diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..00abbca
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+/results_*/
+/*.src.rpm
+
+/darling_macro-0.12.4.crate
diff --git a/README.md b/README.md
deleted file mode 100644
index d294263..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-darling_macro0.12
-
-The rust-darling_macro0.12 package
diff --git a/rust-darling_macro0.12.spec b/rust-darling_macro0.12.spec
new file mode 100644
index 0000000..a748548
--- /dev/null
+++ b/rust-darling_macro0.12.spec
@@ -0,0 +1,72 @@
+# Generated by rust2rpm 20
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate darling_macro
+
+Name:           rust-%{crate}0.12
+Version:        0.12.4
+Release:        %autorelease
+Summary:        Internal support for a proc-macro library for reading attributes into structs
+
+# Upstream license specification: MIT
+License:        MIT
+URL:            https://crates.io/crates/darling_macro
+Source:         %{crates_source}
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Internal support for a proc-macro library for reading attributes into structs
+when implementing custom derives. Use https://crates.io/crates/darling in your
+code.}
+
+%description %{_description}
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "%{crate}" crate.
+
+%files          devel
+%license LICENSE
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
+
+%package     -n %{name}+default-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+default-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "default" feature of the "%{crate}" crate.
+
+%files       -n %{name}+default-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%prep
+%autosetup -n %{crate}-%{version_no_tilde} -p1
+%cargo_prep
+
+%generate_buildrequires
+%cargo_generate_buildrequires
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%changelog
+%autochangelog
diff --git a/sources b/sources
new file mode 100644
index 0000000..32595b1
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (darling_macro-0.12.4.crate) = 324c778f4243b0d34d10998dd1ef7f911fba9392928eb8626c8ce389c599f6fe39791b1558a4480d366bdaea8be78f9d6a4f7ded48a4a020e721bda240804e1f