diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..cc89326
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/base64-0.13.1.crate
diff --git a/README.md b/README.md
deleted file mode 100644
index 959e6a9..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-base64_0.13
-
-The rust-base64_0.13 package
diff --git a/base64-fix-metadata.diff b/base64-fix-metadata.diff
new file mode 100644
index 0000000..51c7382
--- /dev/null
+++ b/base64-fix-metadata.diff
@@ -0,0 +1,12 @@
+--- base64-0.13.1/Cargo.toml	1970-01-01T00:00:01+00:00
++++ base64-0.13.1/Cargo.toml	2023-02-23T15:49:25.031941+00:00
+@@ -38,9 +38,6 @@
+ name = "benchmarks"
+ harness = false
+ 
+-[dev-dependencies.criterion]
+-version = "=0.3.2"
+-
+ [dev-dependencies.rand]
+ version = "0.6.1"
+ 
diff --git a/rust-base64_0.13.spec b/rust-base64_0.13.spec
new file mode 100644
index 0000000..c1fcb61
--- /dev/null
+++ b/rust-base64_0.13.spec
@@ -0,0 +1,98 @@
+# Generated by rust2rpm 24
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate base64
+
+Name:           rust-base64_0.13
+Version:        0.13.1
+Release:        %autorelease
+Summary:        Encodes and decodes base64 as bytes or utf8
+
+# Upstream license specification: MIT/Apache-2.0
+License:        MIT OR Apache-2.0
+URL:            https://crates.io/crates/base64
+Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# * drop unused, benchmark-only criterion dev-dependency to speed up builds
+Patch:          base64-fix-metadata.diff
+
+BuildRequires:  rust-packaging >= 21
+
+%global _description %{expand:
+Encodes and decodes base64 as bytes or utf8.}
+
+%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 %{crate_instdir}/LICENSE-APACHE
+%license %{crate_instdir}/LICENSE-MIT
+%doc %{crate_instdir}/README.md
+%doc %{crate_instdir}/RELEASE-NOTES.md
+%{crate_instdir}/
+
+%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 %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+alloc-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+alloc-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "alloc" feature of the "%{crate}" crate.
+
+%files       -n %{name}+alloc-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+std-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "std" feature of the "%{crate}" crate.
+
+%files       -n %{name}+std-devel
+%ghost %{crate_instdir}/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..dfd767b
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (base64-0.13.1.crate) = 1eb76aff9a84057f2ccb7082e9c57b015c2d71a28173089b02e7aacd09a7d311bedf0a943529611ada29f8d7b536d7ae4de256d98eee8450003a3a9a652bda4b