diff --git a/.gitignore b/.gitignore
index 6bc851d..bdd1203 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ fb.pnm
 fb.raw
 screen.*
 output
+kobo/
 tags
 tmp
 *.o
diff --git a/docker/Dockerfile.kobo b/docker/Dockerfile.kobo
index d99fef3..a728460 100644
--- a/docker/Dockerfile.kobo
+++ b/docker/Dockerfile.kobo
@@ -1,6 +1,6 @@
-FROM ghcr.io/toltec-dev/python:v1.1
+FROM ghcr.io/toltec-dev/python:v4.0
 
-RUN pip3 install okp
+RUN pip3 install --break-system-packages okp
 
 WORKDIR /opt/
 RUN apt update
diff --git a/scripts/build/build_kobo_root.sh b/scripts/build/build_kobo_root.sh
index 151d667..72c9b91 100644
--- a/scripts/build/build_kobo_root.sh
+++ b/scripts/build/build_kobo_root.sh
@@ -37,6 +37,10 @@ tar_files() {
 make_remux_sh() {
   cat > ${PLUGIN_DIR}/bin/remux.sh << REMUX_SH
 #!/bin/sh
+while [ \$(pgrep -f "sh /opt/bin/remux.sh" | wc -l) -gt 2 ]; do
+  kill \$(pgrep -f "sh /opt/bin/remux.sh" | head -n1)
+done
+killall remux
 while true; do
   sleep 1;
   /opt/bin/apps/remux;
diff --git a/scripts/build/docker_build.sh b/scripts/build/docker_build.sh
index 7775699..99537ea 100644
--- a/scripts/build/docker_build.sh
+++ b/scripts/build/docker_build.sh
@@ -2,10 +2,11 @@ OUTDIR=artifacts
 PACKAGE="${1}"
 TARGET=${TARGET:-rm}
 FBINK=${FBINK}
+CROSS_TC=${CROSS_TC:-arm-linux-gnueabihf}
 mkdir ${OUTDIR}
 docker run -i --rm -v "${PWD}/${OUTDIR}:/mnt/artifacts" rmkit:${TARGET} /bin/bash << COMMANDS
 mkdir -p src/build
-FBINK=${FBINK} TARGET=${TARGET} make ${PACKAGE}
+CROSS_TC=${CROSS_TC} FBINK=${FBINK} TARGET=${TARGET} make ${PACKAGE}
 mkdir -p /mnt/artifacts/${TARGET}/
 cp -r src/build/* /mnt/artifacts/${TARGET}/
 chown -R $(id -u):$(id -u) /mnt/artifacts
diff --git a/src/remux/launcher.cpy b/src/remux/launcher.cpy
index f6c52ee..797c55b 100644
--- a/src/remux/launcher.cpy
+++ b/src/remux/launcher.cpy
@@ -31,6 +31,8 @@
 #define DYNAMIC_BPP
 #define HAS_ROTATION
 #define PORTRAIT_ONLY
+#define DRAW_APP_BEHIND_MODAL
+#define GRAB_INPUT
 #define USE_GRAYSCALE_32BIT
 #endif
 
@@ -178,7 +180,7 @@ class AppBackground: public ui::Widget:
       fb->set_rotation(vfb->rotation)
     #endif
 
-    fb->perform_redraw(true)
+    fb->perform_redraw(true, true)
     fb->dirty = 1
 
 class AppDialog: public ui::Pager:
@@ -347,8 +349,7 @@ class App: public IApp:
       ui::set_timeout([=]() {
         ui::MainLoop::in.unmonitor(ui::MainLoop::in.wacom.fd)
       }, 10)
-      if USE_KOREADER_WORKAROUND and CURRENT_APP != "KOReader":
-        ui::MainLoop::in.ungrab()
+      ui::MainLoop::in.ungrab()
     ;
 
     app_bg = new AppBackground(0, 0, w, h)
diff --git a/src/rmkit/fb/fb.cpy b/src/rmkit/fb/fb.cpy
index 2599ed5..2b6103b 100644
--- a/src/rmkit/fb/fb.cpy
+++ b/src/rmkit/fb/fb.cpy
@@ -135,7 +135,7 @@ namespace framebuffer:
     // function: redraw_screen
     // if the framebuffer is dirty, redraws the dirty area
     // of the framebuffer.
-    int redraw_screen(bool full_screen=false):
+    int redraw_screen(bool full_screen=false, bool flash=false):
       if dirty == 0:
         return 0
 
@@ -145,7 +145,10 @@ namespace framebuffer:
       if dirty_area.y1 == 0 || dirty_area.x1 == 0:
         return 0
 
-      return self.perform_redraw(full_screen)
+      return self.perform_redraw(full_screen, flash)
+
+    virtual int perform_redraw(bool, bool):
+      return 0
 
     virtual int perform_redraw(bool):
       return 0
@@ -704,7 +707,7 @@ namespace framebuffer:
 
       return vinfo.xres, vinfo.yres
 
-    int perform_redraw(bool full_screen=false):
+    int perform_redraw(bool full_screen=false, bool flash=false):
       um := 0
       mxcfb_update_data update_data
       mxcfb_rect update_rect
@@ -781,7 +784,7 @@ namespace framebuffer:
     virtual tuple<int,int> get_virtual_size():
       return self.width, self.height
 
-    int perform_redraw(bool):
+    int perform_redraw(bool, bool):
       #ifndef PERF_BUILD
       msync(self.fbmem, self.byte_size, MS_SYNC)
       self.save_png()
@@ -920,8 +923,9 @@ namespace framebuffer:
       mem := (remarkable_color*) fbink_get_fb_pointer(self.fd, &size)
       return mem
 
-    int perform_redraw(bool full_screen=false):
+    int perform_redraw(bool full_screen=false, bool flash=false):
       config_.wfm_mode = self.waveform_mode
+      config_.is_flashing = flash
       if !full_screen:
         fbink_refresh(self.fd,
           dirty_area.y0,
@@ -931,6 +935,7 @@ namespace framebuffer:
           &config_)
       else:
         fbink_refresh(self.fd, 0, 0, self.display_width, self.height, &config_)
+      config_.is_flashing = false
       return 0
 
     void wait_for_redraw(uint32_t update_marker):
@@ -979,7 +984,7 @@ namespace framebuffer:
 
       return vinfo.xres, vinfo.yres
 
-    int perform_redraw(bool full_screen=false):
+    int perform_redraw(bool full_screen=false, bool flash=false):
       um := 0
       hwtcon_update_data update_data
       hwtcon_rect update_rect
diff --git a/src/rmkit/input/device_id.cpy b/src/rmkit/input/device_id.cpy
index b6077b9..a3c8430 100644
--- a/src/rmkit/input/device_id.cpy
+++ b/src/rmkit/input/device_id.cpy
@@ -27,7 +27,7 @@
 // event2: gpio keys
 // ev_key: home, left, right, power, wakeup
 namespace input:
-  enum EV_TYPE { TOUCH, STYLUS, BUTTONS, UNKNOWN, INVALID }
+  enum EV_TYPE { TOUCH, STYLUS, BUTTONS, GPIO, UNKNOWN, INVALID }
   static bool check_bit_set(int fd, int type, int i):
     unsigned long bit[NBITS(KEY_MAX)]
     ioctl(fd, EVIOCGBIT(type, KEY_MAX), bit);
@@ -55,6 +55,9 @@ namespace input:
     if check_bit_set(fd, EV_KEY, BTN_TOOL_PEN):
       return TOUCH
 
+    if check_bit_set(fd, EV_MSC, MSC_RAW):
+        return GPIO
+
     return UNKNOWN
 
   static bool supports_stylus(int fd):
diff --git a/src/rmkit/input/input.cpy b/src/rmkit/input/input.cpy
index 293f28c..fa4342b 100644
--- a/src/rmkit/input/input.cpy
+++ b/src/rmkit/input/input.cpy
@@ -8,6 +8,7 @@
 
 #include "../defines.h"
 #include "../fb/fb_info.h"
+#include "../shared/proc.h"
 #include "events.h"
 #include "gestures.h"
 #include "device_id.h"
@@ -100,6 +101,7 @@ namespace input:
 
   class Input:
     private:
+    ui::TimerPtr ungrab_interval = nullptr;
 
     public:
     int max_fd
@@ -109,6 +111,7 @@ namespace input:
     InputClass<WacomEvent, SynMotionEvent> wacom
     InputClass<TouchEvent, SynMotionEvent> touch
     InputClass<ButtonEvent, SynKeyEvent> button
+    InputClass<ButtonEvent, SynKeyEvent> gpio
 
     vector<SynMotionEvent> all_motion_events
     vector<SynKeyEvent> all_key_events
@@ -133,6 +136,20 @@ namespace input:
       self.open_device("/dev/input/event2")
       self.open_device("/dev/input/event3")
       self.open_device("/dev/input/event4")
+      self.grab()
+      std::function<void()> ungrab_task = [=]() {
+        debug "UNGRAB_TASK"
+        vector<string> bins = { "nickel" }
+        procs := proc::list_procs(bins)
+        if procs.size() > 0:
+          debug "UNGRABBING"
+          self.ungrab()
+          debug "UNGRABBED"
+          ui::cancel_timer(ungrab_interval)
+        else:
+          debug "RESCHEDULING"
+      }
+      ungrab_interval = ui::set_interval(ungrab_task, 500)
       #else
       if USE_RESIM:
         debug "MONITORING RESIM"
@@ -155,7 +172,7 @@ namespace input:
       return
 
     void close_devices():
-      vector<IInputClass> fds = { self.touch, self.wacom, self.button}
+      vector<IInputClass> fds = { self.touch, self.wacom, self.button, self.gpio}
       for auto in : fds:
         if in.fd > 0:
           close(in.fd)
@@ -183,6 +200,10 @@ namespace input:
           self.touch.set_fd(fd)
           debug "AS TOUCH"
           break
+        case GPIO:
+          debug ": GPIO"
+          self.gpio.set_fd(fd)
+          break
         case INVALID:
         case UNKNOWN:
         default:
@@ -252,17 +273,11 @@ namespace input:
       return
 
     void grab():
-      #ifndef REMARKABLE
-      return
-      #endif
-      for auto fd : { self.touch.fd, self.wacom.fd, self.button.fd }:
+      for auto fd : { self.touch.fd, self.wacom.fd, self.button.fd, self.gpio.fd }:
         ioctl(fd, EVIOCGRAB, true)
 
     void ungrab():
-      #ifndef REMARKABLE
-      return
-      #endif
-      for auto fd : { self.touch.fd, self.wacom.fd, self.button.fd }:
+      for auto fd : { self.touch.fd, self.wacom.fd, self.button.fd, self.gpio.fd }:
         ioctl(fd, EVIOCGRAB, false)
 
     void check_reopen():
diff --git a/src/rmkit/rmkit.cpy b/src/rmkit/rmkit.cpy
index 529bdcb..89e6334 100644
--- a/src/rmkit/rmkit.cpy
+++ b/src/rmkit/rmkit.cpy
@@ -1,4 +1,7 @@
 #include "fb/fb.h"
+#ifdef KOBO
+#include "../shared/proc.h" // Needed to prevent nickel from grabbing inputs
+#endif
 #include "input/input.h"
 #include "util/signals.h"
 #include "ui/ui.h"
diff --git a/src/rmkit/ui/task_queue.cpy b/src/rmkit/ui/task_queue.cpy
index 61db745..eb1373c 100644
--- a/src/rmkit/ui/task_queue.cpy
+++ b/src/rmkit/ui/task_queue.cpy
@@ -31,33 +31,45 @@ namespace ui:
       TaskQueue::wakeup()
 
     static void run_tasks():
+      task_q.lock()
       if TaskQueue::tasks.size() == 0:
+        task_q.unlock()
         return
+      task_q.unlock()
 
 
-      thread *th = nullptr
-      try:
-        th = new thread([=]() {
-          count := 4
-          while tasks.size() > 0 and count > 0:
-            count--
-            task_q.lock()
-            t := TaskQueue::tasks.front()
-            TaskQueue::tasks.pop_front()
-            task_q.unlock()
-
+      if task_m.try_lock():
+        try:
+          std::thread* th = new thread([=]() {
             task_m.lock()
-            t()
+            debug "TASK THREAD STARTED"
+            count := 4
+            while count > 0:
+              count--
+              task_q.lock()
+              if tasks.size() == 0:
+                task_q.unlock()
+                break
+              t := TaskQueue::tasks.front()
+              TaskQueue::tasks.pop_front()
+              task_q.unlock()
+  
+              try:
+                t()
+              catch (const std::exception& e):
+                debug "TASK EXEC EXC", e.what()
+            debug "TASKS DONE"
+            TaskQueue::wakeup()
             task_m.unlock()
+          })
+          th->detach()
+          task_m.unlock()
+        catch (const std::exception& e):
+          debug "NEW THREAD EXC", e.what()
           TaskQueue::wakeup()
-        })
-        th->detach()
-        if th != nullptr
-          delete th
-      catch (const std::exception& e):
-        debug "NEW THREAD EXC", e.what()
-        TaskQueue::wakeup()
-
+      else:
+        debug "TASK QUEUE WAS RUNNING, NOT RELAUNCHING"
+  
 
   // class: ui::TaskQueue
   // The task queue is a way of scheduling tasks from side threads to be run