diff --git a/src/main.c b/src/main.c
index 8351144..8549f91 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,10 +1,17 @@
 #include "../kerep/src/Filesystem/filesystem.h"
 
-int main(const int argc, const char* const* argv){
+i32 main(const i32 argc, const char* const* argv){
     kprintf("\e[37margs:");
-    for(int i=0; i<argc; i++)
+    for(i32 i=0; i<argc; i++)
         kprintf(" %s", argv[i]);
     kprintf("\n");
-    
+    if(argc==1)
+        return 0;
+    char* filePath=argv[argc-1];
+    if(!file_exists(filePath))
+        kprintf("file doesnt exist, creating new\n");
+    tryLast(file_open(filePath, FileOpenMode_ReadWrite), _m_file);
+    File* file=_m_file.value.VoidPtr;
+    tryLast(file_close(file),_m);
     return 0;
 }
diff --git a/src/tui.c b/src/tui.c
new file mode 100644
index 0000000..e4c60b4
--- /dev/null
+++ b/src/tui.c
@@ -0,0 +1,3 @@
+#include "tui.h"
+
+
diff --git a/src/tui.h b/src/tui.h
new file mode 100644
index 0000000..5d15d07
--- /dev/null
+++ b/src/tui.h
@@ -0,0 +1,60 @@
+#include "../kerep/src/base/base.h"
+#include "../kerep/src/String/string.h"
+#include "../kerep/src/kprint/kprint_colors.h"
+
+PACKED_ENUM(UIAnchor,
+    UI_Center=0,
+    UI_Left=1,
+    UI_Right=2,
+    UI_Top=4,
+    UI_Bottom=8,
+    UI_RightTop=UI_Right|UI_Top,
+    UI_RightBottom=UI_Right|UI_Bottom,
+    UI_LeftTop=UI_Left|UI_Top,
+    UI_LeftBottom=UI_Left|UI_Bottom
+)
+
+typedef struct UIElement; 
+
+#define UIElement_stretch (u16)-1
+
+STRUCT(Rect, // Rectangle
+    // right-top corner
+    u16 x; u16 y;
+    u16 w; u16 h;
+)
+
+typedef void (*UIElement_draw_t)(UIElement,Rect);
+
+PACKED_ENUM(UIBorderType,
+    UIBorderType_NoBorder,
+    UIBorderType_Thin,
+    UIBorderType_Thick,
+    UIBorderType_Double
+)
+
+STRUCT(UIBorderParams,
+    UIBorderType right;
+    UIBorderType left;
+    UIBorderType top;
+    UIBorderType bottom;
+)
+
+STRUCT(UIElement,
+    u16 min_width;
+    u16 max_width;
+    u16 min_height;
+    u16 max_height;
+    kp_fgColor fgColor;
+    kp_bgColor bgColor;
+    UIAnchor anchor;
+    UIBorderParams borders;
+    UIElement_draw_t draw;
+)
+
+STRUCT(TextBox,
+    UIElement base;
+    string text;
+)
+
+void UIElement_draw(UIElement uie);