diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7174db7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/libmimalloc-sys-0.1.28.crate
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..9a3377d
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,25 @@
+Copyright 2019 Octavian Oncescu
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/rust-libmimalloc-sys.spec b/rust-libmimalloc-sys.spec
new file mode 100644
index 0000000..4d1f79f
--- /dev/null
+++ b/rust-libmimalloc-sys.spec
@@ -0,0 +1,163 @@
+# Generated by rust2rpm 23
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate libmimalloc-sys
+
+Name:           rust-libmimalloc-sys
+Version:        0.1.28
+Release:        %autorelease
+Summary:        Sys crate wrapping the mimalloc allocator
+
+License:        MIT
+URL:            https://crates.io/crates/libmimalloc-sys
+Source:         %{crates_source}
+# PR to add license text: https://github.com/purpleprotocol/mimalloc_rust/pull/88
+Source1:        https://raw.githubusercontent.com/purpleprotocol/mimalloc_rust/master/LICENSE.txt
+
+BuildRequires:  rust-packaging >= 21
+
+# TODO: get this to build against system mimalloc
+# or ask mimalloc dev to switch to mimalloc-sys
+Provides:       bundled(mimalloc) = 2.0.7
+
+%global _description %{expand:
+Sys crate wrapping the mimalloc allocator.}
+
+%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.txt
+%license %{crate_instdir}/c_src/mimalloc/LICENSE
+%{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}+cty-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+cty-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "cty" feature of the "%{crate}" crate.
+
+%files       -n %{name}+cty-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+debug-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+debug-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "debug" feature of the "%{crate}" crate.
+
+%files       -n %{name}+debug-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+debug_in_debug-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+debug_in_debug-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "debug_in_debug" feature of the "%{crate}" crate.
+
+%files       -n %{name}+debug_in_debug-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+extended-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+extended-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "extended" feature of the "%{crate}" crate.
+
+%files       -n %{name}+extended-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+local_dynamic_tls-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+local_dynamic_tls-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "local_dynamic_tls" feature of the "%{crate}" crate.
+
+%files       -n %{name}+local_dynamic_tls-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+override-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+override-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "override" feature of the "%{crate}" crate.
+
+%files       -n %{name}+override-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+secure-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+secure-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "secure" feature of the "%{crate}" crate.
+
+%files       -n %{name}+secure-devel
+%ghost %{crate_instdir}/Cargo.toml
+
+%prep
+%autosetup -n %{crate}-%{version_no_tilde} -p1
+# copy license text in
+cp -p %{SOURCE1} .
+# these are Windows .exe and .dlls, and unneeded
+# see build.rs for the ones that are actually referenced
+rm -rf c_src/mimalloc/bin
+%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..005f199
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (libmimalloc-sys-0.1.28.crate) = e3f1ebe2a87af1f6fa52222d4f3441a632bdba0698afcb1fbbb8e353ff01aab79497e1204fe0edca305119695a30b39c34f9a12846cd523cce9d747dd5a9212c