diff --git a/README.md b/README.md
index b1b30e2..68f71eb 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # wasi-libc
 
+wasi-libc is a libc for WebAssembly programs built on top of WASI system calls. It provides a wide array of POSIX-compatible C APIs, including support for standard I/O, file I/O, filesystem manipulation, memory management, time, string, environment variables, program startup, and many other APIs.
+
diff --git a/wasi-libc.spec b/wasi-libc.spec
new file mode 100644
index 0000000..a55b2f4
--- /dev/null
+++ b/wasi-libc.spec
@@ -0,0 +1,65 @@
+Name:          wasi-libc
+Version:       0+20240828git.1b19fc6
+Release:       1mamba
+Summary:       WASI libc implementation for WebAssembly
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/WebAssembly/wasi-libc
+Source:        https://github.com/WebAssembly/wasi-libc.git/main@1b19fc6/wasi-libc-%{version}.tar.bz2
+License:       Apache License 2.0, MIT
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+
+%description
+wasi-libc is a libc for WebAssembly programs built on top of WASI system calls. It provides a wide array of POSIX-compatible C APIs, including support for standard I/O, file I/O, filesystem manipulation, memory management, time, string, environment variables, program startup, and many other APIs.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       WASI libc implementation for WebAssembly
+
+%description -n lib%{name}-devel
+wasi-libc is a libc for WebAssembly programs built on top of WASI system calls. It provides a wide array of POSIX-compatible C APIs, including support for standard I/O, file I/O, filesystem manipulation, memory management, time, string, environment variables, program startup, and many other APIs.
+This package contains libraries and header files for developing applications that use %{name}.
+
+#% debug_package
+
+%prep
+%setup -q
+
+%build
+make_options=(
+    WASM_CC=/usr/bin/clang
+    WASM_AR=/usr/bin/llvm-ar
+    WASM_NM=/usr/bin/llvm-nm
+)
+
+%make ${make_options[@]} TARGET_TRIPLE=wasm32-wasi
+%make ${make_options[@]} TARGET_TRIPLE=wasm32-wasip1
+%make ${make_options[@]} TARGET_TRIPLE=wasm32-wasip1-threads THREAD_MODEL=posix
+%make ${make_options[@]} TARGET_TRIPLE=wasm32-wasip2 WASI_SNAPSHOT=p2
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+install -dm755 %{buildroot}%{_datadir}
+cp -dr --preserve=mode,timestamp sysroot %{buildroot}%{_datadir}/wasi-sysroot
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_datadir}/wasi-sysroot
+%dir %{_datadir}/wasi-sysroot/include
+%{_datadir}/wasi-sysroot/include/*
+%dir %{_datadir}/wasi-sysroot/lib
+%{_datadir}/wasi-sysroot/lib/*
+%dir %{_datadir}/wasi-sysroot/share
+%{_datadir}/wasi-sysroot/share/*
+%doc LICENSE README.md
+
+%changelog
+* Sat Sep 14 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 0+20240828git.1b19fc6-1mamba
+- package created using the webbuild interface