diff --git a/data/Tupfile.lua b/data/Tupfile.lua
index 11802a3e6..e6635042d 100644
--- a/data/Tupfile.lua
+++ b/data/Tupfile.lua
@@ -604,6 +604,7 @@ tup.append_table(extra_files, {
  {"kolibrios/3D/voxel_utilites/VOX_CREATOR" , VAR_PROGS .. "/media/voxel_editor/utilites/vox_creator"},
  {"kolibrios/3D/voxel_utilites/VOX_MOVER" , VAR_PROGS .. "/media/voxel_editor/utilites/vox_mover"},
  {"kolibrios/3D/voxel_utilites/VOX_TGL" , VAR_PROGS .. "/media/voxel_editor/utilites/vox_tgl"},
+ {"kolibrios/demos/flag", VAR_PROGS .. "/demos/flag/flag"},
  {"kolibrios/demos/life3", VAR_PROGS .. "/games/life3/life3"},
  {"kolibrios/demos/qjulia", VAR_PROGS .. "/demos/qjulia/trunk/qjulia"},
  {"kolibrios/develop/koldbg", VAR_PROGS .. "/develop/koldbg/koldbg"},
diff --git a/programs/demos/flag/Tupfile.lua b/programs/demos/flag/Tupfile.lua
new file mode 100644
index 000000000..cf4615887
--- /dev/null
+++ b/programs/demos/flag/Tupfile.lua
@@ -0,0 +1,2 @@
+if tup.getconfig("NO_FASM") ~= "" then return end
+tup.rule("flag.asm", "fasm %f %o " .. tup.getconfig("KPACK_CMD"), "flag")
diff --git a/programs/demos/flag/flag.asm b/programs/demos/flag/flag.asm
new file mode 100644
index 000000000..8ce6add29
--- /dev/null
+++ b/programs/demos/flag/flag.asm
@@ -0,0 +1,304 @@
+; SPDX-License-Identifier: GPL-2.0-only
+; Flag - demo program shows a flag with the inscription 'KolibriOS'
+; Copyright (C) 2025 KolibriOS team
+
+use32
+	org 0
+	db 'MENUET01'
+	dd 1,start,i_end,mem,stacktop,0,cur_dir_path
+
+include '../../proc32.inc'
+include '../../macros.inc'
+include '../../KOSfuncs.inc'
+include '../../load_lib.mac'
+include '../../dll.inc'
+include '../../develop/libraries/TinyGL/asm_fork/kosgl.inc'
+include '../../develop/libraries/TinyGL/asm_fork/opengl_const.inc'
+include '../../develop/libraries/TinyGL/asm_fork/examples/fps.inc'
+
+@use_library
+
+;Macro for double type parameters (8 bytes)
+macro glpush GLDoubleVar {
+	push dword[GLDoubleVar+4]
+	push dword[GLDoubleVar]
+}
+
+align 4
+start:
+	load_library name_tgl, library_path, system_path, import_tinygl
+	cmp eax,SF_TERMINATE_PROCESS
+	jz button.exit
+
+	mcall SF_SET_EVENTS_MASK, 0x27
+
+; *** init ***
+	stdcall [kosglMakeCurrent], 0,15,600,380,ctx1
+
+	stdcall [glMatrixMode], GL_MODELVIEW
+	call    [glLoadIdentity]
+
+	stdcall [glClearColor], 0.549, 0.549, 0.588, 1.0
+
+	stdcall [glLightfv], GL_LIGHT0, GL_POSITION, lightpos
+	stdcall [glLightfv], GL_LIGHT0, GL_SPOT_DIRECTION, lightdirect
+
+	stdcall [glEnable], GL_COLOR_MATERIAL
+
+	glpush  p3
+	stdcall [glClearDepth]
+	stdcall [glEnable], GL_CULL_FACE
+	stdcall [glEnable], GL_DEPTH_TEST
+
+	fninit
+
+	stdcall reshape, 600,380
+; *** end init ***
+
+
+align 4
+red_win:
+	call draw_window
+	mcall SF_THREAD_INFO, procinfo,-1
+	mov eax,dword[procinfo.box.height]
+	cmp eax,120
+	jge @f
+		mov eax,120 ;min size
+	@@:
+	sub eax,43
+	mov ebx,dword[procinfo.box.width]
+	cmp ebx,200
+	jge @f
+		mov ebx,200
+	@@:
+	sub ebx,10
+	stdcall reshape, ebx,eax
+
+align 16
+still:
+	call draw_3d
+	cmp dword[stop],1
+	je @f
+		stdcall Fps, 365,4
+
+		mov dword[esp-4],eax
+		fild dword[esp-4]
+		fmul dword[delt_3]
+		fchs
+		fadd dword[dangle]
+		fstp dword[dangle] ;dangle -= 0.01*Fps(x,y)
+
+		mcall SF_WAIT_EVENT_TIMEOUT, 1
+		jmp .end0
+align 4
+	@@:
+	mcall SF_WAIT_EVENT
+	.end0:
+	cmp al, EV_REDRAW
+	jz red_win
+	cmp al, EV_KEY
+	jz key
+	cmp al, EV_BUTTON
+	jz button
+
+	jmp still
+
+
+; new window size or exposure
+align 4
+proc reshape, width:dword, height:dword
+locals
+	dxy dq ?
+endl
+	stdcall [glViewport], 0, 0, [width], [height]
+	stdcall [glMatrixMode], GL_PROJECTION
+	call    [glLoadIdentity]
+	fild    dword[width]
+	fidiv   dword[height]
+	fstp    qword[dxy] ;dxy = width/height
+	glpush  p4
+	glpush  p3
+	glpush  dxy
+	glpush  p1
+	call    [gluPerspective] ;28.0, width/height, 1.0, 40.0
+
+	stdcall [glMatrixMode], GL_MODELVIEW
+	stdcall [glClear], GL_COLOR_BUFFER_BIT + GL_DEPTH_BUFFER_BIT
+	ret
+endp
+
+align 4
+p1 dq 28.0
+p3 dq  1.0
+p4 dq 40.0
+
+align 4
+draw_window:
+	pushad
+	mcall SF_REDRAW,SSF_BEGIN_DRAW
+
+	mcall SF_CREATE_WINDOW, (50 shl 16)+609,(30 shl 16)+425,0x33404040,,title1
+	call [kosglSwapBuffers]
+
+	;Title
+	mcall SF_DRAW_TEXT, (338 shl 16)+4, 0xc0c0c0, fps,    fps.end-fps
+	mcall SF_DRAW_TEXT,   (8 shl 16)+4, 0xc0c0c0, title2, title2.end-title2
+
+	mcall SF_REDRAW,SSF_END_DRAW
+	popad
+	ret
+
+align 4
+key:
+	mcall SF_GET_KEY
+
+	cmp ah,27 ;Esc
+	je button.exit
+
+	cmp ah,112 ;P
+	jne @f
+		xor dword[stop],1
+		jmp still
+	@@:
+
+	jmp still
+
+align 4
+button:
+	mcall SF_GET_BUTTON
+	cmp ah,1
+	jne still
+.exit:
+	mcall SF_TERMINATE_PROCESS
+
+
+align 4
+title1: db 'TinyGL in KolibriOS'
+.end: db 0
+title2: db 'ESC - exit, P - pause'
+.end: db 0
+fps:  db 'FPS:'
+.end: db 0
+
+align 16
+proc draw_3d uses ebx ecx edx esi edi
+locals
+	z dd ?
+endl
+	call    [glLoadIdentity]
+	stdcall [glClear], GL_COLOR_BUFFER_BIT + GL_DEPTH_BUFFER_BIT
+	stdcall [glTranslatef], 0.0, 0.0, -2.0
+	stdcall [glRotatef], 10.0, 0.0, 0.0, 1.0
+	stdcall [glRotatef], 43.0, 0.0, 1.0, 0.0
+	stdcall [glTranslatef], -0.6, -0.2, -0.1
+
+	mov     edi, logo+9*41 ;edi = logo[9][0]
+	mov     esi, 41        ;esi = i
+align 4
+.cycle0: ;for(int i=0;i<41;i++)
+	stdcall [glTranslatef], 0.045, 0.0, 0.0
+	call    [glPushMatrix]
+	fld     dword[angle]
+	fsin
+	fmul    dword[delt_1]
+	fstp    dword[z] ;= 0.08*sin(angle)
+
+	fld     dword[angle]
+	fadd    dword[delt_2]
+	fstp    dword[angle] ;angle += 0.2
+
+	mov     ecx, 9
+	mov     ebx, edi
+
+; ecx = j
+.cycle1: ;for(int j=9;j>=0;j--)
+	cmp     byte[ebx],0 ;if(logo[j][i])
+	je      @f
+	push    0.0 ;b
+	push    0.0 ;g
+	push    1.0 ;r
+	jmp     .end_c2
+@@:
+	push    0.945 ;b
+	push    0.855 ;g
+	push    0.859 ;r
+.end_c2:
+	call    [glColor3f]
+	stdcall [glTranslatef], 0.0, 0.045, 0.0
+	stdcall [glBegin], GL_QUADS
+	stdcall [glVertex3f], 0.0, -0.04,[z]
+	stdcall [glVertex3f], 0.04,-0.04,[z]
+	stdcall [glVertex3f], 0.04, 0.0, [z]
+	stdcall [glVertex3f], 0.0,  0.0, [z]
+	call    [glEnd]
+	add     ebx, -41
+	dec     ecx
+	jnz     .cycle1
+
+	call    [glPopMatrix]
+	inc     edi ;edi = logo[9][i]
+	dec     esi
+	jnz     .cycle0
+
+	mov     edx,dword[dangle]
+	mov     dword[angle],edx
+	call    [kosglSwapBuffers]
+
+	ret 
+endp
+
+align 4        
+delt_1 dd 0.08
+delt_2 dd 0.2
+delt_3 dd 0.01
+
+lightpos dd 2.0, 0.0, -2.5, 1.0
+lightdirect dd 0.0, 0.0, -0.7
+angle dd 0.0
+dangle dd 0.0
+
+stop  dd 0
+
+;[10][41]
+logo db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+db 0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,1,0,1,0,0,0,0,1,0,1,0,1,0,0,1,1,1,0,0,0,1,1,1,0,0,0,\
+	0,0,1,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,0,0,1,0,0,\
+	0,0,1,0,1,0,0,0,0,1,1,0,0,1,0,1,0,1,1,1,0,0,1,0,0,0,1,0,1,0,0,0,1,0,0,1,1,0,0,0,0,\
+	0,0,1,1,1,0,0,0,1,0,0,1,0,1,0,1,0,1,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,1,0,0,0,\
+	0,0,1,0,0,1,0,0,1,0,0,1,0,1,0,1,0,1,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,\
+	0,0,1,0,0,0,1,0,0,1,1,0,0,1,0,1,0,0,1,1,0,0,1,0,0,0,1,0,0,1,1,1,0,0,0,1,1,1,0,0,0
+db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,\
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+
+
+;--------------------------------------------------
+align 4
+import_tinygl:
+
+macro E_LIB n
+{
+	n dd sz_#n
+}
+include '../../develop/libraries/TinyGL/asm_fork/export.inc'
+	dd 0,0
+macro E_LIB n
+{
+	sz_#n db `n,0
+}
+include '../../develop/libraries/TinyGL/asm_fork/export.inc'
+
+;--------------------------------------------------
+system_path db '/sys/lib/'
+name_tgl db 'tinygl.obj',0
+;--------------------------------------------------
+
+align 16
+i_end:
+ctx1 TinyGLContext
+procinfo process_information 
+cur_dir_path rb 4096
+library_path rb 4096
+	rb 4096
+stacktop:
+mem:
diff --git a/programs/develop/libraries/TinyGL/asm_fork/examples/gears.asm b/programs/develop/libraries/TinyGL/asm_fork/examples/gears.asm
index 84cb0b4fd..cf6a09658 100644
--- a/programs/develop/libraries/TinyGL/asm_fork/examples/gears.asm
+++ b/programs/develop/libraries/TinyGL/asm_fork/examples/gears.asm
@@ -1,3 +1,7 @@
+; SPDX-License-Identifier: GPL-2.0-only
+; Gears - 3D gear wheels
+; Copyright (C) 2014-2025 KolibriOS team
+
 use32
 	org 0
 	db 'MENUET01'
@@ -8,6 +12,7 @@ include '../../../../../macros.inc'
 include '../../../../../KOSfuncs.inc'
 include '../../../../../load_lib.mac'
 include '../../../../../dll.inc'
+include '../kosgl.inc'
 include '../opengl_const.inc'
 include 'fps.inc'
 
@@ -18,7 +23,7 @@ macro matr_cell c_funct,c_param,funct,param, dia
 	dia dword[esp-4*(c_param*(c_funct-funct)+(1+c_param-param))]
 }
 
-;Макрос для параметров типа double (8 байт)
+;Macro for double type parameters (8 bytes)
 macro glpush GLDoubleVar {
 	push dword[GLDoubleVar+4]
 	push dword[GLDoubleVar]
@@ -83,8 +88,7 @@ red_win:
 		mov ebx,200
 	@@:
 	sub ebx,10
-		stdcall reshape, ebx,eax
-	.end0:
+	stdcall reshape, ebx,eax
 
 align 16
 still:
@@ -165,8 +169,7 @@ draw_window:
 
 	;Title
 	mcall SF_DRAW_TEXT,(338 shl 16)+4,0xc0c0c0,fps,   fps.end-fps
-	mcall SF_DRAW_TEXT,(8 shl 16)+4,0xc0c0c0,title3,title3.end-title3
-	;mcall SF_DRAW_TEXT,(180 shl 16)+4,0xc0c0c0,title2,title2.end-title2
+	mcall SF_DRAW_TEXT,(8 shl 16)+4,0xc0c0c0,title2,title2.end-title2
 
 	mcall SF_REDRAW,SSF_END_DRAW
 	popad
@@ -247,9 +250,7 @@ button:
 align 4
 title1: db 'TinyGL in KolibriOS'
 .end: db 0
-;title2: db 'F full screen'
-;.end: db 0
-title3: db 'ESC - exit, Arrow keys - rotate, +/- zoom, P - pause'
+title2: db 'ESC - exit, Arrow keys - rotate, +/- zoom, P - pause'
 .end: db 0
 fps:	db 'FPS:'
 .end: db 0
@@ -922,8 +923,7 @@ name_tgl db 'tinygl.obj',0
 
 align 16
 i_end:
-ctx1 db 28 dup (0) ;TinyGLContext or KOSGLContext
-;sizeof.TinyGLContext = 28
+ctx1 TinyGLContext
 procinfo process_information 
 cur_dir_path rb 4096
 library_path rb 4096
diff --git a/programs/develop/libraries/TinyGL/asm_fork/kosgl.asm b/programs/develop/libraries/TinyGL/asm_fork/kosgl.asm
index 0c4a1d0b8..7923ba670 100644
--- a/programs/develop/libraries/TinyGL/asm_fork/kosgl.asm
+++ b/programs/develop/libraries/TinyGL/asm_fork/kosgl.asm
@@ -1,15 +1,6 @@
 ; simple gl like driver for TinyGL and KolibriOS - porting iadn
 
-
-struct TinyGLContext
-	gl_context dd ?
-	xsize dd ? ;+4
-	ysize dd ? ;+8
-	d_x dd ? ;+12
-	d_y dd ? ;+16
-	x dd ? ;+20
-	y dd ? ;+24
-ends
+include 'kosgl.inc'
 
 ;KOSGLContext kosglCreateContext(KOSGLContext shareList, int flags)
 ;{
diff --git a/programs/develop/libraries/TinyGL/asm_fork/kosgl.inc b/programs/develop/libraries/TinyGL/asm_fork/kosgl.inc
new file mode 100644
index 000000000..89fbdb764
--- /dev/null
+++ b/programs/develop/libraries/TinyGL/asm_fork/kosgl.inc
@@ -0,0 +1,9 @@
+struct TinyGLContext
+	gl_context dd ?
+	xsize dd ? ;+4
+	ysize dd ? ;+8
+	d_x   dd ? ;+12
+	d_y   dd ? ;+16
+	x     dd ? ;+20
+	y     dd ? ;+24
+ends