diff --git a/README.md b/README.md
index e22225c..c18a304 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # rustup
 
+Rust toolchain installer.
+
diff --git a/rustup.spec b/rustup.spec
new file mode 100644
index 0000000..3260eba
--- /dev/null
+++ b/rustup.spec
@@ -0,0 +1,48 @@
+Name:          rustup
+Version:       1.22.1
+Release:       1mamba
+Summary:       Rust toolchain installer
+Group:         Applications/Development
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/rust-lang/rustup.git
+Source:        https://github.com/rust-lang/rustup.git/%{version}/rustup-%{version}.tar.bz2
+License:       Apache License 2.0, MIT
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libcurl-devel
+BuildRequires: libgcc
+BuildRequires: liblzma-devel
+BuildRequires: libopenssl-devel
+## AUTOBUILDREQ-END
+Requires:      /usr/bin/cargo
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Rust toolchain installer.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+cargo build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+install -D -m0755 target/debug/rustup-init %{buildroot}%{_bindir}/rustup
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/rustup
+%doc LICENSE-APACHE LICENSE-MIT
+
+%changelog
+* Tue Nov 03 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.22.1-1mamba
+- package created using the webbuild interface