diff --git a/nx/include/switch.h b/nx/include/switch.h
index 465d4262..b51d25d5 100644
--- a/nx/include/switch.h
+++ b/nx/include/switch.h
@@ -94,6 +94,7 @@ extern "C" {
 #include "switch/services/caps.h"
 #include "switch/services/capsa.h"
 #include "switch/services/capsc.h"
+#include "switch/services/capsdc.h"
 #include "switch/services/capsu.h"
 #include "switch/services/capssc.h"
 #include "switch/services/capssu.h"
diff --git a/nx/include/switch/services/caps.h b/nx/include/switch/services/caps.h
index 29dc936a..a52ca0f5 100644
--- a/nx/include/switch/services/caps.h
+++ b/nx/include/switch/services/caps.h
@@ -65,7 +65,10 @@ typedef struct {
 
 /// ScreenShotDecodeOption
 typedef struct {
-    u8 unk_x0[0x20];                            ///< Unknown. Set to all-zero by official sw.
+    u8 fancy_upsampling;    ///< See libjpeg-turbo do_fancy_upsampling.
+    u8 block_smoothing;     ///< See libjpeg-turbo do_block_smoothing.
+    u8 pad_x2[0x6];         ///< Padding.
+    u64 unk_x8[0x3];        ///< Unknown. Ignored by official sw.
 } CapsScreenShotDecodeOption;
 
 /// AlbumFileDateTime. This corresponds to each field in the Album entry filename, prior to the "-": "YYYYMMDDHHMMSSII".
diff --git a/nx/include/switch/services/capsdc.h b/nx/include/switch/services/capsdc.h
new file mode 100644
index 00000000..3498e9cb
--- /dev/null
+++ b/nx/include/switch/services/capsdc.h
@@ -0,0 +1,32 @@
+/**
+ * @file capsdc.h
+ * @brief Jpeg Decoder (caps:dc) service IPC wrapper. Only available on [4.0.0+].
+ * @note Only holds one session that is occupied by capsrv.
+ * @author Behemoth
+ * @copyright libnx Authors
+ */
+#pragma once
+#include "../types.h"
+#include "../sf/service.h"
+#include "../services/caps.h"
+
+/// Initialize caps:dc
+Result capsdcInitialize(void);
+
+/// Exit caps:dc.
+void capsdcExit(void);
+
+/// Gets the Service for caps:dc.
+Service* capsdcGetServiceSession(void);
+
+/**
+ * @brief Decodes a jpeg buffer into RGBX.
+ * @param[in] width Image width.
+ * @param[in] height Image height.
+ * @param[in] opts \ref CapsScreenShotDecodeOption.
+ * @param[in] jpeg Jpeg image input buffer.
+ * @param[in] jpeg_size Input image buffer size.
+ * @param[out] out_image RGBA8 image output buffer.
+ * @param[in] out_image_size Output image buffer size, should be at least large enough for RGBA8 width x height.
+ */
+Result capsdcDecodeJpeg(u32 width, u32 height, const CapsScreenShotDecodeOption *opts, const void* jpeg, size_t jpeg_size, void* out_image, size_t out_image_size);
diff --git a/nx/include/switch/services/fs.h b/nx/include/switch/services/fs.h
index 527646e6..0da76c50 100644
--- a/nx/include/switch/services/fs.h
+++ b/nx/include/switch/services/fs.h
@@ -170,6 +170,12 @@ typedef enum {
     FsCustomStorageId_SdCard   = 1,
 } FsCustomStorageId;
 
+/// ImageDirectoryId
+typedef enum {
+    FsImageDirectoryId_Nand = 0,
+    FsImageDirectoryId_Sd   = 1,
+} FsImageDirectoryId;
+
 /// SaveDataSpaceId
 typedef enum {
     FsSaveDataSpaceId_System           = 0,    ///< System
@@ -329,6 +335,7 @@ Result fsWriteSaveDataFileSystemExtraData(const void* buf, size_t len, FsSaveDat
 
 Result fsOpenSaveDataInfoReader(FsSaveDataInfoReader* out, FsSaveDataSpaceId save_data_space_id);
 
+Result fsOpenImageDirectoryFileSystem(FsFileSystem* out, FsImageDirectoryId image_directory_id);
 Result fsOpenContentStorageFileSystem(FsFileSystem* out, FsContentStorageId content_storage_id);
 Result fsOpenCustomStorageFileSystem(FsFileSystem* out, FsCustomStorageId custom_storage_id); /// [7.0.0+]
 
diff --git a/nx/include/switch/services/hid.h b/nx/include/switch/services/hid.h
index e347379e..f926d6cd 100644
--- a/nx/include/switch/services/hid.h
+++ b/nx/include/switch/services/hid.h
@@ -422,7 +422,7 @@ typedef struct SixAxisSensorValues {
     HidVector orientation[3];
 } SixAxisSensorValues;
 
-#define JOYSTICK_MAX (0x8000)
+#define JOYSTICK_MAX (0x7FFF)
 #define JOYSTICK_MIN (-0x8000)
 
 // End enums and output structs
diff --git a/nx/include/switch/services/set.h b/nx/include/switch/services/set.h
index 7fe5015d..fda2445b 100644
--- a/nx/include/switch/services/set.h
+++ b/nx/include/switch/services/set.h
@@ -959,7 +959,7 @@ Result setsysSetChineseTraditionalInputMethod(SetChineseTraditionalInputMethod m
 
 /**
  * @brief Gets the \ref SetSysHomeMenuScheme.
- * @note Only available on [9.0.0+].
+ * @note Only available on [8.1.1+].
  * @param[out] out \ref SetSysHomeMenuScheme
  */
 Result setsysGetHomeMenuScheme(SetSysHomeMenuScheme *out);
diff --git a/nx/source/services/capsdc.c b/nx/source/services/capsdc.c
new file mode 100644
index 00000000..7297e58a
--- /dev/null
+++ b/nx/source/services/capsdc.c
@@ -0,0 +1,41 @@
+#define NX_SERVICE_ASSUME_NON_DOMAIN
+#include "service_guard.h"
+#include "runtime/hosversion.h"
+#include "services/capsdc.h"
+
+static Service g_capsdcSrv;
+
+NX_GENERATE_SERVICE_GUARD(capsdc);
+
+Result _capsdcInitialize(void) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return smGetService(&g_capsdcSrv, "caps:dc");
+}
+
+void _capsdcCleanup(void) {
+    serviceClose(&g_capsdcSrv);
+}
+
+Service* capsdcGetServiceSession(void) {
+    return &g_capsdcSrv;
+}
+
+Result capsdcDecodeJpeg(u32 width, u32 height, const CapsScreenShotDecodeOption *opts, const void* jpeg, size_t jpeg_size, void* out_image, size_t out_image_size) {
+    const struct {
+        u32 width;
+        u32 height;
+        CapsScreenShotDecodeOption opts;
+    } in = { width, height, *opts };
+    return serviceDispatchIn(&g_capsdcSrv, 3001, in,
+        .buffer_attrs = {
+            SfBufferAttr_In | SfBufferAttr_HipcMapAlias,
+            SfBufferAttr_Out | SfBufferAttr_HipcMapAlias | SfBufferAttr_HipcMapTransferAllowsNonSecure,
+        },
+        .buffers = {
+            { jpeg, jpeg_size },
+            { out_image, out_image_size },
+        }
+    );
+}
diff --git a/nx/source/services/fs.c b/nx/source/services/fs.c
index 8ab67afa..ba5bda71 100644
--- a/nx/source/services/fs.c
+++ b/nx/source/services/fs.c
@@ -351,6 +351,14 @@ Result fsOpenSaveDataInfoReader(FsSaveDataInfoReader* out, FsSaveDataSpaceId sav
     }
 }
 
+Result fsOpenImageDirectoryFileSystem(FsFileSystem* out, FsImageDirectoryId image_directory_id) {
+    u32 tmp=image_directory_id;
+    return _fsObjectDispatchIn(&g_fsSrv, 100, tmp,
+        .out_num_objects = 1,
+        .out_objects = &out->s,
+    );
+}
+
 Result fsOpenContentStorageFileSystem(FsFileSystem* out, FsContentStorageId content_storage_id) {
     u32 tmp=content_storage_id;
     return _fsObjectDispatchIn(&g_fsSrv, 110, tmp,
diff --git a/nx/source/services/set.c b/nx/source/services/set.c
index 3655e81f..131a5e07 100644
--- a/nx/source/services/set.c
+++ b/nx/source/services/set.c
@@ -727,7 +727,7 @@ Result setsysSetChineseTraditionalInputMethod(SetChineseTraditionalInputMethod m
 }
 
 Result setsysGetHomeMenuScheme(SetSysHomeMenuScheme *out) {
-    if (hosversionBefore(9,0,0))
+    if (hosversionBefore(8,1,1))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
 
     return serviceDispatchOut(&g_setsysSrv, 174, *out);