diff --git a/src/common/caching.c b/src/common/caching.c
index ffb0b3acf..49374a5b3 100644
--- a/src/common/caching.c
+++ b/src/common/caching.c
@@ -5,6 +5,8 @@
 #define FF_CACHE_VALUE_EXTENSION "ffcv"
 #define FF_CACHE_SPLIT_EXTENSION "ffcs"
 
+#define FF_CACHE_EXTENSION_STRUCT "ffcs2"
+
 static void getCacheFilePath(FFinstance* instance, const char* moduleName, const char* extension, FFstrbuf* buffer)
 {
     ffStrbufAppend(buffer, &instance->state.cacheDir);
@@ -22,7 +24,7 @@ static void readCacheFile(FFinstance* instance, const char* moduleName, const ch
     FFstrbuf path;
     ffStrbufInitA(&path, 64);
     getCacheFilePath(instance, moduleName, extension, &path);
-    ffAppendFileContent(path.chars, buffer);
+    ffAppendFileBuffer(path.chars, buffer);
     ffStrbufDestroy(&path);
 }
 
diff --git a/src/common/io.c b/src/common/io.c
index 016346d59..62e220e92 100644
--- a/src/common/io.c
+++ b/src/common/io.c
@@ -22,14 +22,10 @@ static void createSubfolders(const char* fileName)
     ffStrbufDestroy(&path);
 }
 
-bool ffWriteFDData(int fd, size_t dataSize, const void* data)
-{
-    return write(fd, data, dataSize) != -1;
-}
 
 bool ffWriteFDBuffer(int fd, const FFstrbuf* content)
 {
-    return ffWriteFDData(fd, content->length, content->chars);
+    return write(fd, content->chars, content->length) != -1;
 }
 
 bool ffWriteFileData(const char* fileName, size_t dataSize, const void* data)
@@ -46,7 +42,7 @@ bool ffWriteFileData(const char* fileName, size_t dataSize, const void* data)
             return false;
     }
 
-    bool ret = ffWriteFDData(fd, dataSize, data);
+    bool ret = write(fd, data, dataSize) != -1;
 
     close(fd);
 
@@ -58,7 +54,7 @@ bool ffWriteFileBuffer(const char* fileName, const FFstrbuf* buffer)
     return ffWriteFileData(fileName, buffer->length, buffer->chars);
 }
 
-void ffAppendFDContent(int fd, FFstrbuf* buffer)
+bool ffAppendFDBuffer(int fd, FFstrbuf* buffer)
 {
     ssize_t readed = 0;
 
@@ -82,24 +78,40 @@ void ffAppendFDContent(int fd, FFstrbuf* buffer)
 
     ffStrbufTrimRight(buffer, '\n');
     ffStrbufTrimRight(buffer, ' ');
+
+    return readed >= 0;
 }
 
-bool ffAppendFileContent(const char* fileName, FFstrbuf* buffer)
+ssize_t ffGetFileData(const char* fileName, size_t dataSize, void* data)
+{
+    int fd = open(fileName, O_RDONLY);
+    if(fd == -1)
+        return -1;
+
+    ssize_t readed = read(fd, data, dataSize);
+
+    close(fd);
+
+    return readed;
+}
+
+bool ffAppendFileBuffer(const char* fileName, FFstrbuf* buffer)
 {
     int fd = open(fileName, O_RDONLY);
     if(fd == -1)
         return false;
 
-    ffAppendFDContent(fd, buffer);
+    bool ret = ffAppendFDBuffer(fd, buffer);
 
     close(fd);
-    return true;
+
+    return ret;
 }
 
-bool ffGetFileContent(const char* fileName, FFstrbuf* buffer)
+bool ffGetFileBuffer(const char* fileName, FFstrbuf* buffer)
 {
     ffStrbufClear(buffer);
-    return ffAppendFileContent(fileName, buffer);
+    return ffAppendFileBuffer(fileName, buffer);
 }
 
 // Not thread safe!
diff --git a/src/common/processing.c b/src/common/processing.c
index 4a00fd533..95c3dcb6d 100644
--- a/src/common/processing.c
+++ b/src/common/processing.c
@@ -29,6 +29,6 @@ void ffProcessAppendStdOut(FFstrbuf* buffer, char* const argv[])
     //Parent
     close(pipes[1]);
     waitpid(childPid, NULL, 0);
-    ffAppendFDContent(pipes[0], buffer);
+    ffAppendFDBuffer(pipes[0], buffer);
     close(pipes[0]);
 }
diff --git a/src/detection/displayserver/wmde.c b/src/detection/displayserver/wmde.c
index 6c4069a14..83b5dbd5e 100644
--- a/src/detection/displayserver/wmde.c
+++ b/src/detection/displayserver/wmde.c
@@ -337,7 +337,7 @@ static void getFromProcDir(const FFinstance* instance, FFDisplayServerResult* re
 
         //Don't check for processes not owend by the current user.
         ffStrbufAppendS(&procPath, "/loginuid");
-        ffGetFileContent(procPath.chars, &loginuid);
+        ffGetFileBuffer(procPath.chars, &loginuid);
         if(ffStrbufComp(&userID, &loginuid) != 0)
         {
             ffStrbufSubstrBefore(&procPath, procPathLength);
@@ -348,7 +348,7 @@ static void getFromProcDir(const FFinstance* instance, FFDisplayServerResult* re
 
         //We check the cmdline for the process name, because it is not trimmed.
         ffStrbufAppendS(&procPath, "/cmdline");
-        ffGetFileContent(procPath.chars, &processName);
+        ffGetFileBuffer(procPath.chars, &processName);
         ffStrbufSubstrBeforeFirstC(&processName, '\0'); //Trim the arguments
         ffStrbufSubstrAfterLastC(&processName, '/');
 
diff --git a/src/detection/temps.c b/src/detection/temps.c
index 4a6928768..c97f7c97a 100644
--- a/src/detection/temps.c
+++ b/src/detection/temps.c
@@ -32,7 +32,7 @@ static bool parseHwmonDir(FFstrbuf* dir, FFTempValue* value)
             continue;
 
         ffStrbufAppendS(dir, dirent->d_name);
-        ffGetFileContent(dir->chars, &valueString);
+        ffGetFileBuffer(dir->chars, &valueString);
         ffStrbufSubstrBefore(dir, dirLength);
 
         //ffStrbufToDouble() returns NaN if the string couldn't be parsed
@@ -51,11 +51,11 @@ static bool parseHwmonDir(FFstrbuf* dir, FFTempValue* value)
         return false;
 
     ffStrbufAppendS(dir, "name");
-    ffGetFileContent(dir->chars, &value->name);
+    ffGetFileBuffer(dir->chars, &value->name);
     ffStrbufSubstrBefore(dir, dirLength);
 
     ffStrbufAppendS(dir, "device/class");
-    ffGetFileContent(dir->chars, &value->deviceClass);
+    ffGetFileBuffer(dir->chars, &value->deviceClass);
     ffStrbufSubstrBefore(dir, dirLength);
 
     return value->name.length > 0 || value->deviceClass.length > 0;
diff --git a/src/detection/terminalShell.c b/src/detection/terminalShell.c
index eaa7ae5da..4ac7b6dfa 100644
--- a/src/detection/terminalShell.c
+++ b/src/detection/terminalShell.c
@@ -21,7 +21,7 @@ static void getProcessInformation(const char* pid, FFstrbuf* processName, FFstrb
     ffStrbufAppendS(&cmdlineFilePath, pid);
     ffStrbufAppendS(&cmdlineFilePath, "/cmdline");
 
-    ffGetFileContent(cmdlineFilePath.chars, exe);
+    ffGetFileBuffer(cmdlineFilePath.chars, exe);
     ffStrbufSubstrBeforeFirstC(exe, '\0'); //Trim the arguments
     ffStrbufTrimLeft(exe, '-'); //Happens in TTY
 
diff --git a/src/fastfetch.h b/src/fastfetch.h
index 31acd1e2c..b3848577f 100644
--- a/src/fastfetch.h
+++ b/src/fastfetch.h
@@ -413,14 +413,14 @@ void ffListFeatures();
 void ffStartDetectionThreads(FFinstance* instance);
 
 //common/io.c
-bool ffWriteFDData(int fd, size_t dataSize, const void* data);
 bool ffWriteFDBuffer(int fd, const FFstrbuf* content);
 bool ffWriteFileData(const char* fileName, size_t dataSize, const void* data);
 bool ffWriteFileBuffer(const char* fileName, const FFstrbuf* buffer);
 
-void ffAppendFDContent(int fd, FFstrbuf* buffer);
-bool ffAppendFileContent(const char* fileName, FFstrbuf* buffer); //returns true if open() succeeds. This is used to differentiate between <file not found> and <empty file>
-bool ffGetFileContent(const char* fileName, FFstrbuf* buffer);
+bool ffAppendFDBuffer(int fd, FFstrbuf* buffer);
+ssize_t ffGetFileData(const char* fileName, size_t dataSize, void* data);
+bool ffAppendFileBuffer(const char* fileName, FFstrbuf* buffer);
+bool ffGetFileBuffer(const char* fileName, FFstrbuf* buffer);
 
 bool ffFileExists(const char* fileName, mode_t mode);
 void ffSuppressIO(bool suppress); // Not thread safe!
diff --git a/src/logo/image/image.c b/src/logo/image/image.c
index bf0aacbc3..d731b01a7 100644
--- a/src/logo/image/image.c
+++ b/src/logo/image/image.c
@@ -375,7 +375,7 @@ static void readCachedStrbuf(FFLogoRequestData* requestData, FFstrbuf* result, c
 {
     uint32_t cacheDirLength = requestData->cacheDir.length;
     ffStrbufAppendS(&requestData->cacheDir, cacheFileName);
-    ffAppendFileContent(requestData->cacheDir.chars, result);
+    ffAppendFileBuffer(requestData->cacheDir.chars, result);
     ffStrbufSubstrBefore(&requestData->cacheDir, cacheDirLength);
 }
 
diff --git a/src/logo/logo.c b/src/logo/logo.c
index 0bb5aae41..05faa7af8 100644
--- a/src/logo/logo.c
+++ b/src/logo/logo.c
@@ -249,7 +249,7 @@ static bool logoPrintFileIfExists(FFinstance* instance, bool doColorReplacement)
     FFstrbuf content;
     ffStrbufInitA(&content, 2047);
 
-    if(!ffAppendFileContent(instance->config.logoSource.chars, &content))
+    if(!ffAppendFileBuffer(instance->config.logoSource.chars, &content))
     {
         ffStrbufDestroy(&content);
         return false;
diff --git a/src/modules/battery.c b/src/modules/battery.c
index 1ef5e131a..4af4a310c 100644
--- a/src/modules/battery.c
+++ b/src/modules/battery.c
@@ -23,7 +23,7 @@ static void parseBattery(FFstrbuf* dir, FFlist* results)
 
     //type must exist and be "Battery"
     ffStrbufAppendS(dir, "/type");
-    ffGetFileContent(dir->chars, &testBatteryBuffer);
+    ffGetFileBuffer(dir->chars, &testBatteryBuffer);
     ffStrbufSubstrBefore(dir, dirLength);
 
     if(ffStrbufIgnCaseCompS(&testBatteryBuffer, "Battery") != 0)
@@ -34,7 +34,7 @@ static void parseBattery(FFstrbuf* dir, FFlist* results)
 
     //scope may not exist or must not be "Device"
     ffStrbufAppendS(dir, "/scope");
-    ffGetFileContent(dir->chars, &testBatteryBuffer);
+    ffGetFileBuffer(dir->chars, &testBatteryBuffer);
     ffStrbufSubstrBefore(dir, dirLength);
 
     if(ffStrbufIgnCaseCompS(&testBatteryBuffer, "Device") == 0)
@@ -49,7 +49,7 @@ static void parseBattery(FFstrbuf* dir, FFlist* results)
     //capacity must exist and be not empty
     ffStrbufInit(&result->capacity);
     ffStrbufAppendS(dir, "/capacity");
-    ffGetFileContent(dir->chars, &result->capacity);
+    ffGetFileBuffer(dir->chars, &result->capacity);
     ffStrbufSubstrBefore(dir, dirLength);
 
     if(result->capacity.length == 0)
@@ -63,22 +63,22 @@ static void parseBattery(FFstrbuf* dir, FFlist* results)
 
     ffStrbufInit(&result->manufacturer);
     ffStrbufAppendS(dir, "/manufacturer");
-    ffGetFileContent(dir->chars, &result->manufacturer);
+    ffGetFileBuffer(dir->chars, &result->manufacturer);
     ffStrbufSubstrBefore(dir, dirLength);
 
     ffStrbufInit(&result->modelName);
     ffStrbufAppendS(dir, "/model_name");
-    ffGetFileContent(dir->chars, &result->modelName);
+    ffGetFileBuffer(dir->chars, &result->modelName);
     ffStrbufSubstrBefore(dir, dirLength);
 
     ffStrbufInit(&result->technology);
     ffStrbufAppendS(dir, "/technology");
-    ffGetFileContent(dir->chars, &result->technology);
+    ffGetFileBuffer(dir->chars, &result->technology);
     ffStrbufSubstrBefore(dir, dirLength);
 
     ffStrbufInit(&result->status);
     ffStrbufAppendS(dir, "/status");
-    ffGetFileContent(dir->chars, &result->status);
+    ffGetFileBuffer(dir->chars, &result->status);
     ffStrbufSubstrBefore(dir, dirLength);
 }
 
diff --git a/src/modules/cpu.c b/src/modules/cpu.c
index 20625d99a..36eb5f561 100644
--- a/src/modules/cpu.c
+++ b/src/modules/cpu.c
@@ -10,9 +10,9 @@ static double getGhz(const char* policyFile, const char* cpuFile)
     FFstrbuf content;
     ffStrbufInit(&content);
 
-    ffGetFileContent(policyFile, &content);
+    ffGetFileBuffer(policyFile, &content);
     if(content.length == 0)
-        ffGetFileContent(cpuFile, &content);
+        ffGetFileBuffer(cpuFile, &content);
 
     double herz = ffStrbufToDouble(&content);
 
diff --git a/src/modules/host.c b/src/modules/host.c
index 8f3979524..5992faa05 100644
--- a/src/modules/host.c
+++ b/src/modules/host.c
@@ -39,10 +39,10 @@ static bool hostValueSet(FFstrbuf* value)
 
 static void getHostValue(const char* devicesPath, const char* classPath, FFstrbuf* buffer)
 {
-    ffGetFileContent(devicesPath, buffer);
+    ffGetFileBuffer(devicesPath, buffer);
 
     if(buffer->length == 0)
-        ffGetFileContent(classPath, buffer);
+        ffGetFileBuffer(classPath, buffer);
 }
 #endif
 
@@ -67,10 +67,10 @@ void ffPrintHost(FFinstance* instance)
         getHostValue("/sys/devices/virtual/dmi/id/product_name", "/sys/class/dmi/id/product_name", &product_name);
 
         if(product_name.length == 0)
-            ffGetFileContent("/sys/firmware/devicetree/base/model", &product_name);
+            ffGetFileBuffer("/sys/firmware/devicetree/base/model", &product_name);
 
         if(product_name.length == 0)
-            ffGetFileContent("/tmp/sysinfo/model", &product_name);
+            ffGetFileBuffer("/tmp/sysinfo/model", &product_name);
 
         if(ffStrbufStartsWithS(&product_name, "Standard PC"))
         {