diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d548a13
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+/results_*/
+/*.src.rpm
+
+/nix-0.22.2.crate
diff --git a/README.md b/README.md
deleted file mode 100644
index 7544a65..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-nix0.22
-
-The rust-nix0.22 package
diff --git a/nix-fix-metadata.diff b/nix-fix-metadata.diff
new file mode 100644
index 0000000..f153ed4
--- /dev/null
+++ b/nix-fix-metadata.diff
@@ -0,0 +1,19 @@
+--- nix-0.22.2/Cargo.toml	1970-01-01T00:00:01+00:00
++++ nix-0.22.2/Cargo.toml	2022-01-14T10:59:34.857295+00:00
+@@ -47,7 +47,7 @@
+ name = "test-ptymaster-drop"
+ path = "test/test_ptymaster_drop.rs"
+ [dependencies.bitflags]
+-version = ">= 1.1.0, < 1.3.0"
++version = "1.1.0"
+ 
+ [dependencies.cfg-if]
+ version = "1.0"
+@@ -73,7 +73,3 @@
+ version = "0.5.1"
+ [target."cfg(not(target_os = \"redox\"))".dependencies.memoffset]
+ version = "0.6.3"
+-[target."cfg(target_os = \"dragonfly\")".build-dependencies.cc]
+-version = "1"
+-[target."cfg(target_os = \"freebsd\")".dev-dependencies.sysctl]
+-version = "0.1"
diff --git a/rust-nix0.22.spec b/rust-nix0.22.spec
new file mode 100644
index 0000000..9019a67
--- /dev/null
+++ b/rust-nix0.22.spec
@@ -0,0 +1,76 @@
+# Generated by rust2rpm 20
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate nix
+
+Name:           rust-%{crate}0.22
+Version:        0.22.2
+Release:        %autorelease
+Summary:        Rust friendly bindings to *nix APIs
+
+# Upstream license specification: MIT
+License:        MIT
+URL:            https://crates.io/crates/nix
+Source:         %{crates_source}
+# Initial patched metadata
+# * relax bitflags dependency (compatibility with Rust < 1.46 is not required)
+# * drop DragonflyBSD/FreeBSD-specific dependencies
+Patch0:         nix-fix-metadata.diff
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  rust-packaging
+
+%global _description %{expand:
+Rust friendly bindings to *nix APIs.}
+
+%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
+%doc CHANGELOG.md CONTRIBUTING.md CONVENTIONS.md README.md
+%{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
+# skip a test that tends to hang in systemd-nspawn environments
+%cargo_test -- -- --skip sys::test_socket::test_af_alg_aead
+%endif
+
+%changelog
+%autochangelog
diff --git a/sources b/sources
new file mode 100644
index 0000000..b001b9a
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (nix-0.22.2.crate) = 860c6cfe77117c28ea54fc5587a125e8ab14acec2dcf77f70d3e43ea574f5272ebb05999b266142616bd92aa613f8c2f60b026b95e758975601df9345a2dbf71