diff --git a/README.md b/README.md
index faca249..daaaf32 100644
--- a/README.md
+++ b/README.md
@@ -1,17 +1,31 @@
-# Gemstone
-Gemstone is a programming language compiler written in C with lex and yacc.
+
+
+
+
+
+## Gemstone
+
+Gemstone is a programming language compiler (short: GSC) written in C based on flex and GNU bison.
+It uses LLVM to produce optimized native binaries for many platforms and uses its own builtin build system for more complex project management.
## Dependencies (build)
### Windows 11
-For setup instruction see issue #30
-
-Requires:
-- Microsoft Build Tools 2022 (includes: CMake, MSVC)
-- WinFlexBison [find it here](https://github.com/lexxmark/winflexbison) (needs to be in PATH)
+#### MSYS2
+Install MSYS2 under Windows 11. Open the MingGW64 environment.
+Install the following packages:
+```
+pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-glib2 bison flex mingw-w64-x86_64-llvm cmake git make
+```
+Clone the repository and build the gemstone compiler:
+```
+cmake . && make release
+```
### GNU/Linux
Requires:
@@ -20,6 +34,8 @@ Requires:
- Make
- bison
- flex
+- LLVM
+- Glib 2.0
## Writing Tests