /// Loads an NSO file
 class AppLoader_NSO final : public AppLoader, Linker {
 public:
-    AppLoader_NSO(FileUtil::IOFile&& file, std::string filepath);
+    AppLoader_NSO(v_file file);
 
     /**
      * Returns the type of the file
-     * @param file FileUtil::IOFile open file
-     * @param filepath Path of the file that we are opening.
+     * @param file std::shared_ptr<VfsFile> open file
      * @return FileType found, or FileType::Error if this loader doesn't know it
      */
-    static FileType IdentifyType(FileUtil::IOFile& file, const std::string& filepath);
+    static FileType IdentifyType(v_file file);
 
     FileType GetFileType() override {
-        return IdentifyType(file, filepath);
+        return IdentifyType(file);
     }
 
-    static VAddr LoadModule(const std::string& name, const std::vector<u8>& file_data,
-                            VAddr load_base);
-
-    static VAddr LoadModule(const std::string& path, VAddr load_base);
+    static VAddr LoadModule(v_file file, VAddr load_base);
 
     ResultStatus Load(Kernel::SharedPtr<Kernel::Process>& process) override;
-
-private:
-    std::string filepath;
 };
 
 } // namespace Loader