diff --git a/KISS.h b/KISS.h
new file mode 100644
index 0000000..ea31251
--- /dev/null
+++ b/KISS.h
@@ -0,0 +1,13 @@
+#define FEND 0xC0
+#define FESC 0xDB
+#define TFEND 0xDC
+#define TFESC 0xDD
+
+#define CMD_UNKNOWN 0xFE
+#define CMD_DATA 0x00
+#define CMD_PREAMBLE 0x01
+#define CMD_P 0x02
+#define CMD_SLOTTIME 0x03
+#define CMD_TXTAIL 0x04
+#define CMD_FULLDUPLEX 0x05
+#define CMD_SETHARDWARE 0x06
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..a25bd7a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Mark Qvist / unsigned.io
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..3db1134
--- /dev/null
+++ b/makefile
@@ -0,0 +1,19 @@
+.DEFAULT_GOAL := all
+.PHONY: all clean install
+
+compiler = gcc
+flags = -lm
+
+all: tncattach
+
+clean:
+	@echo "Cleaning tncattach build..."
+	rm tncattach
+
+tncattach:
+	@echo "Making tncattach..."
+	@echo "Compiling with: ${compiler}"
+	${compiler} ${flags} tncattach.c -o tncattach
+
+install: all
+	@echo "Installing tncattach..."
\ No newline at end of file
diff --git a/tncattach.c b/tncattach.c
new file mode 100644
index 0000000..52c0875
--- /dev/null
+++ b/tncattach.c
@@ -0,0 +1,5 @@
+#include "KISS.h"
+
+int main() {
+	return 0;
+}
\ No newline at end of file