diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..8365e6d
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,41 @@
+# Configure with [fxsdk build-fx] or [fxsdk build-cg], which provide the
+# toolchain file and module path of the fxSDK
+
+cmake_minimum_required(VERSION 3.15)
+project(MyAddin)
+
+include(GenerateG1A)
+include(GenerateG3A)
+include(Fxconv)
+find_package(Gint 2.9 REQUIRED)
+
+set(SOURCES
+  src/main.c
+  # ...
+)
+# Shared assets, fx-9860G-only assets and fx-CG-50-only assets
+set(ASSETS
+  # ...
+)
+set(ASSETS_fx
+  assets-fx/example.png
+  # ...
+)
+set(ASSETS_cg
+  assets-cg/example.png
+  # ...
+)
+
+fxconv_declare_assets(${ASSETS} ${ASSETS_fx} ${ASSETS_cg} WITH_METADATA)
+
+add_executable(myaddin ${SOURCES} ${ASSETS} ${ASSETS_${FXSDK_PLATFORM}})
+target_compile_options(myaddin PRIVATE -Wall -Wextra -Os)
+target_link_libraries(myaddin Gint::Gint)
+
+if("${FXSDK_PLATFORM_LONG}" STREQUAL fx9860G)
+  generate_g1a(TARGET myaddin OUTPUT "Keydemo.g1a"
+    NAME "Keydemo" ICON assets-fx/icon.png)
+elseif("${FXSDK_PLATFORM_LONG}" STREQUAL fxCG50)
+  generate_g3a(TARGET myaddin OUTPUT "Keydemo.g3a"
+    NAME "Keydemo" ICONS assets-cg/icon-uns.png assets-cg/icon-sel.png)
+endif()
diff --git a/assets-cg/example.png b/assets-cg/example.png
new file mode 100644
index 0000000..8826800
Binary files /dev/null and b/assets-cg/example.png differ
diff --git a/assets-cg/fxconv-metadata.txt b/assets-cg/fxconv-metadata.txt
new file mode 100644
index 0000000..d435d5f
--- /dev/null
+++ b/assets-cg/fxconv-metadata.txt
@@ -0,0 +1,3 @@
+example.png:
+  type: bopti-image
+  name: img_example
diff --git a/assets-cg/icon-sel.png b/assets-cg/icon-sel.png
new file mode 100644
index 0000000..7137b50
Binary files /dev/null and b/assets-cg/icon-sel.png differ
diff --git a/assets-cg/icon-uns.png b/assets-cg/icon-uns.png
new file mode 100644
index 0000000..3c99f62
Binary files /dev/null and b/assets-cg/icon-uns.png differ
diff --git a/assets-fx/example.png b/assets-fx/example.png
new file mode 100644
index 0000000..b26ba9a
Binary files /dev/null and b/assets-fx/example.png differ
diff --git a/assets-fx/fxconv-metadata.txt b/assets-fx/fxconv-metadata.txt
new file mode 100644
index 0000000..d435d5f
--- /dev/null
+++ b/assets-fx/fxconv-metadata.txt
@@ -0,0 +1,3 @@
+example.png:
+  type: bopti-image
+  name: img_example
diff --git a/assets-fx/icon.png b/assets-fx/icon.png
new file mode 100644
index 0000000..c92f12a
Binary files /dev/null and b/assets-fx/icon.png differ
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..3e56686
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,301 @@
+/*
+ * SuperInput demo - A new way to type text on casio fx calculators !
+ * Copyright (C) 2022  Mibi88
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/.
+ */
+
+#include <gint/display.h>
+#include <gint/keyboard.h>
+
+#define INSZ 20
+#define INSZS1 (INSZ-1)
+
+unsigned char input[INSZ], keyc;
+int pos, lenght, shift, alpha, inchar, key;
+
+void shiftstrpartright(int start){
+	unsigned char c;
+	unsigned char copy[INSZ];
+	for(int i=0;i<INSZ;i++){
+		copy[i] = input[i];
+	}
+	for(int i=start;i<INSZS1;i++){
+		c = copy[i];
+		input[i+1] = c;
+	}
+}
+void shiftstrpartleft(int start){
+	unsigned char c;
+	for(int i=start;i<INSZS1;i++){
+		c = input[i+1];
+		input[i] = c;
+	}
+	input[INSZS1] = ' ';
+}
+
+int main(void)
+{
+	for(int i=0;i<INSZ;i++){
+		input[i] = ' ';
+	}
+	pos = 0;
+	lenght = 0;
+	shift = 0;
+	alpha = 1;
+	key = 0;
+	clearevents();
+	int opt = 0xDC;
+	while(!keydown(KEY_EXIT)){
+		key = getkey_opt(opt, NULL).key;
+		inchar = 1;
+		keyc = ' ';
+		if(alpha){
+			if(!shift){
+				switch(key){
+					case KEY_SQUARE:
+						keyc = '\''; break;
+					case KEY_POWER:
+						keyc = '^'; break;
+					case KEY_XOT:
+						keyc = 'a'; break;
+					case KEY_LOG:
+						keyc = 'b'; break;
+					case KEY_LN:
+						keyc = 'c'; break;
+					case KEY_SIN:
+						keyc = 'd'; break;
+					case KEY_COS:
+						keyc = 'e'; break;
+					case KEY_TAN:
+						keyc = 'f'; break;
+					case KEY_FRAC:
+						keyc = 'g'; break;
+					case KEY_FD:
+						keyc = 'h'; break;
+					case KEY_LEFTP:
+						keyc = 'i'; break;
+					case KEY_RIGHTP:
+						keyc = 'j'; break;
+					case KEY_COMMA:
+						keyc = 'k'; break;
+					case KEY_ARROW:
+						keyc = 'l'; break;
+					case KEY_7:
+						keyc = 'm'; break;
+					case KEY_8:
+						keyc = 'n'; break;
+					case KEY_9:
+						keyc = 'o'; break;
+					case KEY_4:
+						keyc = 'p'; break;
+					case KEY_5:
+						keyc = 'q'; break;
+					case KEY_6:
+						keyc = 'r'; break;
+					case KEY_MUL:
+						keyc = 's'; break;
+					case KEY_DIV:
+						keyc = 't'; break;
+					case KEY_1:
+						keyc = 'u'; break;
+					case KEY_2:
+						keyc = 'v'; break;
+					case KEY_3:
+						keyc = 'w'; break;
+					case KEY_ADD:
+						keyc = 'x'; break;
+					case KEY_SUB:
+						keyc = 'y'; break;
+					case KEY_0:
+						keyc = 'z'; break;
+					case KEY_DOT:
+						keyc = ' '; break;
+					case KEY_EXP:
+						keyc = '"'; break;
+					case KEY_NEG:
+						keyc = '_'; break;
+					case KEY_EXE:
+						keyc = '\n'; break;
+					default:
+						inchar = 0; break;
+				};
+			}else{
+				switch(key){
+					case KEY_SQUARE:
+						keyc = '!'; break;
+					case KEY_POWER:
+						keyc = '?'; break;
+					case KEY_XOT:
+						keyc = 'A'; break;
+					case KEY_LOG:
+						keyc = 'B'; break;
+					case KEY_LN:
+						keyc = 'C'; break;
+					case KEY_SIN:
+						keyc = 'D'; break;
+					case KEY_COS:
+						keyc = 'E'; break;
+					case KEY_TAN:
+						keyc = 'F'; break;
+					case KEY_FRAC:
+						keyc = 'G'; break;
+					case KEY_FD:
+						keyc = 'H'; break;
+					case KEY_LEFTP:
+						keyc = 'I'; break;
+					case KEY_RIGHTP:
+						keyc = 'J'; break;
+					case KEY_COMMA:
+						keyc = 'K'; break;
+					case KEY_ARROW:
+						keyc = 'L'; break;
+					case KEY_7:
+						keyc = 'M'; break;
+					case KEY_8:
+						keyc = 'N'; break;
+					case KEY_9:
+						keyc = 'O'; break;
+					case KEY_4:
+						keyc = 'P'; break;
+					case KEY_5:
+						keyc = 'Q'; break;
+					case KEY_6:
+						keyc = 'R'; break;
+					case KEY_MUL:
+						keyc = 'S'; break;
+					case KEY_DIV:
+						keyc = 'T'; break;
+					case KEY_1:
+						keyc = 'U'; break;
+					case KEY_2:
+						keyc = 'V'; break;
+					case KEY_3:
+						keyc = 'W'; break;
+					case KEY_ADD:
+						keyc = 'X'; break;
+					case KEY_SUB:
+						keyc = 'Y'; break;
+					case KEY_0:
+						keyc = 'Z'; break;
+					case KEY_DOT:
+						keyc = ' '; break;
+					case KEY_EXP:
+						keyc = '#'; break;
+					case KEY_NEG:
+						keyc = '$'; break;
+					case KEY_EXE:
+						keyc = '\n'; break;
+					default:
+						inchar = 0; break;
+				};
+			}
+		}else{
+			switch(key){
+				case KEY_SQUARE:
+					keyc = '%'; break;
+				case KEY_POWER:
+					keyc = '\\'; break;
+				case KEY_XOT:
+					keyc = '{'; break;
+				case KEY_LOG:
+					keyc = '}'; break;
+				case KEY_LN:
+					keyc = '['; break;
+				case KEY_SIN:
+					keyc = ']'; break;
+				case KEY_COS:
+					keyc = '~'; break;
+				case KEY_TAN:
+					keyc = '@'; break;
+				case KEY_FRAC:
+					keyc = '<'; break;
+				case KEY_FD:
+					keyc = '>'; break;
+				case KEY_LEFTP:
+					keyc = '('; break;
+				case KEY_RIGHTP:
+					keyc = ')'; break;
+				case KEY_COMMA:
+					keyc = ','; break;
+				case KEY_ARROW:
+					keyc = '='; break;
+				case KEY_7:
+					keyc = '7'; break;
+				case KEY_8:
+					keyc = '8'; break;
+				case KEY_9:
+					keyc = '9'; break;
+				case KEY_4:
+					keyc = '4'; break;
+				case KEY_5:
+					keyc = '5'; break;
+				case KEY_6:
+					keyc = '6'; break;
+				case KEY_MUL:
+					keyc = '*'; break;
+				case KEY_DIV:
+					keyc = '/'; break;
+				case KEY_1:
+					keyc = '1'; break;
+				case KEY_2:
+					keyc = '2'; break;
+				case KEY_3:
+					keyc = '3'; break;
+				case KEY_ADD:
+					keyc = '+'; break;
+				case KEY_SUB:
+					keyc = '-'; break;
+				case KEY_0:
+					keyc = '0'; break;
+				case KEY_DOT:
+					keyc = '.'; break;
+				case KEY_EXP:
+					keyc = ';'; break;
+				case KEY_NEG:
+					keyc = '|'; break;
+				case KEY_EXE:
+					keyc = '\n'; break;
+				default:
+					inchar = 0; break;
+			};
+		}
+		if(inchar && lenght < INSZS1){
+			shiftstrpartright(pos);
+			input[pos] = keyc;
+			pos++;
+			lenght++;
+		}
+		if(key == KEY_LEFT && pos > 0){
+			pos--;
+		}else if(key == KEY_RIGHT && pos < lenght){
+			pos++;
+		}
+		if(key == KEY_SHIFT){
+			shift = !shift;
+		}else if(key == KEY_ALPHA){
+			alpha = !alpha;
+		}else if(key == KEY_DEL && pos > 0){
+			shiftstrpartleft(pos-1);
+			lenght--;
+			pos--;
+		}
+		dclear(C_WHITE);
+		dtext(1, 1, C_BLACK, (char*)input);
+		dline(pos*6, 1, pos*6, 7, C_BLACK);
+		dupdate();
+		clearevents();
+	}
+	return 1;
+}