diff --git a/tools/merger/join.py b/tools/merger/join.py
new file mode 100644
index 0000000..7bfd4a8
--- /dev/null
+++ b/tools/merger/join.py
@@ -0,0 +1,101 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2023-present Péter Magyar
+# Copyright (c) 2020 Krzysztof Gabis
+#
+# 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.
+
+import sys
+import argparse
+import re
+import os
+
+template_args = {}
+input_path = ""
+
+print_includes_dict = dict()
+
+def print_includes(f):
+    s = f.split("\n")
+
+    for l in s:
+        if l.startswith("#include <"):
+            l = l.strip()
+
+            if not l in print_includes_dict:
+                print(l)
+                print_includes_dict[l] = 1
+
+
+def process_file(f):
+    #print_includes(f)
+
+    return f.replace('#include ', '//#include ')
+
+def process_command(name, value):
+    if name == "ARG":
+        print("Appending arg: " + value)
+        return template_args[value]
+    elif name == "FILE":
+        file_path = os.path.join(input_path, value)
+        print("Appending file: " + value)
+        with open(file_path, "r") as file:
+            res = "#line 1 \"" + value + "\"\n"
+            res += process_file(file.read())
+            res += "#line 0"
+            return res
+
+def process_template(template):
+    regex = r"{{([A-Z]*):([\w./]*)}}"
+    matches = re.finditer(regex, template, re.MULTILINE)
+    for _, match in enumerate(matches, start=1):
+        res = process_command(match.group(1), match.group(2))
+        template = template.replace(match.group(0), res)
+
+    return template
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--template", required=True)
+    parser.add_argument("--path", required=True)
+    parser.add_argument("--output", required=True)
+
+    args, unknown = parser.parse_known_args()
+
+    global input_path
+    input_path = args.path
+
+    if len(unknown) % 2 != 0:
+        print("Uneven number or template args")
+        return 1
+    for i in range(0, len(unknown), 2):
+        arg = unknown[i]
+        if arg.startswith("--"):
+            template_args[arg[2:]] = unknown[i + 1]
+
+    with open(args.template, "r") as f:
+        output = process_template(f.read())
+
+    with open(args.output, "w") as f:
+        f.write(output)
+
+    print("OK")
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/tools/merger/join.sh b/tools/merger/join.sh
new file mode 100755
index 0000000..363d00a
--- /dev/null
+++ b/tools/merger/join.sh
@@ -0,0 +1,9 @@
+
+mkdir -p out
+
+cd ..
+cd ..
+
+python misc/merger/join.py --template misc/merger/sfw.h.inl --path . --output misc/merger/out/sfw.h
+python misc/merger/join.py --template misc/merger/sfw.cpp.inl --path . --output misc/merger/out/sfw.cpp
+
diff --git a/tools/merger/sfw.cpp.inl b/tools/merger/sfw.cpp.inl
new file mode 100644
index 0000000..465edf3
--- /dev/null
+++ b/tools/merger/sfw.cpp.inl
@@ -0,0 +1,8 @@
+
+#include "sfw.h"
+
+
+{{FILE:core/crypto/mbedtls/library/md5.c}}
+
+
+
diff --git a/tools/merger/sfw.h.inl b/tools/merger/sfw.h.inl
new file mode 100644
index 0000000..2dc9fbf
--- /dev/null
+++ b/tools/merger/sfw.h.inl
@@ -0,0 +1,36 @@
+#ifndef SFW_H
+#define SFW_H
+
+// https://github.com/Relintai/sfw
+
+/*
+Copyright (c) 2023-present Péter Magyar.
+
+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.
+*/
+
+// TODO gather all licenses to here
+
+
+
+
+{{FILE:core/typedefs.h}}
+
+
+#endif