diff --git a/cyberpunk-splash/Cargo.nix b/cyberpunk-splash/Cargo.nix
new file mode 100644
index 0000000..4e8e832
--- /dev/null
+++ b/cyberpunk-splash/Cargo.nix
@@ -0,0 +1,2836 @@
+
+# This file was @generated by crate2nix 0.10.0 with the command:
+#   "generate"
+# See https://github.com/kolloch/crate2nix for more info.
+
+{ nixpkgs ? <nixpkgs>
+, pkgs ? import nixpkgs { config = {}; }
+, lib ? pkgs.lib
+, stdenv ? pkgs.stdenv
+, buildRustCrateForPkgs ? if buildRustCrate != null
+    then lib.warn "crate2nix: Passing `buildRustCrate` as argument to Cargo.nix is deprecated. If you don't customize `buildRustCrate`, replace `callPackage ./Cargo.nix {}` by `import ./Cargo.nix { inherit pkgs; }`, and if you need to customize `buildRustCrate`, use `buildRustCrateForPkgs` instead." (_: buildRustCrate)
+    else pkgs: pkgs.buildRustCrate
+  # Deprecated
+, buildRustCrate ? null
+  # This is used as the `crateOverrides` argument for `buildRustCrate`.
+, defaultCrateOverrides ? pkgs.defaultCrateOverrides
+  # The features to enable for the root_crate or the workspace_members.
+, rootFeatures ? [ "default" ]
+  # If true, throw errors instead of issueing deprecation warnings.
+, strictDeprecation ? false
+  # Used for conditional compilation based on CPU feature detection.
+, targetFeatures ? []
+  # Whether to perform release builds: longer compile times, faster binaries.
+, release ? true
+  # Additional crate2nix configuration if it exists.
+, crateConfig
+  ? if builtins.pathExists ./crate-config.nix
+    then pkgs.callPackage ./crate-config.nix {}
+    else {}
+}:
+
+rec {
+  #
+  # "public" attributes that we attempt to keep stable with new versions of crate2nix.
+  #
+
+  rootCrate = rec {
+    packageId = "cyberpunk-splash";
+
+    # Use this attribute to refer to the derivation building your root crate package.
+    # You can override the features with rootCrate.build.override { features = [ "default" "feature1" ... ]; }.
+    build = internal.buildRustCrateWithFeatures {
+      inherit packageId;
+    };
+
+    # Debug support which might change between releases.
+    # File a bug if you depend on any for non-debug work!
+    debug = internal.debugCrate { inherit packageId; };
+  };
+  # Refer your crate build derivation by name here.
+  # You can override the features with
+  # workspaceMembers."${crateName}".build.override { features = [ "default" "feature1" ... ]; }.
+  workspaceMembers = {
+    "cyberpunk-splash" = rec {
+      packageId = "cyberpunk-splash";
+      build = internal.buildRustCrateWithFeatures {
+        packageId = "cyberpunk-splash";
+      };
+
+      # Debug support which might change between releases.
+      # File a bug if you depend on any for non-debug work!
+      debug = internal.debugCrate { inherit packageId; };
+    };
+  };
+
+  # A derivation that joins the outputs of all workspace members together.
+  allWorkspaceMembers = pkgs.symlinkJoin {
+      name = "all-workspace-members";
+      paths =
+        let members = builtins.attrValues workspaceMembers;
+        in builtins.map (m: m.build) members;
+  };
+
+  #
+  # "internal" ("private") attributes that may change in every new version of crate2nix.
+  #
+
+  internal = rec {
+    # Build and dependency information for crates.
+    # Many of the fields are passed one-to-one to buildRustCrate.
+    #
+    # Noteworthy:
+    # * `dependencies`/`buildDependencies`: similar to the corresponding fields for buildRustCrate.
+    #   but with additional information which is used during dependency/feature resolution.
+    # * `resolvedDependencies`: the selected default features reported by cargo - only included for debugging.
+    # * `devDependencies` as of now not used by `buildRustCrate` but used to
+    #   inject test dependencies into the build
+
+    crates = {
+      "anyhow" = rec {
+        crateName = "anyhow";
+        version = "1.0.70";
+        edition = "2018";
+        sha256 = "1r1py8nk0xj6h21jgww8f0zazdvjimbnl1hiacj8i3cz1xgcxs3x";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        features = {
+          "backtrace" = [ "dep:backtrace" ];
+          "default" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "autocfg" = rec {
+        crateName = "autocfg";
+        version = "1.1.0";
+        edition = "2015";
+        sha256 = "1ylp3cb47ylzabimazvbz9ms6ap784zhb6syaz6c1jqpmcmq0s6l";
+        authors = [
+          "Josh Stone <cuviper@gmail.com>"
+        ];
+
+      };
+      "bitflags" = rec {
+        crateName = "bitflags";
+        version = "1.3.2";
+        edition = "2018";
+        sha256 = "12ki6w8gn1ldq7yz9y680llwk5gmrhrzszaa17g1sbrw2r2qvwxy";
+        authors = [
+          "The Rust Project Developers"
+        ];
+        features = {
+          "compiler_builtins" = [ "dep:compiler_builtins" ];
+          "core" = [ "dep:core" ];
+          "rustc-dep-of-std" = [ "core" "compiler_builtins" ];
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "cairo-rs" = rec {
+        crateName = "cairo-rs";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "0wg8n0yz8p71db4iznp7949xzx92vmzgbhdd51lj5wcasksm9bx8";
+        libName = "cairo";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "cairo-sys-rs";
+            packageId = "cairo-sys-rs";
+            rename = "ffi";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+            optional = true;
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "thiserror";
+            packageId = "thiserror";
+          }
+        ];
+        features = {
+          "default" = [ "use_glib" ];
+          "dox" = [ "ffi/dox" "glib/dox" "freetype" ];
+          "freetype" = [ "ffi/freetype" "freetype-rs" ];
+          "freetype-rs" = [ "dep:freetype-rs" ];
+          "glib" = [ "dep:glib" ];
+          "pdf" = [ "ffi/pdf" ];
+          "png" = [ "ffi/png" ];
+          "ps" = [ "ffi/ps" ];
+          "script" = [ "ffi/script" ];
+          "svg" = [ "ffi/svg" ];
+          "use_glib" = [ "glib" "ffi/use_glib" ];
+          "v1_16" = [ "ffi/v1_16" ];
+          "v1_18" = [ "v1_16" "ffi/v1_18" ];
+          "win32-surface" = [ "ffi/win32-surface" ];
+          "xcb" = [ "ffi/xcb" ];
+          "xlib" = [ "ffi/xlib" ];
+        };
+        resolvedDefaultFeatures = [ "default" "glib" "use_glib" ];
+      };
+      "cairo-sys-rs" = rec {
+        crateName = "cairo-sys-rs";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "0kjrcfsgp397a4kqfnsr4ssimqpm4j8jdvjy30zybr9h3nh84lzm";
+        libName = "cairo_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+            optional = true;
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "x11/dox" "glib/dox" ];
+          "glib" = [ "dep:glib" ];
+          "use_glib" = [ "glib" ];
+          "v1_18" = [ "v1_16" ];
+          "win32-surface" = [ "winapi" ];
+          "winapi" = [ "dep:winapi" ];
+          "x11" = [ "dep:x11" ];
+          "xlib" = [ "x11" ];
+        };
+        resolvedDefaultFeatures = [ "glib" "use_glib" ];
+      };
+      "cfg-expr" = rec {
+        crateName = "cfg-expr";
+        version = "0.14.0";
+        edition = "2021";
+        sha256 = "1im4f8zrd0gaflv4sxjr2vdn2z4600lyhz32bjc342llc5a2anx3";
+        authors = [
+          "Embark <opensource@embark-studios.com>"
+          "Jake Shadle <jake.shadle@embark-studios.com>"
+        ];
+        dependencies = [
+          {
+            name = "smallvec";
+            packageId = "smallvec";
+          }
+        ];
+        features = {
+          "target-lexicon" = [ "dep:target-lexicon" ];
+          "targets" = [ "target-lexicon" ];
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "cyberpunk-splash" = rec {
+        crateName = "cyberpunk-splash";
+        version = "0.1.0";
+        edition = "2021";
+        crateBin = [
+          { name = "cyberpunk-splash"; path = "src/main.rs"; }
+        ];
+        src = lib.cleanSourceWith { filter = sourceFilter;  src = ./.; };
+        dependencies = [
+          {
+            name = "cairo-rs";
+            packageId = "cairo-rs";
+          }
+          {
+            name = "gio";
+            packageId = "gio";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+          }
+          {
+            name = "gtk4";
+            packageId = "gtk4";
+            rename = "gtk";
+          }
+        ];
+
+      };
+      "field-offset" = rec {
+        crateName = "field-offset";
+        version = "0.3.5";
+        edition = "2015";
+        sha256 = "0dc58qzbfis0i031d741aavvi7crzlb4nvfacg461s7n1y03mkx3";
+        authors = [
+          "Diggory Blake <diggsey@googlemail.com>"
+        ];
+        dependencies = [
+          {
+            name = "memoffset";
+            packageId = "memoffset";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "rustc_version";
+            packageId = "rustc_version";
+          }
+        ];
+
+      };
+      "futures-channel" = rec {
+        crateName = "futures-channel";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "1wmm9wm5zjigxz61qkscmxp7c30zp08dy63spjz5pch9gva1hmcm";
+        dependencies = [
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+        ];
+        features = {
+          "alloc" = [ "futures-core/alloc" ];
+          "default" = [ "std" ];
+          "futures-sink" = [ "dep:futures-sink" ];
+          "sink" = [ "futures-sink" ];
+          "std" = [ "alloc" "futures-core/std" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "default" "std" ];
+      };
+      "futures-core" = rec {
+        crateName = "futures-core";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "137fdxy5amg9zkpa1kqnj7bnha6b94fmddz59w973x96gqxmijjb";
+        features = {
+          "default" = [ "std" ];
+          "portable-atomic" = [ "dep:portable-atomic" ];
+          "std" = [ "alloc" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "std" ];
+      };
+      "futures-executor" = rec {
+        crateName = "futures-executor";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "1q468di96knnla72xdvswic1ir2qkrf5czsdigc5n4l86a1fxv6c";
+        dependencies = [
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-task";
+            packageId = "futures-task";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+          }
+        ];
+        features = {
+          "default" = [ "std" ];
+          "num_cpus" = [ "dep:num_cpus" ];
+          "std" = [ "futures-core/std" "futures-task/std" "futures-util/std" ];
+          "thread-pool" = [ "std" "num_cpus" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "futures-io" = rec {
+        crateName = "futures-io";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "0r4rhkdhq1my4fahlhz59barqa511bylq813w3w4gvbidq4p9zsg";
+        features = {
+          "default" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "futures-macro" = rec {
+        crateName = "futures-macro";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "0wpfsqxwqk5k569xl0jzz4zxy85x695mndf7y9jn66q6jid59jl9";
+        procMacro = true;
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 2.0.13";
+            features = [ "full" ];
+          }
+        ];
+
+      };
+      "futures-task" = rec {
+        crateName = "futures-task";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "0ravgihyarbplj32zp60asirfnaalw2wfsa0afhnl3kcpqrd3lvn";
+        features = {
+          "default" = [ "std" ];
+          "std" = [ "alloc" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "std" ];
+      };
+      "futures-util" = rec {
+        crateName = "futures-util";
+        version = "0.3.28";
+        edition = "2018";
+        sha256 = "0cwmls9369w6q6hwlbm10q0plr6hmg8w28fpqvv4rmbjnx01xc16";
+        dependencies = [
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-macro";
+            packageId = "futures-macro";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-task";
+            packageId = "futures-task";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+          {
+            name = "pin-utils";
+            packageId = "pin-utils";
+          }
+          {
+            name = "slab";
+            packageId = "slab";
+            optional = true;
+          }
+        ];
+        features = {
+          "alloc" = [ "futures-core/alloc" "futures-task/alloc" ];
+          "async-await-macro" = [ "async-await" "futures-macro" ];
+          "channel" = [ "std" "futures-channel" ];
+          "compat" = [ "std" "futures_01" ];
+          "default" = [ "std" "async-await" "async-await-macro" ];
+          "futures-channel" = [ "dep:futures-channel" ];
+          "futures-io" = [ "dep:futures-io" ];
+          "futures-macro" = [ "dep:futures-macro" ];
+          "futures-sink" = [ "dep:futures-sink" ];
+          "futures_01" = [ "dep:futures_01" ];
+          "io" = [ "std" "futures-io" "memchr" ];
+          "io-compat" = [ "io" "compat" "tokio-io" ];
+          "memchr" = [ "dep:memchr" ];
+          "portable-atomic" = [ "futures-core/portable-atomic" ];
+          "sink" = [ "futures-sink" ];
+          "slab" = [ "dep:slab" ];
+          "std" = [ "alloc" "futures-core/std" "futures-task/std" "slab" ];
+          "tokio-io" = [ "dep:tokio-io" ];
+          "unstable" = [ "futures-core/unstable" "futures-task/unstable" ];
+          "write-all-vectored" = [ "io" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "async-await" "async-await-macro" "default" "futures-macro" "slab" "std" ];
+      };
+      "gdk-pixbuf" = rec {
+        crateName = "gdk-pixbuf";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "1gsrgxnz3mgi20r6axm6qnfq58qdh3chgl85k0yvs1xlqvhgn8xh";
+        libName = "gdk_pixbuf";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "gdk-pixbuf-sys";
+            packageId = "gdk-pixbuf-sys";
+            rename = "ffi";
+          }
+          {
+            name = "gio";
+            packageId = "gio";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gio/dox" "ffi/dox" ];
+          "v2_40" = [ "ffi/v2_40" ];
+          "v2_42" = [ "v2_40" "ffi/v2_42" ];
+        };
+      };
+      "gdk-pixbuf-sys" = rec {
+        crateName = "gdk-pixbuf-sys";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "0fqy77sb5zrqjf0cjgllxpaqn0v3l595d4nkfy9djjgd8hmvshbv";
+        libName = "gdk_pixbuf_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "gio-sys";
+            packageId = "gio-sys";
+            rename = "gio";
+          }
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" "gio/dox" ];
+          "v2_42" = [ "v2_40" ];
+        };
+      };
+      "gdk4" = rec {
+        crateName = "gdk4";
+        version = "0.6.3";
+        edition = "2021";
+        sha256 = "1zri4z8nxsp88mvk8vhk6xqpc4g1l69zi9w1z3fkwvm211jgkay3";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "cairo-rs";
+            packageId = "cairo-rs";
+          }
+          {
+            name = "gdk-pixbuf";
+            packageId = "gdk-pixbuf";
+          }
+          {
+            name = "gdk4-sys";
+            packageId = "gdk4-sys";
+            rename = "ffi";
+          }
+          {
+            name = "gio";
+            packageId = "gio";
+            features = [ "v2_66" ];
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+            features = [ "v2_66" ];
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "pango";
+            packageId = "pango";
+            features = [ "v1_46" ];
+          }
+        ];
+        features = {
+          "dox" = [ "ffi/dox" "glib/dox" "gio/dox" "gdk-pixbuf/dox" "cairo-rs/dox" "pango/dox" ];
+          "v4_10" = [ "ffi/v4_10" "v4_8" ];
+          "v4_2" = [ "ffi/v4_2" ];
+          "v4_4" = [ "ffi/v4_4" "v4_2" ];
+          "v4_6" = [ "ffi/v4_6" "v4_4" ];
+          "v4_8" = [ "ffi/v4_8" "v4_6" ];
+        };
+      };
+      "gdk4-sys" = rec {
+        crateName = "gdk4-sys";
+        version = "0.6.3";
+        edition = "2021";
+        sha256 = "0r7dm9vyzg2xlzdgxqa190gd1403mhw4q09x754rq24cc2hjmj8v";
+        libName = "gdk4_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "cairo-sys-rs";
+            packageId = "cairo-sys-rs";
+            rename = "cairo";
+          }
+          {
+            name = "gdk-pixbuf-sys";
+            packageId = "gdk-pixbuf-sys";
+            rename = "gdk_pixbuf";
+          }
+          {
+            name = "gio-sys";
+            packageId = "gio-sys";
+            rename = "gio";
+          }
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "pango-sys";
+            packageId = "pango-sys";
+            rename = "pango";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "pkg-config";
+            packageId = "pkg-config";
+          }
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" "gio/dox" "gdk_pixbuf/dox" "pango/dox" "cairo/dox" ];
+          "v4_10" = [ "v4_8" ];
+          "v4_4" = [ "v4_2" ];
+          "v4_6" = [ "v4_4" ];
+          "v4_8" = [ "v4_6" ];
+        };
+      };
+      "gio" = rec {
+        crateName = "gio";
+        version = "0.17.4";
+        edition = "2021";
+        sha256 = "09918ip09dabwllr2xcsnkfgb36331i4db173inngv12x6sa6q92";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "futures-channel";
+            packageId = "futures-channel";
+          }
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-io";
+            packageId = "futures-io";
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "gio-sys";
+            packageId = "gio-sys";
+            rename = "ffi";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+          {
+            name = "smallvec";
+            packageId = "smallvec";
+          }
+          {
+            name = "thiserror";
+            packageId = "thiserror";
+          }
+        ];
+        devDependencies = [
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            features = [ "io" ];
+          }
+        ];
+        features = {
+          "dox" = [ "ffi/dox" "glib/dox" ];
+          "v2_58" = [ "ffi/v2_58" "glib/v2_58" ];
+          "v2_60" = [ "v2_58" "ffi/v2_60" "glib/v2_60" ];
+          "v2_62" = [ "v2_60" "ffi/v2_62" "glib/v2_62" ];
+          "v2_64" = [ "v2_62" "ffi/v2_64" "glib/v2_64" ];
+          "v2_66" = [ "v2_64" "ffi/v2_66" "glib/v2_66" ];
+          "v2_68" = [ "v2_66" "ffi/v2_68" "glib/v2_68" ];
+          "v2_70" = [ "v2_68" "ffi/v2_70" "glib/v2_70" ];
+          "v2_72" = [ "v2_70" "ffi/v2_72" "glib/v2_72" ];
+          "v2_74" = [ "v2_72" "ffi/v2_74" "glib/v2_74" ];
+          "v2_76" = [ "v2_74" "ffi/v2_76" "glib/v2_76" ];
+        };
+        resolvedDefaultFeatures = [ "v2_58" "v2_60" "v2_62" "v2_64" "v2_66" ];
+      };
+      "gio-sys" = rec {
+        crateName = "gio-sys";
+        version = "0.17.4";
+        edition = "2021";
+        sha256 = "19b2wdwdn6gbjnqac2klymbi51wj27jazv24a92li2wnsyq467bb";
+        libName = "gio_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "winapi";
+            packageId = "winapi";
+            target = { target, features }: (target."windows" or false);
+            features = [ "ws2def" "winsock2" ];
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" ];
+          "v2_60" = [ "v2_58" ];
+          "v2_62" = [ "v2_60" ];
+          "v2_64" = [ "v2_62" ];
+          "v2_66" = [ "v2_64" ];
+          "v2_68" = [ "v2_66" ];
+          "v2_70" = [ "v2_68" ];
+          "v2_72" = [ "v2_70" ];
+          "v2_74" = [ "v2_72" ];
+          "v2_76" = [ "v2_74" ];
+        };
+        resolvedDefaultFeatures = [ "v2_58" "v2_60" "v2_62" "v2_64" "v2_66" ];
+      };
+      "glib" = rec {
+        crateName = "glib";
+        version = "0.17.5";
+        edition = "2021";
+        sha256 = "0ws7hmiaywwvdjp9njjjfs92a0cy68p2sb19d5lxg5b1fmhk1dfg";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "futures-channel";
+            packageId = "futures-channel";
+          }
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-executor";
+            packageId = "futures-executor";
+          }
+          {
+            name = "futures-task";
+            packageId = "futures-task";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+          }
+          {
+            name = "gio-sys";
+            packageId = "gio-sys";
+            rename = "gio_ffi";
+            optional = true;
+          }
+          {
+            name = "glib-macros";
+            packageId = "glib-macros";
+          }
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "ffi";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject_ffi";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "memchr";
+            packageId = "memchr";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "smallvec";
+            packageId = "smallvec";
+          }
+          {
+            name = "thiserror";
+            packageId = "thiserror";
+          }
+        ];
+        features = {
+          "default" = [ "gio" ];
+          "dox" = [ "ffi/dox" "gobject_ffi/dox" "log_macros" ];
+          "gio" = [ "gio_ffi" ];
+          "gio_ffi" = [ "dep:gio_ffi" ];
+          "log" = [ "rs-log" ];
+          "log_macros" = [ "log" ];
+          "rs-log" = [ "dep:rs-log" ];
+          "v2_58" = [ "ffi/v2_58" "gobject_ffi/v2_58" ];
+          "v2_60" = [ "v2_58" "ffi/v2_60" ];
+          "v2_62" = [ "v2_60" "ffi/v2_62" "gobject_ffi/v2_62" ];
+          "v2_64" = [ "v2_62" "ffi/v2_64" ];
+          "v2_66" = [ "v2_64" "ffi/v2_66" "gobject_ffi/v2_66" ];
+          "v2_68" = [ "v2_66" "ffi/v2_68" "gobject_ffi/v2_68" ];
+          "v2_70" = [ "v2_68" "ffi/v2_70" "gobject_ffi/v2_70" ];
+          "v2_72" = [ "v2_70" "ffi/v2_72" "gobject_ffi/v2_72" ];
+          "v2_74" = [ "v2_72" "ffi/v2_74" "gobject_ffi/v2_74" ];
+          "v2_76" = [ "v2_74" "ffi/v2_76" "gobject_ffi/v2_76" ];
+        };
+        resolvedDefaultFeatures = [ "default" "gio" "gio_ffi" "v2_58" "v2_60" "v2_62" "v2_64" "v2_66" ];
+      };
+      "glib-macros" = rec {
+        crateName = "glib-macros";
+        version = "0.17.7";
+        edition = "2021";
+        sha256 = "1vyrx239ggyj8qcv1yivykaxp43ik1cam0q74sbg31i0293g6k5w";
+        procMacro = true;
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "anyhow";
+            packageId = "anyhow";
+          }
+          {
+            name = "heck";
+            packageId = "heck";
+          }
+          {
+            name = "proc-macro-crate";
+            packageId = "proc-macro-crate";
+          }
+          {
+            name = "proc-macro-error";
+            packageId = "proc-macro-error";
+          }
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 1.0.109";
+            features = [ "full" ];
+          }
+        ];
+
+      };
+      "glib-sys" = rec {
+        crateName = "glib-sys";
+        version = "0.17.4";
+        edition = "2021";
+        sha256 = "19c0ars1rpcyfx7k63k2pghxjh898f1mvwgzmmhqwm5zl780mw29";
+        libName = "glib_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "v2_60" = [ "v2_58" ];
+          "v2_62" = [ "v2_60" ];
+          "v2_64" = [ "v2_62" ];
+          "v2_66" = [ "v2_64" ];
+          "v2_68" = [ "v2_66" ];
+          "v2_70" = [ "v2_68" ];
+          "v2_72" = [ "v2_70" ];
+          "v2_74" = [ "v2_72" ];
+          "v2_76" = [ "v2_74" ];
+        };
+        resolvedDefaultFeatures = [ "v2_58" "v2_60" "v2_62" "v2_64" "v2_66" ];
+      };
+      "gobject-sys" = rec {
+        crateName = "gobject-sys";
+        version = "0.17.4";
+        edition = "2021";
+        sha256 = "1l4kcw17y6dxb6b6wkw4f2ly624kmxbghg6av2r34im60005prqm";
+        libName = "gobject_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" ];
+          "v2_62" = [ "v2_58" ];
+          "v2_66" = [ "v2_62" ];
+          "v2_68" = [ "v2_66" ];
+          "v2_70" = [ "v2_68" ];
+          "v2_72" = [ "v2_70" ];
+          "v2_74" = [ "v2_72" ];
+          "v2_76" = [ "v2_74" ];
+        };
+        resolvedDefaultFeatures = [ "v2_58" "v2_62" "v2_66" ];
+      };
+      "graphene-rs" = rec {
+        crateName = "graphene-rs";
+        version = "0.17.1";
+        edition = "2021";
+        sha256 = "0mk2nkhs0cad45k0177z5h5d9w19qfv7aiwxz71dzr5hbdb13kr1";
+        libName = "graphene";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib";
+            packageId = "glib";
+          }
+          {
+            name = "graphene-sys";
+            packageId = "graphene-sys";
+            rename = "ffi";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        features = {
+          "dox" = [ "ffi/dox" "glib/dox" ];
+        };
+      };
+      "graphene-sys" = rec {
+        crateName = "graphene-sys";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "1ybsw0b51dsslln1ign799zn374fcz1nzv4g190nb5cdka2a906g";
+        libName = "graphene_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "pkg-config";
+            packageId = "pkg-config";
+          }
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" ];
+        };
+      };
+      "gsk4" = rec {
+        crateName = "gsk4";
+        version = "0.6.3";
+        edition = "2021";
+        sha256 = "0g1srhahmhdl6rqbz98bawzf1gp6hf9m4y4rvbi1bb3wz92fy0bg";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "cairo-rs";
+            packageId = "cairo-rs";
+          }
+          {
+            name = "gdk4";
+            packageId = "gdk4";
+            rename = "gdk";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+            features = [ "v2_66" ];
+          }
+          {
+            name = "graphene-rs";
+            packageId = "graphene-rs";
+            rename = "graphene";
+          }
+          {
+            name = "gsk4-sys";
+            packageId = "gsk4-sys";
+            rename = "ffi";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "pango";
+            packageId = "pango";
+            features = [ "v1_46" ];
+          }
+        ];
+        features = {
+          "dox" = [ "ffi/dox" "gdk/dox" "graphene/dox" "glib/dox" "cairo-rs/dox" "pango/dox" ];
+          "v4_10" = [ "ffi/v4_10" "gdk/v4_10" "v4_6" ];
+          "v4_2" = [ "ffi/v4_2" "gdk/v4_2" ];
+          "v4_4" = [ "ffi/v4_4" "gdk/v4_4" "v4_2" ];
+          "v4_6" = [ "ffi/v4_6" "gdk/v4_6" "v4_4" ];
+        };
+      };
+      "gsk4-sys" = rec {
+        crateName = "gsk4-sys";
+        version = "0.6.3";
+        edition = "2021";
+        sha256 = "1c013zdd0yzcfmkz1gj28dbfz2zmypi8baimjk9264yg9pxq8yn0";
+        libName = "gsk4_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "cairo-sys-rs";
+            packageId = "cairo-sys-rs";
+            rename = "cairo";
+          }
+          {
+            name = "gdk4-sys";
+            packageId = "gdk4-sys";
+            rename = "gdk";
+          }
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "graphene-sys";
+            packageId = "graphene-sys";
+            rename = "graphene";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "pango-sys";
+            packageId = "pango-sys";
+            rename = "pango";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" "pango/dox" "cairo/dox" "graphene/dox" "gdk/dox" ];
+          "v4_10" = [ "v4_6" ];
+          "v4_4" = [ "v4_2" ];
+          "v4_6" = [ "v4_4" ];
+        };
+      };
+      "gtk4" = rec {
+        crateName = "gtk4";
+        version = "0.6.4";
+        edition = "2021";
+        sha256 = "1vbl68q3xcqqnxxvq83vc13dflfdpxc3kc9xa7szc1d6nljf2c0y";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "cairo-rs";
+            packageId = "cairo-rs";
+          }
+          {
+            name = "field-offset";
+            packageId = "field-offset";
+          }
+          {
+            name = "futures-channel";
+            packageId = "futures-channel";
+          }
+          {
+            name = "gdk-pixbuf";
+            packageId = "gdk-pixbuf";
+          }
+          {
+            name = "gdk4";
+            packageId = "gdk4";
+            rename = "gdk";
+          }
+          {
+            name = "gio";
+            packageId = "gio";
+            features = [ "v2_66" ];
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+            features = [ "v2_66" ];
+          }
+          {
+            name = "graphene-rs";
+            packageId = "graphene-rs";
+            rename = "graphene";
+          }
+          {
+            name = "gsk4";
+            packageId = "gsk4";
+            rename = "gsk";
+          }
+          {
+            name = "gtk4-macros";
+            packageId = "gtk4-macros";
+          }
+          {
+            name = "gtk4-sys";
+            packageId = "gtk4-sys";
+            rename = "ffi";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "pango";
+            packageId = "pango";
+            features = [ "v1_46" ];
+          }
+        ];
+        features = {
+          "blueprint" = [ "gtk4-macros/blueprint" ];
+          "dox" = [ "gdk/dox" "gsk/dox" "ffi/dox" "cairo-rs/dox" "gdk-pixbuf/dox" "gio/dox" "glib/dox" "graphene/dox" "pango/dox" ];
+          "gnome_42" = [ "v4_6" "cairo-rs/v1_16" "gdk-pixbuf/v2_42" "gio/v2_72" ];
+          "gnome_43" = [ "v4_8" "cairo-rs/v1_16" "gdk-pixbuf/v2_42" "gio/v2_74" ];
+          "gnome_44" = [ "v4_10" "cairo-rs/v1_16" "gdk-pixbuf/v2_42" "gio/v2_76" ];
+          "v4_10" = [ "ffi/v4_10" "v4_8" "gdk/v4_10" "gsk/v4_10" ];
+          "v4_2" = [ "ffi/v4_2" "gdk/v4_2" "gsk/v4_2" ];
+          "v4_4" = [ "ffi/v4_4" "v4_2" "gdk/v4_4" "gsk/v4_4" ];
+          "v4_6" = [ "ffi/v4_6" "v4_4" "gdk/v4_6" "gsk/v4_6" "pango/v1_50" ];
+          "v4_8" = [ "ffi/v4_8" "v4_6" "gdk/v4_8" ];
+          "xml_validation" = [ "gtk4-macros/xml_validation" ];
+        };
+      };
+      "gtk4-macros" = rec {
+        crateName = "gtk4-macros";
+        version = "0.6.5";
+        edition = "2021";
+        sha256 = "1w1f89qn5m5rlcfkzwapmyivy11n2cw1giijwh3gp2q9zfbsfhgh";
+        procMacro = true;
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "anyhow";
+            packageId = "anyhow";
+          }
+          {
+            name = "proc-macro-crate";
+            packageId = "proc-macro-crate";
+          }
+          {
+            name = "proc-macro-error";
+            packageId = "proc-macro-error";
+          }
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 1.0.109";
+            features = [ "full" ];
+          }
+        ];
+        features = {
+          "quick-xml" = [ "dep:quick-xml" ];
+          "xml_validation" = [ "quick-xml" ];
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "gtk4-sys" = rec {
+        crateName = "gtk4-sys";
+        version = "0.6.3";
+        edition = "2021";
+        sha256 = "0bz26ix7pl4d1m63zacaw1vw5021vm5r7wn7fsg02zmh0zvq70jz";
+        libName = "gtk4_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "cairo-sys-rs";
+            packageId = "cairo-sys-rs";
+            rename = "cairo";
+          }
+          {
+            name = "gdk-pixbuf-sys";
+            packageId = "gdk-pixbuf-sys";
+            rename = "gdk_pixbuf";
+          }
+          {
+            name = "gdk4-sys";
+            packageId = "gdk4-sys";
+            rename = "gdk";
+          }
+          {
+            name = "gio-sys";
+            packageId = "gio-sys";
+            rename = "gio";
+          }
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "graphene-sys";
+            packageId = "graphene-sys";
+            rename = "graphene";
+          }
+          {
+            name = "gsk4-sys";
+            packageId = "gsk4-sys";
+            rename = "gsk";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "pango-sys";
+            packageId = "pango-sys";
+            rename = "pango";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" "gio/dox" "gdk_pixbuf/dox" "pango/dox" "cairo/dox" "graphene/dox" "gdk/dox" "gsk/dox" ];
+          "v4_10" = [ "v4_8" ];
+          "v4_12" = [ "v4_10" ];
+          "v4_4" = [ "v4_2" ];
+          "v4_6" = [ "v4_4" ];
+          "v4_8" = [ "v4_6" ];
+        };
+      };
+      "hashbrown" = rec {
+        crateName = "hashbrown";
+        version = "0.12.3";
+        edition = "2021";
+        sha256 = "1268ka4750pyg2pbgsr43f0289l5zah4arir2k4igx5a8c6fg7la";
+        authors = [
+          "Amanieu d'Antras <amanieu@gmail.com>"
+        ];
+        features = {
+          "ahash" = [ "dep:ahash" ];
+          "ahash-compile-time-rng" = [ "ahash/compile-time-rng" ];
+          "alloc" = [ "dep:alloc" ];
+          "bumpalo" = [ "dep:bumpalo" ];
+          "compiler_builtins" = [ "dep:compiler_builtins" ];
+          "core" = [ "dep:core" ];
+          "default" = [ "ahash" "inline-more" ];
+          "rayon" = [ "dep:rayon" ];
+          "rustc-dep-of-std" = [ "nightly" "core" "compiler_builtins" "alloc" "rustc-internal-api" ];
+          "serde" = [ "dep:serde" ];
+        };
+        resolvedDefaultFeatures = [ "raw" ];
+      };
+      "heck" = rec {
+        crateName = "heck";
+        version = "0.4.1";
+        edition = "2018";
+        sha256 = "1a7mqsnycv5z4z5vnv1k34548jzmc0ajic7c1j8jsaspnhw5ql4m";
+        authors = [
+          "Without Boats <woboats@gmail.com>"
+        ];
+        features = {
+          "unicode" = [ "unicode-segmentation" ];
+          "unicode-segmentation" = [ "dep:unicode-segmentation" ];
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "indexmap" = rec {
+        crateName = "indexmap";
+        version = "1.9.3";
+        edition = "2021";
+        sha256 = "16dxmy7yvk51wvnih3a3im6fp5lmx0wx76i03n06wyak6cwhw1xx";
+        dependencies = [
+          {
+            name = "hashbrown";
+            packageId = "hashbrown";
+            usesDefaultFeatures = false;
+            features = [ "raw" ];
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "autocfg";
+            packageId = "autocfg";
+          }
+        ];
+        features = {
+          "arbitrary" = [ "dep:arbitrary" ];
+          "quickcheck" = [ "dep:quickcheck" ];
+          "rayon" = [ "dep:rayon" ];
+          "rustc-rayon" = [ "dep:rustc-rayon" ];
+          "serde" = [ "dep:serde" ];
+          "serde-1" = [ "serde" ];
+        };
+        resolvedDefaultFeatures = [ "std" ];
+      };
+      "libc" = rec {
+        crateName = "libc";
+        version = "0.2.141";
+        edition = "2015";
+        sha256 = "1dgl8sxpj94v2hwrcr5k2lcp8wk9s8a7l6vlk6z69fcv356sc11k";
+        authors = [
+          "The Rust Project Developers"
+        ];
+        features = {
+          "default" = [ "std" ];
+          "rustc-dep-of-std" = [ "align" "rustc-std-workspace-core" ];
+          "rustc-std-workspace-core" = [ "dep:rustc-std-workspace-core" ];
+          "use_std" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "memchr" = rec {
+        crateName = "memchr";
+        version = "2.5.0";
+        edition = "2018";
+        sha256 = "0vanfk5mzs1g1syqnj03q8n0syggnhn55dq535h2wxr7rwpfbzrd";
+        authors = [
+          "Andrew Gallant <jamslam@gmail.com>"
+          "bluss"
+        ];
+        features = {
+          "compiler_builtins" = [ "dep:compiler_builtins" ];
+          "core" = [ "dep:core" ];
+          "default" = [ "std" ];
+          "libc" = [ "dep:libc" ];
+          "rustc-dep-of-std" = [ "core" "compiler_builtins" ];
+          "use_std" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "memoffset" = rec {
+        crateName = "memoffset";
+        version = "0.8.0";
+        edition = "2015";
+        sha256 = "1qcdic88dhgw76pafgndpz04pig8il4advq978mxdxdwrydp276n";
+        authors = [
+          "Gilad Naaman <gilad.naaman@gmail.com>"
+        ];
+        buildDependencies = [
+          {
+            name = "autocfg";
+            packageId = "autocfg";
+          }
+        ];
+        features = {
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "once_cell" = rec {
+        crateName = "once_cell";
+        version = "1.17.1";
+        edition = "2021";
+        sha256 = "1lrsy9c5ikf2iwxr4iwgd3rlq9mg8alh0np1g8abnvp1k4151rdp";
+        authors = [
+          "Aleksey Kladov <aleksey.kladov@gmail.com>"
+        ];
+        features = {
+          "alloc" = [ "race" ];
+          "atomic-polyfill" = [ "critical-section" ];
+          "atomic_polyfill" = [ "dep:atomic_polyfill" ];
+          "critical-section" = [ "critical_section" "atomic_polyfill" ];
+          "critical_section" = [ "dep:critical_section" ];
+          "default" = [ "std" ];
+          "parking_lot" = [ "parking_lot_core" ];
+          "parking_lot_core" = [ "dep:parking_lot_core" ];
+          "std" = [ "alloc" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "default" "race" "std" ];
+      };
+      "pango" = rec {
+        crateName = "pango";
+        version = "0.17.4";
+        edition = "2021";
+        sha256 = "0dqdfzavw426ygqq2298fara29yygy79lddkmw4447l85aw81hjj";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "bitflags";
+            packageId = "bitflags";
+          }
+          {
+            name = "gio";
+            packageId = "gio";
+          }
+          {
+            name = "glib";
+            packageId = "glib";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "pango-sys";
+            packageId = "pango-sys";
+            rename = "ffi";
+          }
+        ];
+        features = {
+          "dox" = [ "ffi/dox" "glib/dox" "gio/dox" ];
+          "v1_42" = [ "ffi/v1_42" ];
+          "v1_44" = [ "v1_42" "ffi/v1_44" ];
+          "v1_46" = [ "v1_44" "ffi/v1_46" ];
+          "v1_48" = [ "v1_46" "ffi/v1_48" ];
+          "v1_50" = [ "v1_48" "ffi/v1_50" ];
+          "v1_52" = [ "v1_50" "ffi/v1_52" ];
+        };
+        resolvedDefaultFeatures = [ "v1_42" "v1_44" "v1_46" ];
+      };
+      "pango-sys" = rec {
+        crateName = "pango-sys";
+        version = "0.17.0";
+        edition = "2021";
+        sha256 = "1s2xc94xwm3b6wzqh5pj6jkjml1cs070plrl8z1bapjjnpqd14s2";
+        libName = "pango_sys";
+        authors = [
+          "The gtk-rs Project Developers"
+        ];
+        dependencies = [
+          {
+            name = "glib-sys";
+            packageId = "glib-sys";
+            rename = "glib";
+          }
+          {
+            name = "gobject-sys";
+            packageId = "gobject-sys";
+            rename = "gobject";
+          }
+          {
+            name = "libc";
+            packageId = "libc";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "system-deps";
+            packageId = "system-deps";
+          }
+        ];
+        features = {
+          "dox" = [ "glib/dox" "gobject/dox" ];
+          "v1_44" = [ "v1_42" ];
+          "v1_46" = [ "v1_44" ];
+          "v1_48" = [ "v1_46" ];
+          "v1_50" = [ "v1_48" ];
+          "v1_52" = [ "v1_50" ];
+        };
+        resolvedDefaultFeatures = [ "v1_42" "v1_44" "v1_46" ];
+      };
+      "pin-project-lite" = rec {
+        crateName = "pin-project-lite";
+        version = "0.2.9";
+        edition = "2018";
+        sha256 = "05n1z851l356hpgqadw4ar64mjanaxq1qlwqsf2k05ziq8xax9z0";
+
+      };
+      "pin-utils" = rec {
+        crateName = "pin-utils";
+        version = "0.1.0";
+        edition = "2018";
+        sha256 = "117ir7vslsl2z1a7qzhws4pd01cg2d3338c47swjyvqv2n60v1wb";
+        authors = [
+          "Josef Brandl <mail@josefbrandl.de>"
+        ];
+
+      };
+      "pkg-config" = rec {
+        crateName = "pkg-config";
+        version = "0.3.26";
+        edition = "2015";
+        sha256 = "0q2i61dhqvawc51zfzl3jich57w0cjgfa894hn6ings7ffgsbjba";
+        authors = [
+          "Alex Crichton <alex@alexcrichton.com>"
+        ];
+
+      };
+      "proc-macro-crate" = rec {
+        crateName = "proc-macro-crate";
+        version = "1.3.1";
+        edition = "2021";
+        sha256 = "069r1k56bvgk0f58dm5swlssfcp79im230affwk6d9ck20g04k3z";
+        authors = [
+          "Bastian Köcher <git@kchr.de>"
+        ];
+        dependencies = [
+          {
+            name = "once_cell";
+            packageId = "once_cell";
+          }
+          {
+            name = "toml_edit";
+            packageId = "toml_edit";
+          }
+        ];
+
+      };
+      "proc-macro-error" = rec {
+        crateName = "proc-macro-error";
+        version = "1.0.4";
+        edition = "2018";
+        sha256 = "1373bhxaf0pagd8zkyd03kkx6bchzf6g0dkwrwzsnal9z47lj9fs";
+        authors = [
+          "CreepySkeleton <creepy-skeleton@yandex.ru>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro-error-attr";
+            packageId = "proc-macro-error-attr";
+          }
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 1.0.109";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "version_check";
+            packageId = "version_check";
+          }
+        ];
+        features = {
+          "default" = [ "syn-error" ];
+          "syn" = [ "dep:syn" ];
+          "syn-error" = [ "syn" ];
+        };
+        resolvedDefaultFeatures = [ "default" "syn" "syn-error" ];
+      };
+      "proc-macro-error-attr" = rec {
+        crateName = "proc-macro-error-attr";
+        version = "1.0.4";
+        edition = "2018";
+        sha256 = "0sgq6m5jfmasmwwy8x4mjygx5l7kp8s4j60bv25ckv2j1qc41gm1";
+        procMacro = true;
+        authors = [
+          "CreepySkeleton <creepy-skeleton@yandex.ru>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "version_check";
+            packageId = "version_check";
+          }
+        ];
+
+      };
+      "proc-macro2" = rec {
+        crateName = "proc-macro2";
+        version = "1.0.56";
+        edition = "2018";
+        sha256 = "0ddlk2c7s9c0fhmf8cd0wikayicv9xrm9ck9vzgg9w86rnqbsqrb";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+          "Alex Crichton <alex@alexcrichton.com>"
+        ];
+        dependencies = [
+          {
+            name = "unicode-ident";
+            packageId = "unicode-ident";
+          }
+        ];
+        features = {
+          "default" = [ "proc-macro" ];
+        };
+        resolvedDefaultFeatures = [ "default" "proc-macro" ];
+      };
+      "quote" = rec {
+        crateName = "quote";
+        version = "1.0.26";
+        edition = "2018";
+        sha256 = "1z521piwggwzs0rj4wjx4ma6af1g6f1h5dkp382y5akqyx5sy924";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+            usesDefaultFeatures = false;
+          }
+        ];
+        features = {
+          "default" = [ "proc-macro" ];
+          "proc-macro" = [ "proc-macro2/proc-macro" ];
+        };
+        resolvedDefaultFeatures = [ "default" "proc-macro" ];
+      };
+      "rustc_version" = rec {
+        crateName = "rustc_version";
+        version = "0.4.0";
+        edition = "2018";
+        sha256 = "0rpk9rcdk405xhbmgclsh4pai0svn49x35aggl4nhbkd4a2zb85z";
+        authors = [
+          "Dirkjan Ochtman <dirkjan@ochtman.nl>"
+          "Marvin Löbel <loebel.marvin@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "semver";
+            packageId = "semver";
+          }
+        ];
+
+      };
+      "semver" = rec {
+        crateName = "semver";
+        version = "1.0.17";
+        edition = "2018";
+        sha256 = "1vf03d99sikkradjj33q1l9h4fqgd1h7darjypic6pnh4qrkdgdy";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        features = {
+          "default" = [ "std" ];
+          "serde" = [ "dep:serde" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "serde" = rec {
+        crateName = "serde";
+        version = "1.0.159";
+        edition = "2015";
+        sha256 = "0r9hd539dzp9b7h13w9akwh33pv8f3bvk449ym0yrbix7hsfh11w";
+        authors = [
+          "Erick Tryzelaar <erick.tryzelaar@gmail.com>"
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        features = {
+          "default" = [ "std" ];
+          "derive" = [ "serde_derive" ];
+          "serde_derive" = [ "dep:serde_derive" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "serde_spanned" = rec {
+        crateName = "serde_spanned";
+        version = "0.6.1";
+        edition = "2021";
+        sha256 = "1x7wqhqay4bgkaq8dmvb9z01mk2z0j0g9jl5nb9ynv3aanpqrz8f";
+        dependencies = [
+          {
+            name = "serde";
+            packageId = "serde";
+            optional = true;
+          }
+        ];
+        features = {
+          "serde" = [ "dep:serde" ];
+        };
+        resolvedDefaultFeatures = [ "serde" ];
+      };
+      "slab" = rec {
+        crateName = "slab";
+        version = "0.4.8";
+        edition = "2018";
+        sha256 = "0bgwxig8gkqp6gz8rvrpdj6qwa10karnsxwx7wsj5ay8kcf3aa35";
+        authors = [
+          "Carl Lerche <me@carllerche.com>"
+        ];
+        buildDependencies = [
+          {
+            name = "autocfg";
+            packageId = "autocfg";
+          }
+        ];
+        features = {
+          "default" = [ "std" ];
+          "serde" = [ "dep:serde" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "smallvec" = rec {
+        crateName = "smallvec";
+        version = "1.10.0";
+        edition = "2018";
+        sha256 = "1q2k15fzxgwjpcdv3f323w24rbbfyv711ayz85ila12lg7zbw1x5";
+        authors = [
+          "The Servo Project Developers"
+        ];
+        features = {
+          "arbitrary" = [ "dep:arbitrary" ];
+          "const_new" = [ "const_generics" ];
+          "serde" = [ "dep:serde" ];
+        };
+      };
+      "syn 1.0.109" = rec {
+        crateName = "syn";
+        version = "1.0.109";
+        edition = "2018";
+        sha256 = "0ds2if4600bd59wsv7jjgfkayfzy3hnazs394kz6zdkmna8l3dkj";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "unicode-ident";
+            packageId = "unicode-ident";
+          }
+        ];
+        features = {
+          "default" = [ "derive" "parsing" "printing" "clone-impls" "proc-macro" ];
+          "printing" = [ "quote" ];
+          "proc-macro" = [ "proc-macro2/proc-macro" "quote/proc-macro" ];
+          "quote" = [ "dep:quote" ];
+          "test" = [ "syn-test-suite/all-features" ];
+        };
+        resolvedDefaultFeatures = [ "clone-impls" "default" "derive" "full" "parsing" "printing" "proc-macro" "quote" ];
+      };
+      "syn 2.0.13" = rec {
+        crateName = "syn";
+        version = "2.0.13";
+        edition = "2021";
+        sha256 = "1v68ggs5q0addc3z49kqzqfac5xcdnppdl7b6vww2ni8qmbs97ac";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "unicode-ident";
+            packageId = "unicode-ident";
+          }
+        ];
+        features = {
+          "default" = [ "derive" "parsing" "printing" "clone-impls" "proc-macro" ];
+          "printing" = [ "quote" ];
+          "proc-macro" = [ "proc-macro2/proc-macro" "quote/proc-macro" ];
+          "quote" = [ "dep:quote" ];
+          "test" = [ "syn-test-suite/all-features" ];
+        };
+        resolvedDefaultFeatures = [ "clone-impls" "default" "derive" "full" "parsing" "printing" "proc-macro" "quote" ];
+      };
+      "system-deps" = rec {
+        crateName = "system-deps";
+        version = "6.0.4";
+        edition = "2018";
+        sha256 = "0pxh43rd2vr3r3g1kczjkk740ch2s0xbhsx364wny9gng8achpsm";
+        authors = [
+          "Guillaume Desmottes <guillaume.desmottes@collabora.com>"
+          "Josh Triplett <josh@joshtriplett.org>"
+        ];
+        dependencies = [
+          {
+            name = "cfg-expr";
+            packageId = "cfg-expr";
+          }
+          {
+            name = "heck";
+            packageId = "heck";
+          }
+          {
+            name = "pkg-config";
+            packageId = "pkg-config";
+          }
+          {
+            name = "toml";
+            packageId = "toml";
+            usesDefaultFeatures = false;
+            features = [ "parse" ];
+          }
+          {
+            name = "version-compare";
+            packageId = "version-compare";
+          }
+        ];
+
+      };
+      "thiserror" = rec {
+        crateName = "thiserror";
+        version = "1.0.40";
+        edition = "2018";
+        sha256 = "1b7bdhriasdsr99y39d50jz995xaz9sw3hsbb6z9kp6q9cqrm34p";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "thiserror-impl";
+            packageId = "thiserror-impl";
+          }
+        ];
+
+      };
+      "thiserror-impl" = rec {
+        crateName = "thiserror-impl";
+        version = "1.0.40";
+        edition = "2018";
+        sha256 = "17sn41kyimc6s983aypkk6a45pcyrkbkvrw6rp407n5hqm16ligr";
+        procMacro = true;
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 2.0.13";
+          }
+        ];
+
+      };
+      "toml" = rec {
+        crateName = "toml";
+        version = "0.5.11";
+        edition = "2018";
+        sha256 = "0d2266nx8b3n22c7k24x4428z6di8n83a9n466jm7a2hipfz1xzl";
+        authors = [
+          "Alex Crichton <alex@alexcrichton.com>"
+        ];
+        dependencies = [
+          {
+            name = "serde";
+            packageId = "serde";
+          }
+        ];
+        features = {
+          "indexmap" = [ "dep:indexmap" ];
+          "preserve_order" = [ "indexmap" ];
+        };
+      };
+      "toml_datetime" = rec {
+        crateName = "toml_datetime";
+        version = "0.6.1";
+        edition = "2021";
+        sha256 = "08lndxs1bval859mlas0k4f032s26c9k6pzd589m02z1vqpfvf1s";
+        authors = [
+          "Alex Crichton <alex@alexcrichton.com>"
+        ];
+        dependencies = [
+          {
+            name = "serde";
+            packageId = "serde";
+            optional = true;
+          }
+        ];
+        features = {
+          "serde" = [ "dep:serde" ];
+        };
+        resolvedDefaultFeatures = [ "serde" ];
+      };
+      "toml_edit" = rec {
+        crateName = "toml_edit";
+        version = "0.19.8";
+        edition = "2021";
+        sha256 = "04ywrxn4c7q4ph1vir310nsgvcd3cdqp1ri7d52jb0cyc3411513";
+        authors = [
+          "Andronik Ordian <write@reusable.software>"
+          "Ed Page <eopage@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "indexmap";
+            packageId = "indexmap";
+            features = [ "std" ];
+          }
+          {
+            name = "serde";
+            packageId = "serde";
+            optional = true;
+          }
+          {
+            name = "serde_spanned";
+            packageId = "serde_spanned";
+            optional = true;
+            features = [ "serde" ];
+          }
+          {
+            name = "toml_datetime";
+            packageId = "toml_datetime";
+          }
+          {
+            name = "winnow";
+            packageId = "winnow";
+          }
+        ];
+        features = {
+          "perf" = [ "dep:kstring" ];
+          "serde" = [ "dep:serde" "toml_datetime/serde" "dep:serde_spanned" ];
+        };
+        resolvedDefaultFeatures = [ "default" "serde" ];
+      };
+      "unicode-ident" = rec {
+        crateName = "unicode-ident";
+        version = "1.0.8";
+        edition = "2018";
+        sha256 = "1x4v4v95fv9gn5zbpm23sa9awjvmclap1wh1lmikmw9rna3llip5";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+
+      };
+      "version-compare" = rec {
+        crateName = "version-compare";
+        version = "0.1.1";
+        edition = "2018";
+        sha256 = "0acg4pmjdbmclg0m7yhijn979mdy66z3k8qrcnvn634f1gy456jp";
+        authors = [
+          "Tim Visee <3a4fb3964f@sinenomine.email>"
+        ];
+
+      };
+      "version_check" = rec {
+        crateName = "version_check";
+        version = "0.9.4";
+        edition = "2015";
+        sha256 = "0gs8grwdlgh0xq660d7wr80x14vxbizmd8dbp29p2pdncx8lp1s9";
+        authors = [
+          "Sergio Benitez <sb@sergio.bz>"
+        ];
+
+      };
+      "winapi" = rec {
+        crateName = "winapi";
+        version = "0.3.9";
+        edition = "2015";
+        sha256 = "06gl025x418lchw1wxj64ycr7gha83m44cjr5sarhynd9xkrm0sw";
+        authors = [
+          "Peter Atashian <retep998@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "winapi-i686-pc-windows-gnu";
+            packageId = "winapi-i686-pc-windows-gnu";
+            target = { target, features }: (stdenv.hostPlatform.config == "i686-pc-windows-gnu");
+          }
+          {
+            name = "winapi-x86_64-pc-windows-gnu";
+            packageId = "winapi-x86_64-pc-windows-gnu";
+            target = { target, features }: (stdenv.hostPlatform.config == "x86_64-pc-windows-gnu");
+          }
+        ];
+        features = {
+          "debug" = [ "impl-debug" ];
+        };
+        resolvedDefaultFeatures = [ "winsock2" "ws2def" ];
+      };
+      "winapi-i686-pc-windows-gnu" = rec {
+        crateName = "winapi-i686-pc-windows-gnu";
+        version = "0.4.0";
+        edition = "2015";
+        sha256 = "1dmpa6mvcvzz16zg6d5vrfy4bxgg541wxrcip7cnshi06v38ffxc";
+        authors = [
+          "Peter Atashian <retep998@gmail.com>"
+        ];
+
+      };
+      "winapi-x86_64-pc-windows-gnu" = rec {
+        crateName = "winapi-x86_64-pc-windows-gnu";
+        version = "0.4.0";
+        edition = "2015";
+        sha256 = "0gqq64czqb64kskjryj8isp62m2sgvx25yyj3kpc2myh85w24bki";
+        authors = [
+          "Peter Atashian <retep998@gmail.com>"
+        ];
+
+      };
+      "winnow" = rec {
+        crateName = "winnow";
+        version = "0.4.1";
+        edition = "2021";
+        sha256 = "0a2b9f0n6fpn2a88jfbp1kdjj6xrhvf8arnny67qsjb6djrp12df";
+        dependencies = [
+          {
+            name = "memchr";
+            packageId = "memchr";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+        ];
+        features = {
+          "debug" = [ "dep:anstyle" "dep:is-terminal" "dep:terminal_size" "dep:concolor" ];
+          "default" = [ "std" ];
+          "simd" = [ "dep:memchr" ];
+          "std" = [ "alloc" "memchr?/std" ];
+          "unstable-doc" = [ "alloc" "std" "simd" ];
+        };
+        resolvedDefaultFeatures = [ "alloc" "default" "std" ];
+      };
+    };
+
+    #
+# crate2nix/default.nix (excerpt start)
+#
+
+  /* Target (platform) data for conditional dependencies.
+    This corresponds roughly to what buildRustCrate is setting.
+  */
+  defaultTarget = {
+    unix = true;
+    windows = false;
+    fuchsia = true;
+    test = false;
+
+    # This doesn't appear to be officially documented anywhere yet.
+    # See https://github.com/rust-lang-nursery/rust-forge/issues/101.
+    os =
+      if stdenv.hostPlatform.isDarwin
+      then "macos"
+      else stdenv.hostPlatform.parsed.kernel.name;
+    arch = stdenv.hostPlatform.parsed.cpu.name;
+    family = "unix";
+    env = "gnu";
+    endian =
+      if stdenv.hostPlatform.parsed.cpu.significantByte.name == "littleEndian"
+      then "little" else "big";
+    pointer_width = toString stdenv.hostPlatform.parsed.cpu.bits;
+    vendor = stdenv.hostPlatform.parsed.vendor.name;
+    debug_assertions = false;
+  };
+
+  /* Filters common temp files and build files. */
+  # TODO(pkolloch): Substitute with gitignore filter
+  sourceFilter = name: type:
+    let
+      baseName = builtins.baseNameOf (builtins.toString name);
+    in
+      ! (
+        # Filter out git
+        baseName == ".gitignore"
+        || (type == "directory" && baseName == ".git")
+
+        # Filter out build results
+        || (
+          type == "directory" && (
+            baseName == "target"
+            || baseName == "_site"
+            || baseName == ".sass-cache"
+            || baseName == ".jekyll-metadata"
+            || baseName == "build-artifacts"
+          )
+        )
+
+        # Filter out nix-build result symlinks
+        || (
+          type == "symlink" && lib.hasPrefix "result" baseName
+        )
+
+        # Filter out IDE config
+        || (
+          type == "directory" && (
+            baseName == ".idea" || baseName == ".vscode"
+          )
+        ) || lib.hasSuffix ".iml" baseName
+
+        # Filter out nix build files
+        || baseName == "Cargo.nix"
+
+        # Filter out editor backup / swap files.
+        || lib.hasSuffix "~" baseName
+        || builtins.match "^\\.sw[a-z]$$" baseName != null
+        || builtins.match "^\\..*\\.sw[a-z]$$" baseName != null
+        || lib.hasSuffix ".tmp" baseName
+        || lib.hasSuffix ".bak" baseName
+        || baseName == "tests.nix"
+      );
+
+  /* Returns a crate which depends on successful test execution
+    of crate given as the second argument.
+
+    testCrateFlags: list of flags to pass to the test exectuable
+    testInputs: list of packages that should be available during test execution
+  */
+  crateWithTest = { crate, testCrate, testCrateFlags, testInputs, testPreRun, testPostRun }:
+    assert builtins.typeOf testCrateFlags == "list";
+    assert builtins.typeOf testInputs == "list";
+    assert builtins.typeOf testPreRun == "string";
+    assert builtins.typeOf testPostRun == "string";
+    let
+      # override the `crate` so that it will build and execute tests instead of
+      # building the actual lib and bin targets We just have to pass `--test`
+      # to rustc and it will do the right thing.  We execute the tests and copy
+      # their log and the test executables to $out for later inspection.
+      test =
+        let
+          drv = testCrate.override
+            (
+              _: {
+                buildTests = true;
+              }
+            );
+          # If the user hasn't set any pre/post commands, we don't want to
+          # insert empty lines. This means that any existing users of crate2nix
+          # don't get a spurious rebuild unless they set these explicitly.
+          testCommand = pkgs.lib.concatStringsSep "\n"
+            (pkgs.lib.filter (s: s != "") [
+              testPreRun
+              "$f $testCrateFlags 2>&1 | tee -a $out"
+              testPostRun
+            ]);
+        in
+        pkgs.runCommand "run-tests-${testCrate.name}"
+          {
+            inherit testCrateFlags;
+            buildInputs = testInputs;
+          } ''
+          set -ex
+
+          export RUST_BACKTRACE=1
+
+          # recreate a file hierarchy as when running tests with cargo
+
+          # the source for test data
+          ${pkgs.xorg.lndir}/bin/lndir ${crate.src}
+
+          # build outputs
+          testRoot=target/debug
+          mkdir -p $testRoot
+
+          # executables of the crate
+          # we copy to prevent std::env::current_exe() to resolve to a store location
+          for i in ${crate}/bin/*; do
+            cp "$i" "$testRoot"
+          done
+          chmod +w -R .
+
+          # test harness executables are suffixed with a hash, like cargo does
+          # this allows to prevent name collision with the main
+          # executables of the crate
+          hash=$(basename $out)
+          for file in ${drv}/tests/*; do
+            f=$testRoot/$(basename $file)-$hash
+            cp $file $f
+            ${testCommand}
+          done
+        '';
+    in
+    pkgs.runCommand "${crate.name}-linked"
+      {
+        inherit (crate) outputs crateName;
+        passthru = (crate.passthru or { }) // {
+          inherit test;
+        };
+      } ''
+      echo tested by ${test}
+      ${lib.concatMapStringsSep "\n" (output: "ln -s ${crate.${output}} ${"$"}${output}") crate.outputs}
+    '';
+
+  /* A restricted overridable version of builtRustCratesWithFeatures. */
+  buildRustCrateWithFeatures =
+    { packageId
+    , features ? rootFeatures
+    , crateOverrides ? defaultCrateOverrides
+    , buildRustCrateForPkgsFunc ? null
+    , runTests ? false
+    , testCrateFlags ? [ ]
+    , testInputs ? [ ]
+      # Any command to run immediatelly before a test is executed.
+    , testPreRun ? ""
+      # Any command run immediatelly after a test is executed.
+    , testPostRun ? ""
+    }:
+    lib.makeOverridable
+      (
+        { features
+        , crateOverrides
+        , runTests
+        , testCrateFlags
+        , testInputs
+        , testPreRun
+        , testPostRun
+        }:
+        let
+          buildRustCrateForPkgsFuncOverriden =
+            if buildRustCrateForPkgsFunc != null
+            then buildRustCrateForPkgsFunc
+            else
+              (
+                if crateOverrides == pkgs.defaultCrateOverrides
+                then buildRustCrateForPkgs
+                else
+                  pkgs: (buildRustCrateForPkgs pkgs).override {
+                    defaultCrateOverrides = crateOverrides;
+                  }
+              );
+          builtRustCrates = builtRustCratesWithFeatures {
+            inherit packageId features;
+            buildRustCrateForPkgsFunc = buildRustCrateForPkgsFuncOverriden;
+            runTests = false;
+          };
+          builtTestRustCrates = builtRustCratesWithFeatures {
+            inherit packageId features;
+            buildRustCrateForPkgsFunc = buildRustCrateForPkgsFuncOverriden;
+            runTests = true;
+          };
+          drv = builtRustCrates.crates.${packageId};
+          testDrv = builtTestRustCrates.crates.${packageId};
+          derivation =
+            if runTests then
+              crateWithTest
+                {
+                  crate = drv;
+                  testCrate = testDrv;
+                  inherit testCrateFlags testInputs testPreRun testPostRun;
+                }
+            else drv;
+        in
+        derivation
+      )
+      { inherit features crateOverrides runTests testCrateFlags testInputs testPreRun testPostRun; };
+
+  /* Returns an attr set with packageId mapped to the result of buildRustCrateForPkgsFunc
+    for the corresponding crate.
+  */
+  builtRustCratesWithFeatures =
+    { packageId
+    , features
+    , crateConfigs ? crates
+    , buildRustCrateForPkgsFunc
+    , runTests
+    , target ? defaultTarget
+    } @ args:
+      assert (builtins.isAttrs crateConfigs);
+      assert (builtins.isString packageId);
+      assert (builtins.isList features);
+      assert (builtins.isAttrs target);
+      assert (builtins.isBool runTests);
+      let
+        rootPackageId = packageId;
+        mergedFeatures = mergePackageFeatures
+          (
+            args // {
+              inherit rootPackageId;
+              target = target // { test = runTests; };
+            }
+          );
+        # Memoize built packages so that reappearing packages are only built once.
+        builtByPackageIdByPkgs = mkBuiltByPackageIdByPkgs pkgs;
+        mkBuiltByPackageIdByPkgs = pkgs:
+          let
+            self = {
+              crates = lib.mapAttrs (packageId: value: buildByPackageIdForPkgsImpl self pkgs packageId) crateConfigs;
+              build = mkBuiltByPackageIdByPkgs pkgs.buildPackages;
+            };
+          in
+          self;
+        buildByPackageIdForPkgsImpl = self: pkgs: packageId:
+          let
+            features = mergedFeatures."${packageId}" or [ ];
+            crateConfig' = crateConfigs."${packageId}";
+            crateConfig =
+              builtins.removeAttrs crateConfig' [ "resolvedDefaultFeatures" "devDependencies" ];
+            devDependencies =
+              lib.optionals
+                (runTests && packageId == rootPackageId)
+                (crateConfig'.devDependencies or [ ]);
+            dependencies =
+              dependencyDerivations {
+                inherit features target;
+                buildByPackageId = depPackageId:
+                  # proc_macro crates must be compiled for the build architecture
+                  if crateConfigs.${depPackageId}.procMacro or false
+                  then self.build.crates.${depPackageId}
+                  else self.crates.${depPackageId};
+                dependencies =
+                  (crateConfig.dependencies or [ ])
+                  ++ devDependencies;
+              };
+            buildDependencies =
+              dependencyDerivations {
+                inherit features target;
+                buildByPackageId = depPackageId:
+                  self.build.crates.${depPackageId};
+                dependencies = crateConfig.buildDependencies or [ ];
+              };
+            filterEnabledDependenciesForThis = dependencies: filterEnabledDependencies {
+              inherit dependencies features target;
+            };
+            dependenciesWithRenames =
+              lib.filter (d: d ? "rename")
+                (
+                  filterEnabledDependenciesForThis
+                    (
+                      (crateConfig.buildDependencies or [ ])
+                      ++ (crateConfig.dependencies or [ ])
+                      ++ devDependencies
+                    )
+                );
+            # Crate renames have the form:
+            #
+            # {
+            #    crate_name = [
+            #       { version = "1.2.3"; rename = "crate_name01"; }
+            #    ];
+            #    # ...
+            # }
+            crateRenames =
+              let
+                grouped =
+                  lib.groupBy
+                    (dependency: dependency.name)
+                    dependenciesWithRenames;
+                versionAndRename = dep:
+                  let
+                    package = crateConfigs."${dep.packageId}";
+                  in
+                  { inherit (dep) rename; version = package.version; };
+              in
+              lib.mapAttrs (name: choices: builtins.map versionAndRename choices) grouped;
+          in
+          buildRustCrateForPkgsFunc pkgs
+            (
+              crateConfig // {
+                src = crateConfig.src or (
+                  pkgs.fetchurl rec {
+                    name = "${crateConfig.crateName}-${crateConfig.version}.tar.gz";
+                    # https://www.pietroalbini.org/blog/downloading-crates-io/
+                    # Not rate-limited, CDN URL.
+                    url = "https://static.crates.io/crates/${crateConfig.crateName}/${crateConfig.crateName}-${crateConfig.version}.crate";
+                    sha256 =
+                      assert (lib.assertMsg (crateConfig ? sha256) "Missing sha256 for ${name}");
+                      crateConfig.sha256;
+                  }
+                );
+                extraRustcOpts = lib.lists.optional (targetFeatures != [ ]) "-C target-feature=${lib.concatMapStringsSep "," (x: "+${x}") targetFeatures}";
+                inherit features dependencies buildDependencies crateRenames release;
+              }
+            );
+      in
+      builtByPackageIdByPkgs;
+
+  /* Returns the actual derivations for the given dependencies. */
+  dependencyDerivations =
+    { buildByPackageId
+    , features
+    , dependencies
+    , target
+    }:
+      assert (builtins.isList features);
+      assert (builtins.isList dependencies);
+      assert (builtins.isAttrs target);
+      let
+        enabledDependencies = filterEnabledDependencies {
+          inherit dependencies features target;
+        };
+        depDerivation = dependency: buildByPackageId dependency.packageId;
+      in
+      map depDerivation enabledDependencies;
+
+  /* Returns a sanitized version of val with all values substituted that cannot
+    be serialized as JSON.
+  */
+  sanitizeForJson = val:
+    if builtins.isAttrs val
+    then lib.mapAttrs (n: v: sanitizeForJson v) val
+    else if builtins.isList val
+    then builtins.map sanitizeForJson val
+    else if builtins.isFunction val
+    then "function"
+    else val;
+
+  /* Returns various tools to debug a crate. */
+  debugCrate = { packageId, target ? defaultTarget }:
+    assert (builtins.isString packageId);
+    let
+      debug = rec {
+        # The built tree as passed to buildRustCrate.
+        buildTree = buildRustCrateWithFeatures {
+          buildRustCrateForPkgsFunc = _: lib.id;
+          inherit packageId;
+        };
+        sanitizedBuildTree = sanitizeForJson buildTree;
+        dependencyTree = sanitizeForJson
+          (
+            buildRustCrateWithFeatures {
+              buildRustCrateForPkgsFunc = _: crate: {
+                "01_crateName" = crate.crateName or false;
+                "02_features" = crate.features or [ ];
+                "03_dependencies" = crate.dependencies or [ ];
+              };
+              inherit packageId;
+            }
+          );
+        mergedPackageFeatures = mergePackageFeatures {
+          features = rootFeatures;
+          inherit packageId target;
+        };
+        diffedDefaultPackageFeatures = diffDefaultPackageFeatures {
+          inherit packageId target;
+        };
+      };
+    in
+    { internal = debug; };
+
+  /* Returns differences between cargo default features and crate2nix default
+    features.
+
+    This is useful for verifying the feature resolution in crate2nix.
+  */
+  diffDefaultPackageFeatures =
+    { crateConfigs ? crates
+    , packageId
+    , target
+    }:
+      assert (builtins.isAttrs crateConfigs);
+      let
+        prefixValues = prefix: lib.mapAttrs (n: v: { "${prefix}" = v; });
+        mergedFeatures =
+          prefixValues
+            "crate2nix"
+            (mergePackageFeatures { inherit crateConfigs packageId target; features = [ "default" ]; });
+        configs = prefixValues "cargo" crateConfigs;
+        combined = lib.foldAttrs (a: b: a // b) { } [ mergedFeatures configs ];
+        onlyInCargo =
+          builtins.attrNames
+            (lib.filterAttrs (n: v: !(v ? "crate2nix") && (v ? "cargo")) combined);
+        onlyInCrate2Nix =
+          builtins.attrNames
+            (lib.filterAttrs (n: v: (v ? "crate2nix") && !(v ? "cargo")) combined);
+        differentFeatures = lib.filterAttrs
+          (
+            n: v:
+              (v ? "crate2nix")
+              && (v ? "cargo")
+              && (v.crate2nix.features or [ ]) != (v."cargo".resolved_default_features or [ ])
+          )
+          combined;
+      in
+      builtins.toJSON {
+        inherit onlyInCargo onlyInCrate2Nix differentFeatures;
+      };
+
+  /* Returns an attrset mapping packageId to the list of enabled features.
+
+    If multiple paths to a dependency enable different features, the
+    corresponding feature sets are merged. Features in rust are additive.
+  */
+  mergePackageFeatures =
+    { crateConfigs ? crates
+    , packageId
+    , rootPackageId ? packageId
+    , features ? rootFeatures
+    , dependencyPath ? [ crates.${packageId}.crateName ]
+    , featuresByPackageId ? { }
+    , target
+      # Adds devDependencies to the crate with rootPackageId.
+    , runTests ? false
+    , ...
+    } @ args:
+      assert (builtins.isAttrs crateConfigs);
+      assert (builtins.isString packageId);
+      assert (builtins.isString rootPackageId);
+      assert (builtins.isList features);
+      assert (builtins.isList dependencyPath);
+      assert (builtins.isAttrs featuresByPackageId);
+      assert (builtins.isAttrs target);
+      assert (builtins.isBool runTests);
+      let
+        crateConfig = crateConfigs."${packageId}" or (builtins.throw "Package not found: ${packageId}");
+        expandedFeatures = expandFeatures (crateConfig.features or { }) features;
+        enabledFeatures = enableFeatures (crateConfig.dependencies or [ ]) expandedFeatures;
+        depWithResolvedFeatures = dependency:
+          let
+            packageId = dependency.packageId;
+            features = dependencyFeatures enabledFeatures dependency;
+          in
+          { inherit packageId features; };
+        resolveDependencies = cache: path: dependencies:
+          assert (builtins.isAttrs cache);
+          assert (builtins.isList dependencies);
+          let
+            enabledDependencies = filterEnabledDependencies {
+              inherit dependencies target;
+              features = enabledFeatures;
+            };
+            directDependencies = map depWithResolvedFeatures enabledDependencies;
+            foldOverCache = op: lib.foldl op cache directDependencies;
+          in
+          foldOverCache
+            (
+              cache: { packageId, features }:
+                let
+                  cacheFeatures = cache.${packageId} or [ ];
+                  combinedFeatures = sortedUnique (cacheFeatures ++ features);
+                in
+                if cache ? ${packageId} && cache.${packageId} == combinedFeatures
+                then cache
+                else
+                  mergePackageFeatures {
+                    features = combinedFeatures;
+                    featuresByPackageId = cache;
+                    inherit crateConfigs packageId target runTests rootPackageId;
+                  }
+            );
+        cacheWithSelf =
+          let
+            cacheFeatures = featuresByPackageId.${packageId} or [ ];
+            combinedFeatures = sortedUnique (cacheFeatures ++ enabledFeatures);
+          in
+          featuresByPackageId // {
+            "${packageId}" = combinedFeatures;
+          };
+        cacheWithDependencies =
+          resolveDependencies cacheWithSelf "dep"
+            (
+              crateConfig.dependencies or [ ]
+              ++ lib.optionals
+                (runTests && packageId == rootPackageId)
+                (crateConfig.devDependencies or [ ])
+            );
+        cacheWithAll =
+          resolveDependencies
+            cacheWithDependencies "build"
+            (crateConfig.buildDependencies or [ ]);
+      in
+      cacheWithAll;
+
+  /* Returns the enabled dependencies given the enabled features. */
+  filterEnabledDependencies = { dependencies, features, target }:
+    assert (builtins.isList dependencies);
+    assert (builtins.isList features);
+    assert (builtins.isAttrs target);
+
+    lib.filter
+      (
+        dep:
+        let
+          targetFunc = dep.target or (features: true);
+        in
+        targetFunc { inherit features target; }
+        && (
+          !(dep.optional or false)
+          || builtins.any (doesFeatureEnableDependency dep) features
+        )
+      )
+      dependencies;
+
+  /* Returns whether the given feature should enable the given dependency. */
+  doesFeatureEnableDependency = { name, rename ? null, ... }: feature:
+    let
+      prefix = "${name}/";
+      len = builtins.stringLength prefix;
+      startsWithPrefix = builtins.substring 0 len feature == prefix;
+    in
+    (rename == null && feature == name)
+    || (rename != null && rename == feature)
+    || startsWithPrefix;
+
+  /* Returns the expanded features for the given inputFeatures by applying the
+    rules in featureMap.
+
+    featureMap is an attribute set which maps feature names to lists of further
+    feature names to enable in case this feature is selected.
+  */
+  expandFeatures = featureMap: inputFeatures:
+    assert (builtins.isAttrs featureMap);
+    assert (builtins.isList inputFeatures);
+    let
+      expandFeature = feature:
+        assert (builtins.isString feature);
+        [ feature ] ++ (expandFeatures featureMap (featureMap."${feature}" or [ ]));
+      outFeatures = lib.concatMap expandFeature inputFeatures;
+    in
+    sortedUnique outFeatures;
+
+  /* This function adds optional dependencies as features if they are enabled
+    indirectly by dependency features. This function mimics Cargo's behavior
+    described in a note at:
+    https://doc.rust-lang.org/nightly/cargo/reference/features.html#dependency-features
+  */
+  enableFeatures = dependencies: features:
+    assert (builtins.isList features);
+    assert (builtins.isList dependencies);
+    let
+      additionalFeatures = lib.concatMap
+        (
+          dependency:
+            assert (builtins.isAttrs dependency);
+            let
+              enabled = builtins.any (doesFeatureEnableDependency dependency) features;
+            in
+            if (dependency.optional or false) && enabled then [ dependency.name ] else [ ]
+        )
+        dependencies;
+    in
+    sortedUnique (features ++ additionalFeatures);
+
+  /*
+    Returns the actual features for the given dependency.
+
+    features: The features of the crate that refers this dependency.
+  */
+  dependencyFeatures = features: dependency:
+    assert (builtins.isList features);
+    assert (builtins.isAttrs dependency);
+    let
+      defaultOrNil =
+        if dependency.usesDefaultFeatures or true
+        then [ "default" ]
+        else [ ];
+      explicitFeatures = dependency.features or [ ];
+      additionalDependencyFeatures =
+        let
+          dependencyPrefix = (dependency.rename or dependency.name) + "/";
+          dependencyFeatures =
+            builtins.filter (f: lib.hasPrefix dependencyPrefix f) features;
+        in
+        builtins.map (lib.removePrefix dependencyPrefix) dependencyFeatures;
+    in
+    defaultOrNil ++ explicitFeatures ++ additionalDependencyFeatures;
+
+  /* Sorts and removes duplicates from a list of strings. */
+  sortedUnique = features:
+    assert (builtins.isList features);
+    assert (builtins.all builtins.isString features);
+    let
+      outFeaturesSet = lib.foldl (set: feature: set // { "${feature}" = 1; }) { } features;
+      outFeaturesUnique = builtins.attrNames outFeaturesSet;
+    in
+    builtins.sort (a: b: a < b) outFeaturesUnique;
+
+  deprecationWarning = message: value:
+    if strictDeprecation
+    then builtins.throw "strictDeprecation enabled, aborting: ${message}"
+    else builtins.trace message value;
+
+  #
+  # crate2nix/default.nix (excerpt end)
+  #
+  };
+}
+
diff --git a/flake.nix b/flake.nix
index a5ff1b9..d44619f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -78,6 +78,11 @@
               rootFeatures = [ "screenplay" ];
               release = true;
             }).rootCrate.build;
+            cyberpunk-splash = (import ./cyberpunk-splash/Cargo.nix {
+              inherit pkgs;
+              buildRustCrateForPkgs = customBuildInfo;
+              release = true;
+            }).rootCrate.build;
           };
     };
 }