diff --git a/.forgejo/workflows/push.yaml b/.forgejo/workflows/push.yaml
index 5121d24..6ccb926 100644
--- a/.forgejo/workflows/push.yaml
+++ b/.forgejo/workflows/push.yaml
@@ -95,7 +95,6 @@ jobs:
       - name: Create merged firmware binary
         run: |
           if [ "${{ matrix.chip.name }}" == "btclock_v8" ]; then
-            mkdir -p ${{ matrix.chip.name }}_${{ matrix.epd_variant }} && \
             esptool.py --chip ${{ matrix.chip.version }} merge_bin \
             -o ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/${{ matrix.chip.name }}_${{ matrix.epd_variant }}.bin \
             --flash_mode dio \
@@ -105,7 +104,19 @@ jobs:
             0x8000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/partitions.bin \
             0xe000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/ota_data_initial.bin \
             0x10000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/firmware.bin \
-            0x810000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs.bin;
+            0xDF0000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs_16MB.bin
+          elif [ "${{ matrix.chip.name }}" == "btclock_rev_b" ]; then
+            mkdir -p ${{ matrix.chip.name }}_${{ matrix.epd_variant }} && \
+            esptool.py --chip ${{ matrix.chip.version }} merge_bin \
+            -o ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/${{ matrix.chip.name }}_${{ matrix.epd_variant }}.bin \
+            --flash_mode dio \
+            --flash_freq 80m \
+            --flash_size 8MB \
+            0x0000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/bootloader.bin \
+            0x8000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/partitions.bin \
+            0xe000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/ota_data_initial.bin \
+            0x10000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/firmware.bin \
+            0x6F0000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs_8MB.bin;
           else
             # Original command for other cases
             mkdir -p ${{ matrix.chip.name }}_${{ matrix.epd_variant }} && \
@@ -116,7 +127,7 @@ jobs:
             0x8000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/partitions.bin \
             0xe000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/ota_data_initial.bin \
             0x10000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/firmware.bin \
-            0x370000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs.bin
+            0x380000 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs_4MB.bin
             # Adjust the offset for littlefs or other files as needed for the original case
           fi
 
@@ -127,10 +138,11 @@ jobs:
         run: shasum -a 256 ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/${{ matrix.chip.name }}_${{ matrix.epd_variant }}.bin | awk '{print $1}' > ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/${{ matrix.chip.name }}_${{ matrix.epd_variant }}.bin.sha256
 
       - name: Create checksum for littlefs partition
-        run: shasum -a 256 .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs.bin | awk '{print $1}' > ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/littlefs.bin.sha256
-
-      - name: Copy all artifacts to output folder
-        run: cp .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/*.bin .pio/boot_app0.bin ${{ matrix.chip.name }}_${{ matrix.epd_variant }}
+        run: |
+          fs_file=$(find .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }} -name "littlefs*.bin")
+          shasum -a 256 "$fs_file" | awk '{print $1}' > "${fs_file}.sha256"
+            - name: Copy all artifacts to output folder
+              run: cp .pio/build/${{ matrix.chip.name }}_${{ matrix.epd_variant }}/*.bin .pio/boot_app0.bin ${{ matrix.chip.name }}_${{ matrix.epd_variant }}
 
       - name: Create OTA binary file
         run: mv ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/firmware.bin ${{ matrix.chip.name }}_${{ matrix.epd_variant }}/${{ matrix.chip.name }}_${{ matrix.epd_variant }}_firmware.bin
diff --git a/partition.csv b/partition.csv
index 80714ea..eedbf5b 100644
--- a/partition.csv
+++ b/partition.csv
@@ -3,5 +3,5 @@ nvs,      data, nvs,     0x9000,  0x5000,
 otadata,  data, ota,     0xe000,  0x2000,
 app0,     app,  ota_0,   0x10000, 0x1b8000,
 app1,     app,  ota_1,   ,        0x1b8000,
-spiffs,   data, spiffs,  ,        0x66800,
-coredump, data, coredump,,        0x10000,
\ No newline at end of file
+spiffs,   data, spiffs,  ,        0x66C00,
+coredump, data, coredump,,        0x10000,
diff --git a/partition_16mb.csv b/partition_16mb.csv
index e26e145..7e58611 100644
--- a/partition_16mb.csv
+++ b/partition_16mb.csv
@@ -1,7 +1,7 @@
 # Name,   Type, SubType, Offset,  Size, Flags
-nvs,      data, nvs,     36K,     20K,
-otadata,  data, ota,     56K,     8K,
-app0,     app,  ota_0,   64K,     4096K,
-app1,     app,  ota_1,   ,        4096K,
-spiffs,   data, spiffs,  ,        410K,
-coredump, data, coredump,,        64K,
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x6F0000,
+app1,     app,  ota_1,   ,        0x6F0000,
+spiffs,   data, spiffs,  ,        0x200000,
+coredump, data, coredump,,        0x10000,
\ No newline at end of file
diff --git a/partition_8mb.csv b/partition_8mb.csv
index 778b9f2..025f649 100644
--- a/partition_8mb.csv
+++ b/partition_8mb.csv
@@ -1,7 +1,7 @@
 # Name,   Type, SubType, Offset,  Size, Flags
-nvs,      data, nvs,     36K,     20K,
-otadata,  data, ota,     56K,     8K,
-app0,     app,  ota_0,   64K,     1760K,
-app1,     app,  ota_1,   ,        1760K,
-spiffs,   data, spiffs,  ,        410K,
-coredump, data, coredump,,        64K,
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x370000,
+app1,     app,  ota_1,   ,        0x370000,
+spiffs,   data, spiffs,  ,        0xCD000,
+coredump, data, coredump,,        0x10000,
\ No newline at end of file
diff --git a/platformio.ini b/platformio.ini
index 7b0d229..d2abb92 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -20,8 +20,9 @@ framework =  arduino, espidf
 monitor_speed = 115200
 monitor_filters = esp32_exception_decoder, colorize
 board_build.filesystem = littlefs
-extra_scripts = post:scripts/extra_script.py
-board_build.embed_files = x509_crt_bundle
+extra_scripts = pre:scripts/pre_script.py, post:scripts/extra_script.py
+board_build.embed_files = 
+  x509_crt_bundle
 build_flags =
   !python scripts/git_rev.py
   -DLAST_BUILD_TIME=$UNIX_TIME
@@ -35,14 +36,13 @@ lib_deps =
     https://github.com/joltwallet/esp_littlefs.git
     bblanchon/ArduinoJson@^7.2.1
     mathieucarbou/ESPAsyncWebServer @ 3.3.23
-    adafruit/Adafruit BusIO@^1.16.2
-    adafruit/Adafruit MCP23017 Arduino Library@^2.3.2
+    robtillaart/MCP23017@^0.8.0
     adafruit/Adafruit NeoPixel@^1.12.3
-    https://github.com/dsbaars/universal_pin
+    https://github.com/dsbaars/universal_pin#feature/mcp23017_rt
     https://github.com/dsbaars/GxEPD2#universal_pin
     https://github.com/tzapu/WiFiManager.git#v2.0.17
     rblb/Nostrduino@1.2.8
-    
+
 [env:lolin_s3_mini]
 extends = btclock_base
 board = lolin_s3_mini
@@ -64,7 +64,7 @@ build_unflags =
 [env:btclock_rev_b]
 extends = btclock_base
 board = btclock_rev_b
-board_build.partitions = partition.csv
+board_build.partitions = partition_8mb.csv
 build_flags =
     ${btclock_base.build_flags}
     -D MCP_INT_PIN=8
diff --git a/scripts/pre_script.py b/scripts/pre_script.py
new file mode 100644
index 0000000..45d6bea
--- /dev/null
+++ b/scripts/pre_script.py
@@ -0,0 +1,7 @@
+Import("env")
+
+flash_size = env.BoardConfig().get("upload.flash_size", "4MB")
+fs_image_name = f"littlefs_{flash_size}"
+env.Replace(ESP32_FS_IMAGE_NAME=fs_image_name)
+env.Replace(ESP8266_FS_IMAGE_NAME=fs_image_name)
+
diff --git a/src/lib/button_handler.cpp b/src/lib/button_handler.cpp
index 437090d..72f1eaa 100644
--- a/src/lib/button_handler.cpp
+++ b/src/lib/button_handler.cpp
@@ -5,15 +5,15 @@ const TickType_t debounceDelay = pdMS_TO_TICKS(50);
 TickType_t lastDebounceTime = 0;
 
 #ifdef IS_BTCLOCK_V8
-#define BTN_1 0
-#define BTN_2 1
-#define BTN_3 2
-#define BTN_4 3
+#define BTN_1 256
+#define BTN_2 512
+#define BTN_3 1024
+#define BTN_4 2048
 #else
-#define BTN_1 3
-#define BTN_2 2
-#define BTN_3 1
-#define BTN_4 0
+#define BTN_1 2048
+#define BTN_2 1024
+#define BTN_3 512
+#define BTN_4 256
 #endif
 
 void buttonTask(void *parameter) {
@@ -22,11 +22,12 @@ void buttonTask(void *parameter) {
     std::lock_guard<std::mutex> lock(mcpMutex);
 
     TickType_t currentTime = xTaskGetTickCount();
+
     if ((currentTime - lastDebounceTime) >= debounceDelay) {
       lastDebounceTime = currentTime;
 
       if (!digitalRead(MCP_INT_PIN)) {
-        uint pin = mcp1.getLastInterruptPin();
+        uint pin = mcp1.getInterruptFlagRegister();
 
         switch (pin) {
           case BTN_1:
@@ -43,12 +44,12 @@ void buttonTask(void *parameter) {
             break;
         }
       }
-      mcp1.clearInterrupts();
+      mcp1.getInterruptCaptureRegister();
     } else {
     }
     // Very ugly, but for some reason this is necessary
     while (!digitalRead(MCP_INT_PIN)) {
-      mcp1.clearInterrupts();
+      mcp1.getInterruptCaptureRegister();
     }
   }
 }
diff --git a/src/lib/config.cpp b/src/lib/config.cpp
index 8f954b2..e9912a9 100644
--- a/src/lib/config.cpp
+++ b/src/lib/config.cpp
@@ -2,10 +2,12 @@
 
 #define MAX_ATTEMPTS_WIFI_CONNECTION 20
 
+// zlib_turbo zt;
+
 Preferences preferences;
-Adafruit_MCP23X17 mcp1;
+MCP23017 mcp1(0x20);
 #ifdef IS_BTCLOCK_V8
-Adafruit_MCP23X17 mcp2;
+MCP23017 mcp2(0x21);
 #endif
 
 #ifdef HAS_FRONTLIGHT
@@ -35,7 +37,7 @@ void setup()
   }
   {
     std::lock_guard<std::mutex> lockMcp(mcpMutex);
-    if (mcp1.digitalRead(3) == LOW)
+    if (mcp1.read1(3) == LOW)
     {
       preferences.putBool("wifiConfigured", false);
       preferences.remove("txPower");
@@ -46,7 +48,7 @@ void setup()
   }
 
   {
-    if (mcp1.digitalRead(0) == LOW)
+    if (mcp1.read1(0) == LOW)
     {
       // Then loop forever to prevent anything else from writing to the screen
       while (true)
@@ -54,7 +56,7 @@ void setup()
         delay(1000);
       }
     }
-    else if (mcp1.digitalRead(1) == LOW)
+    else if (mcp1.read1(1) == LOW)
     {
       preferences.clear();
       queueLedEffect(LED_EFFECT_WIFI_ERASE_SETTINGS);
@@ -66,6 +68,7 @@ void setup()
   }
 
   setupWifi();
+  //  loadIcons();
 
   setupWebserver();
 
@@ -106,6 +109,7 @@ void setup()
 #endif
 
   forceFullRefresh();
+
 }
 
 void setupWifi()
@@ -132,7 +136,7 @@ void setupWifi()
     bool buttonPress = false;
     {
       std::lock_guard<std::mutex> lockMcp(mcpMutex);
-      buttonPress = (mcp1.digitalRead(2) == LOW);
+      buttonPress = (mcp1.read1(2) == LOW);
     }
 
     {
@@ -507,7 +511,7 @@ void setupHardware()
 
   Wire.begin(I2C_SDA_PIN, I2C_SCK_PIN, 400000);
 
-  if (!mcp1.begin_I2C(0x20))
+  if (!mcp1.begin())
   {
     Serial.println(F("Error MCP23017 1"));
 
@@ -517,17 +521,20 @@ void setupHardware()
   else
   {
     pinMode(MCP_INT_PIN, INPUT_PULLUP);
-    mcp1.setupInterrupts(false, false, LOW);
+//    mcp1.setupInterrupts(false, false, LOW);
+    mcp1.enableControlRegister(MCP23x17_IOCR_ODR);
+
+    mcp1.mirrorInterrupts(true);
 
     for (int i = 0; i < 4; i++)
     {
-      mcp1.pinMode(i, INPUT_PULLUP);
-      mcp1.setupInterruptPin(i, LOW);
+      mcp1.pinMode1(i, INPUT_PULLUP);
+      mcp1.enableInterrupt(i, LOW);
     }
 #ifndef IS_BTCLOCK_V8
     for (int i = 8; i <= 14; i++)
     {
-      mcp1.pinMode(i, OUTPUT);
+      mcp1.pinMode1(i, OUTPUT);
     }
 #endif
   }
@@ -538,7 +545,7 @@ void setupHardware()
 #endif
 
 #ifdef IS_BTCLOCK_V8
-  if (!mcp2.begin_I2C(0x21))
+  if (!mcp2.begin())
   {
     Serial.println(F("Error MCP23017 2"));
 
@@ -790,4 +797,19 @@ const char* getFirmwareFilename() {
     } else {
         return "";
     }
-}
\ No newline at end of file
+}
+
+// void loadIcons() {
+//   size_t ocean_logo_size = 886;
+
+//   int iUncompSize = zt.gzip_info((uint8_t *)epd_compress_bitaxe, ocean_logo_size);
+//       Serial.printf("uncompressed size = %d\n", iUncompSize);
+
+//   uint8_t *pUncompressed;
+//   pUncompressed = (uint8_t *)malloc(iUncompSize+4);
+//   int rc = zt.gunzip((uint8_t *)epd_compress_bitaxe, ocean_logo_size, pUncompressed);
+
+//    if (rc == ZT_SUCCESS) {
+//     Serial.println("Decode success");
+//    }
+// }
\ No newline at end of file
diff --git a/src/lib/config.hpp b/src/lib/config.hpp
index 8c9da90..53abe17 100644
--- a/src/lib/config.hpp
+++ b/src/lib/config.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include <Adafruit_MCP23X17.h>
+#include <MCP23017.h>
 #include <Arduino.h>
 #include <Preferences.h>
 #include <WiFiClientSecure.h>
@@ -83,4 +83,6 @@ void addScreenMapping(int value, const char* name);
 
 int findScreenIndexByValue(int value);
 String replaceAmbiguousChars(String input);
-const char* getFirmwareFilename();
\ No newline at end of file
+const char* getFirmwareFilename();
+
+// void loadIcons();
\ No newline at end of file
diff --git a/src/lib/epd.cpp b/src/lib/epd.cpp
index 1e27eae..2b30f26 100644
--- a/src/lib/epd.cpp
+++ b/src/lib/epd.cpp
@@ -191,7 +191,7 @@ void setupDisplays()
   }
 
   // Hold lower button to enable "storage mode" (prevents burn-in of ePaper displays)
-  if (mcp1.digitalRead(0) == LOW)
+  if (mcp1.read1(0) == LOW)
   {
     setFgColor(GxEPD_BLACK);
     setBgColor(GxEPD_WHITE);
@@ -614,10 +614,19 @@ void renderIcon(const uint dispNum, const String &text, bool partial)
     iconIndex = 4;
   }
 
+  
+ 
+
   displays[dispNum].drawInvertedBitmap(0,0, epd_icons_allArray[iconIndex], 122, 250, getFgColor());
 
+
+//  displays[dispNum].drawInvertedBitmap(0,0, getOceanIcon(), 122, 250, getFgColor());
+
+
 }
 
+
+
 void renderQr(const uint dispNum, const String &text, bool partial)
 {
 #ifdef USE_QR
diff --git a/src/lib/epd.hpp b/src/lib/epd.hpp
index 749f940..1194cf1 100644
--- a/src/lib/epd.hpp
+++ b/src/lib/epd.hpp
@@ -4,6 +4,7 @@
 #include <Fonts/FreeSansBold9pt7b.h>
 #include <GxEPD2_BW.h>
 
+
 #include <mcp23x17_pin.hpp>
 #include <mutex>
 #include <native_pin.hpp>
diff --git a/src/lib/shared.cpp b/src/lib/shared.cpp
index 20bf6d4..3422ff8 100644
--- a/src/lib/shared.cpp
+++ b/src/lib/shared.cpp
@@ -143,4 +143,12 @@ String calculateSHA256(WiFiClient *stream, size_t contentLength) {
   }
   
   return result;
-}
\ No newline at end of file
+}
+
+// uint8_t* getOceanIcon() {
+//   zlib_turbo zt;
+//   int iUncompSize = zt.gzip_info((uint8_t *)ocean_logo_comp, ocean_logo_size);
+//   uint8_t *pUncompressed;
+//   pUncompressed = (uint8_t *)malloc(iUncompSize+4);
+//   zt.gunzip((uint8_t *)ocean_logo_comp, ocean_logo_size, pUncompressed);
+// }
\ No newline at end of file
diff --git a/src/lib/shared.hpp b/src/lib/shared.hpp
index 19d1df0..4753764 100644
--- a/src/lib/shared.hpp
+++ b/src/lib/shared.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
-#include <Adafruit_MCP23X17.h>
+#include "MCP23017.h"
+// #include <zlib_turbo.h>
 #include <ArduinoJson.h>
 #include <WiFiClientSecure.h>
 #include <Preferences.h>
@@ -17,9 +18,9 @@
 
 #include "defaults.hpp"
 
-extern Adafruit_MCP23X17 mcp1;
+extern MCP23017 mcp1;
 #ifdef IS_BTCLOCK_V8
-extern Adafruit_MCP23X17 mcp2;
+extern MCP23017 mcp2;
 #endif
 extern Preferences preferences;
 extern std::mutex mcpMutex;
@@ -73,7 +74,12 @@ const int usPerMinute = 60 * usPerSecond;
 extern const char *isrg_root_x1cert;
 
 extern const uint8_t rootca_crt_bundle_start[] asm("_binary_x509_crt_bundle_start");
+// extern const uint8_t ocean_logo_comp[] asm("_binary_ocean_gz_start");
+// extern const uint8_t ocean_logo_comp_end[] asm("_binary_ocean_gz_end");
 
+// uint8_t* getOceanIcon();
+
+// const size_t ocean_logo_size = ocean_logo_comp_end - ocean_logo_comp;
 
 const PROGMEM char UPDATE_FIRMWARE = U_FLASH;
 const PROGMEM char UPDATE_WEBUI = U_SPIFFS;