feat(tvix/tools/crunch-v2): add CLI args r/7453

Use clap derive to make the input and output files configurable, as well
as the chunk size parameters.

Change-Id: I02b29126f3bd2c13ba2c6e7e0aa4ff048ff803ed
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10691
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: edef <edef@edef.eu>

6 files changed, 884 insertions, 33 deletions

diff --git a/tvix/tools/crunch-v2/Cargo.lock b/tvix/tools/crunch-v2/Cargo.lock
index 617b4f21cd..cff5509d0b 100644
--- a/tvix/tools/crunch-v2/Cargo.lock
+++ b/tvix/tools/crunch-v2/Cargo.lock
@@ -76,6 +76,54 @@ dependencies = [
 ]
 
 [[package]]
+name = "anstream"
+version = "0.6.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e2e1ebcb11de5c03c67de28a7df593d32191b44939c482e97702baaaa6ab6a5"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7079075b41f533b8c61d2a4d073c4676e1f8b249ff94a393b0595db304e0dd87"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c75ac65da39e5fe5ab759307499ddad880d724eed2f6ce5b5e8a26f4f387928c"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e28923312444cdd728e4738b3f9c9cac739500909bb3d3c94b43551b16517648"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cd54b81ec8d6180e24654d0b371ad22fc3dd083b6ff8ba325b72e00c87660a7"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
 name = "anyhow"
 version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -372,6 +420,52 @@ dependencies = [
 ]
 
 [[package]]
+name = "clap"
+version = "4.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e578d6ec4194633722ccf9544794b71b1385c3c027efe0c55db226fc880865c"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4df4df40ec50c46000231c914968278b1eb05098cf8f1b3a518a95030e71d1c7"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf9804afaaf59a91e75b022a30fb7229a7901f60c755489cc61c9b423b836442"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.39",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "702fc72eb24e5a1e48ce58027a675bc24edd52096d5397d4aea7c6dd9eca0bd1"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
+[[package]]
 name = "console"
 version = "0.15.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -492,6 +586,7 @@ dependencies = [
  "bstr",
  "bytes",
  "bzip2",
+ "clap",
  "digest 0.10.7",
  "fastcdc",
  "futures",
@@ -2486,6 +2581,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fe895eb47f22e2ddd4dabc02bce419d2e643c8e3b585c78158b349195bc24d82"
 
 [[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
+[[package]]
 name = "strum_macros"
 version = "0.25.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2696,6 +2797,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
 [[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
+[[package]]
 name = "version_check"
 version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2852,6 +2959,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets 0.52.0",
+]
+
+[[package]]
 name = "windows-targets"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2882,6 +2998,21 @@ dependencies = [
 ]
 
 [[package]]
+name = "windows-targets"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.0",
+ "windows_aarch64_msvc 0.52.0",
+ "windows_i686_gnu 0.52.0",
+ "windows_i686_msvc 0.52.0",
+ "windows_x86_64_gnu 0.52.0",
+ "windows_x86_64_gnullvm 0.52.0",
+ "windows_x86_64_msvc 0.52.0",
+]
+
+[[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2894,6 +3025,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2906,6 +3043,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2918,6 +3061,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2930,6 +3079,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2942,6 +3097,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2954,6 +3115,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2966,6 +3133,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
 [[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
+
+[[package]]
 name = "xml-rs"
 version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/tvix/tools/crunch-v2/Cargo.nix b/tvix/tools/crunch-v2/Cargo.nix
index 3fe5b155c9..35c09ecee7 100644
--- a/tvix/tools/crunch-v2/Cargo.nix
+++ b/tvix/tools/crunch-v2/Cargo.nix
@@ -1,5 +1,5 @@
 # This file was @generated by crate2nix 0.13.0 with the command:
-#   "generate"
+#   "generate" "--all-features"
 # See https://github.com/kolloch/crate2nix for more info.
 
 { nixpkgs ? <nixpkgs>
@@ -268,6 +268,110 @@ rec {
         ];
 
       };
+      "anstream" = rec {
+        crateName = "anstream";
+        version = "0.6.11";
+        edition = "2021";
+        sha256 = "19dndamalavhjwp4i74k8hdijcixb7gsfa6ycwyc1r8xn6y1wbkf";
+        dependencies = [
+          {
+            name = "anstyle";
+            packageId = "anstyle";
+          }
+          {
+            name = "anstyle-parse";
+            packageId = "anstyle-parse";
+          }
+          {
+            name = "anstyle-query";
+            packageId = "anstyle-query";
+            optional = true;
+          }
+          {
+            name = "anstyle-wincon";
+            packageId = "anstyle-wincon";
+            optional = true;
+            target = { target, features }: (target."windows" or false);
+          }
+          {
+            name = "colorchoice";
+            packageId = "colorchoice";
+          }
+          {
+            name = "utf8parse";
+            packageId = "utf8parse";
+          }
+        ];
+        features = {
+          "auto" = [ "dep:anstyle-query" ];
+          "default" = [ "auto" "wincon" ];
+          "wincon" = [ "dep:anstyle-wincon" ];
+        };
+        resolvedDefaultFeatures = [ "auto" "default" "wincon" ];
+      };
+      "anstyle" = rec {
+        crateName = "anstyle";
+        version = "1.0.4";
+        edition = "2021";
+        sha256 = "11yxw02b6parn29s757z96rgiqbn8qy0fk9a3p3bhczm85dhfybh";
+        features = {
+          "default" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "anstyle-parse" = rec {
+        crateName = "anstyle-parse";
+        version = "0.2.3";
+        edition = "2021";
+        sha256 = "134jhzrz89labrdwxxnjxqjdg06qvaflj1wkfnmyapwyldfwcnn7";
+        dependencies = [
+          {
+            name = "utf8parse";
+            packageId = "utf8parse";
+            optional = true;
+          }
+        ];
+        features = {
+          "core" = [ "dep:arrayvec" ];
+          "default" = [ "utf8" ];
+          "utf8" = [ "dep:utf8parse" ];
+        };
+        resolvedDefaultFeatures = [ "default" "utf8" ];
+      };
+      "anstyle-query" = rec {
+        crateName = "anstyle-query";
+        version = "1.0.2";
+        edition = "2021";
+        sha256 = "0j3na4b1nma39g4x7cwvj009awxckjf3z2vkwhldgka44hqj72g2";
+        dependencies = [
+          {
+            name = "windows-sys";
+            packageId = "windows-sys 0.52.0";
+            target = { target, features }: (target."windows" or false);
+            features = [ "Win32_System_Console" "Win32_Foundation" ];
+          }
+        ];
+
+      };
+      "anstyle-wincon" = rec {
+        crateName = "anstyle-wincon";
+        version = "3.0.2";
+        edition = "2021";
+        sha256 = "19v0fv400bmp4niqpzxnhg83vz12mmqv7l2l8vi80qcdxj0lpm8w";
+        dependencies = [
+          {
+            name = "anstyle";
+            packageId = "anstyle";
+          }
+          {
+            name = "windows-sys";
+            packageId = "windows-sys 0.52.0";
+            target = { target, features }: (target."windows" or false);
+            features = [ "Win32_System_Console" "Win32_Foundation" ];
+          }
+        ];
+
+      };
       "anyhow" = rec {
         crateName = "anyhow";
         version = "1.0.75";
@@ -1059,6 +1163,130 @@ rec {
         };
         resolvedDefaultFeatures = [ "android-tzdata" "clock" "iana-time-zone" "serde" "std" "winapi" "windows-targets" ];
       };
+      "clap" = rec {
+        crateName = "clap";
+        version = "4.4.18";
+        edition = "2021";
+        crateBin = [ ];
+        sha256 = "0p46h346y8nval6gwzh27if3icbi9dwl95fg5ir36ihrqip8smqy";
+        dependencies = [
+          {
+            name = "clap_builder";
+            packageId = "clap_builder";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "clap_derive";
+            packageId = "clap_derive";
+            optional = true;
+          }
+        ];
+        features = {
+          "cargo" = [ "clap_builder/cargo" ];
+          "color" = [ "clap_builder/color" ];
+          "debug" = [ "clap_builder/debug" "clap_derive?/debug" ];
+          "default" = [ "std" "color" "help" "usage" "error-context" "suggestions" ];
+          "deprecated" = [ "clap_builder/deprecated" "clap_derive?/deprecated" ];
+          "derive" = [ "dep:clap_derive" ];
+          "env" = [ "clap_builder/env" ];
+          "error-context" = [ "clap_builder/error-context" ];
+          "help" = [ "clap_builder/help" ];
+          "std" = [ "clap_builder/std" ];
+          "string" = [ "clap_builder/string" ];
+          "suggestions" = [ "clap_builder/suggestions" ];
+          "unicode" = [ "clap_builder/unicode" ];
+          "unstable-doc" = [ "clap_builder/unstable-doc" "derive" ];
+          "unstable-styles" = [ "clap_builder/unstable-styles" ];
+          "unstable-v5" = [ "clap_builder/unstable-v5" "clap_derive?/unstable-v5" "deprecated" ];
+          "usage" = [ "clap_builder/usage" ];
+          "wrap_help" = [ "clap_builder/wrap_help" ];
+        };
+        resolvedDefaultFeatures = [ "color" "default" "derive" "error-context" "help" "std" "suggestions" "usage" ];
+      };
+      "clap_builder" = rec {
+        crateName = "clap_builder";
+        version = "4.4.18";
+        edition = "2021";
+        sha256 = "1iyif47075caa4x1p3ygk18b07lb4xl4k48w4c061i2hxi0dzx2d";
+        dependencies = [
+          {
+            name = "anstream";
+            packageId = "anstream";
+            optional = true;
+          }
+          {
+            name = "anstyle";
+            packageId = "anstyle";
+          }
+          {
+            name = "clap_lex";
+            packageId = "clap_lex";
+          }
+          {
+            name = "strsim";
+            packageId = "strsim";
+            optional = true;
+          }
+        ];
+        features = {
+          "color" = [ "dep:anstream" ];
+          "debug" = [ "dep:backtrace" ];
+          "default" = [ "std" "color" "help" "usage" "error-context" "suggestions" ];
+          "std" = [ "anstyle/std" ];
+          "suggestions" = [ "dep:strsim" "error-context" ];
+          "unicode" = [ "dep:unicode-width" "dep:unicase" ];
+          "unstable-doc" = [ "cargo" "wrap_help" "env" "unicode" "string" ];
+          "unstable-styles" = [ "color" ];
+          "unstable-v5" = [ "deprecated" ];
+          "wrap_help" = [ "help" "dep:terminal_size" ];
+        };
+        resolvedDefaultFeatures = [ "color" "error-context" "help" "std" "suggestions" "usage" ];
+      };
+      "clap_derive" = rec {
+        crateName = "clap_derive";
+        version = "4.4.7";
+        edition = "2021";
+        sha256 = "0hk4hcxl56qwqsf4hmf7c0gr19r9fbxk0ah2bgkr36pmmaph966g";
+        procMacro = true;
+        dependencies = [
+          {
+            name = "heck";
+            packageId = "heck";
+          }
+          {
+            name = "proc-macro2";
+            packageId = "proc-macro2";
+          }
+          {
+            name = "quote";
+            packageId = "quote";
+          }
+          {
+            name = "syn";
+            packageId = "syn 2.0.39";
+            features = [ "full" ];
+          }
+        ];
+        features = {
+          "raw-deprecated" = [ "deprecated" ];
+          "unstable-v5" = [ "deprecated" ];
+        };
+        resolvedDefaultFeatures = [ "default" ];
+      };
+      "clap_lex" = rec {
+        crateName = "clap_lex";
+        version = "0.6.0";
+        edition = "2021";
+        sha256 = "1l8bragdvim7mva9flvd159dskn2bdkpl0jqrr41wnjfn8pcfbvh";
+
+      };
+      "colorchoice" = rec {
+        crateName = "colorchoice";
+        version = "1.0.0";
+        edition = "2021";
+        sha256 = "1ix7w85kwvyybwi2jdkl3yva2r2bvdcc3ka2grjfzfgrapqimgxc";
+
+      };
       "console" = rec {
         crateName = "console";
         version = "0.15.7";
@@ -1391,6 +1619,11 @@ rec {
             packageId = "bzip2";
           }
           {
+            name = "clap";
+            packageId = "clap";
+            features = [ "derive" ];
+          }
+          {
             name = "digest";
             packageId = "digest 0.10.7";
           }
@@ -8115,6 +8348,16 @@ rec {
         ];
 
       };
+      "strsim" = rec {
+        crateName = "strsim";
+        version = "0.10.0";
+        edition = "2015";
+        sha256 = "08s69r4rcrahwnickvi0kq49z524ci50capybln83mg6b473qivk";
+        authors = [
+          "Danny Guo <danny@dannyguo.com>"
+        ];
+
+      };
       "strum_macros" = rec {
         crateName = "strum_macros";
         version = "0.25.3";
@@ -8743,6 +8986,18 @@ rec {
         ];
 
       };
+      "utf8parse" = rec {
+        crateName = "utf8parse";
+        version = "0.2.1";
+        edition = "2018";
+        sha256 = "02ip1a0az0qmc2786vxk2nqwsgcwf17d3a38fkf0q7hrmwh9c6vi";
+        authors = [
+          "Joe Wilm <joe@jwilm.com>"
+          "Christian Duerr <contact@christianduerr.com>"
+        ];
+        features = { };
+        resolvedDefaultFeatures = [ "default" ];
+      };
       "version_check" = rec {
         crateName = "version_check";
         version = "0.9.4";
@@ -10103,6 +10358,253 @@ rec {
         };
         resolvedDefaultFeatures = [ "Win32" "Win32_Foundation" "Win32_NetworkManagement" "Win32_NetworkManagement_IpHelper" "Win32_Networking" "Win32_Networking_WinSock" "Win32_Security" "Win32_Security_Authentication" "Win32_Security_Authentication_Identity" "Win32_Security_Credentials" "Win32_Security_Cryptography" "Win32_Storage" "Win32_Storage_FileSystem" "Win32_System" "Win32_System_Console" "Win32_System_Diagnostics" "Win32_System_Diagnostics_Debug" "Win32_System_IO" "Win32_System_Memory" "Win32_System_Pipes" "Win32_System_SystemServices" "Win32_System_Threading" "Win32_System_WindowsProgramming" "Win32_UI" "Win32_UI_Shell" "default" ];
       };
+      "windows-sys 0.52.0" = rec {
+        crateName = "windows-sys";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "0gd3v4ji88490zgb6b5mq5zgbvwv7zx1ibn8v3x83rwcdbryaar8";
+        authors = [
+          "Microsoft"
+        ];
+        dependencies = [
+          {
+            name = "windows-targets";
+            packageId = "windows-targets 0.52.0";
+          }
+        ];
+        features = {
+          "Wdk_Foundation" = [ "Wdk" ];
+          "Wdk_Graphics" = [ "Wdk" ];
+          "Wdk_Graphics_Direct3D" = [ "Wdk_Graphics" ];
+          "Wdk_Storage" = [ "Wdk" ];
+          "Wdk_Storage_FileSystem" = [ "Wdk_Storage" ];
+          "Wdk_Storage_FileSystem_Minifilters" = [ "Wdk_Storage_FileSystem" ];
+          "Wdk_System" = [ "Wdk" ];
+          "Wdk_System_IO" = [ "Wdk_System" ];
+          "Wdk_System_OfflineRegistry" = [ "Wdk_System" ];
+          "Wdk_System_Registry" = [ "Wdk_System" ];
+          "Wdk_System_SystemInformation" = [ "Wdk_System" ];
+          "Wdk_System_SystemServices" = [ "Wdk_System" ];
+          "Wdk_System_Threading" = [ "Wdk_System" ];
+          "Win32_Data" = [ "Win32" ];
+          "Win32_Data_HtmlHelp" = [ "Win32_Data" ];
+          "Win32_Data_RightsManagement" = [ "Win32_Data" ];
+          "Win32_Devices" = [ "Win32" ];
+          "Win32_Devices_AllJoyn" = [ "Win32_Devices" ];
+          "Win32_Devices_BiometricFramework" = [ "Win32_Devices" ];
+          "Win32_Devices_Bluetooth" = [ "Win32_Devices" ];
+          "Win32_Devices_Communication" = [ "Win32_Devices" ];
+          "Win32_Devices_DeviceAndDriverInstallation" = [ "Win32_Devices" ];
+          "Win32_Devices_DeviceQuery" = [ "Win32_Devices" ];
+          "Win32_Devices_Display" = [ "Win32_Devices" ];
+          "Win32_Devices_Enumeration" = [ "Win32_Devices" ];
+          "Win32_Devices_Enumeration_Pnp" = [ "Win32_Devices_Enumeration" ];
+          "Win32_Devices_Fax" = [ "Win32_Devices" ];
+          "Win32_Devices_HumanInterfaceDevice" = [ "Win32_Devices" ];
+          "Win32_Devices_PortableDevices" = [ "Win32_Devices" ];
+          "Win32_Devices_Properties" = [ "Win32_Devices" ];
+          "Win32_Devices_Pwm" = [ "Win32_Devices" ];
+          "Win32_Devices_Sensors" = [ "Win32_Devices" ];
+          "Win32_Devices_SerialCommunication" = [ "Win32_Devices" ];
+          "Win32_Devices_Tapi" = [ "Win32_Devices" ];
+          "Win32_Devices_Usb" = [ "Win32_Devices" ];
+          "Win32_Devices_WebServicesOnDevices" = [ "Win32_Devices" ];
+          "Win32_Foundation" = [ "Win32" ];
+          "Win32_Gaming" = [ "Win32" ];
+          "Win32_Globalization" = [ "Win32" ];
+          "Win32_Graphics" = [ "Win32" ];
+          "Win32_Graphics_Dwm" = [ "Win32_Graphics" ];
+          "Win32_Graphics_Gdi" = [ "Win32_Graphics" ];
+          "Win32_Graphics_GdiPlus" = [ "Win32_Graphics" ];
+          "Win32_Graphics_Hlsl" = [ "Win32_Graphics" ];
+          "Win32_Graphics_OpenGL" = [ "Win32_Graphics" ];
+          "Win32_Graphics_Printing" = [ "Win32_Graphics" ];
+          "Win32_Graphics_Printing_PrintTicket" = [ "Win32_Graphics_Printing" ];
+          "Win32_Management" = [ "Win32" ];
+          "Win32_Management_MobileDeviceManagementRegistration" = [ "Win32_Management" ];
+          "Win32_Media" = [ "Win32" ];
+          "Win32_Media_Audio" = [ "Win32_Media" ];
+          "Win32_Media_DxMediaObjects" = [ "Win32_Media" ];
+          "Win32_Media_KernelStreaming" = [ "Win32_Media" ];
+          "Win32_Media_Multimedia" = [ "Win32_Media" ];
+          "Win32_Media_Streaming" = [ "Win32_Media" ];
+          "Win32_Media_WindowsMediaFormat" = [ "Win32_Media" ];
+          "Win32_NetworkManagement" = [ "Win32" ];
+          "Win32_NetworkManagement_Dhcp" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_Dns" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_InternetConnectionWizard" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_IpHelper" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_Multicast" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_Ndis" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_NetBios" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_NetManagement" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_NetShell" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_NetworkDiagnosticsFramework" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_P2P" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_QoS" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_Rras" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_Snmp" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WNet" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WebDav" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WiFi" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WindowsConnectionManager" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WindowsFilteringPlatform" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WindowsFirewall" = [ "Win32_NetworkManagement" ];
+          "Win32_NetworkManagement_WindowsNetworkVirtualization" = [ "Win32_NetworkManagement" ];
+          "Win32_Networking" = [ "Win32" ];
+          "Win32_Networking_ActiveDirectory" = [ "Win32_Networking" ];
+          "Win32_Networking_Clustering" = [ "Win32_Networking" ];
+          "Win32_Networking_HttpServer" = [ "Win32_Networking" ];
+          "Win32_Networking_Ldap" = [ "Win32_Networking" ];
+          "Win32_Networking_WebSocket" = [ "Win32_Networking" ];
+          "Win32_Networking_WinHttp" = [ "Win32_Networking" ];
+          "Win32_Networking_WinInet" = [ "Win32_Networking" ];
+          "Win32_Networking_WinSock" = [ "Win32_Networking" ];
+          "Win32_Networking_WindowsWebServices" = [ "Win32_Networking" ];
+          "Win32_Security" = [ "Win32" ];
+          "Win32_Security_AppLocker" = [ "Win32_Security" ];
+          "Win32_Security_Authentication" = [ "Win32_Security" ];
+          "Win32_Security_Authentication_Identity" = [ "Win32_Security_Authentication" ];
+          "Win32_Security_Authorization" = [ "Win32_Security" ];
+          "Win32_Security_Credentials" = [ "Win32_Security" ];
+          "Win32_Security_Cryptography" = [ "Win32_Security" ];
+          "Win32_Security_Cryptography_Catalog" = [ "Win32_Security_Cryptography" ];
+          "Win32_Security_Cryptography_Certificates" = [ "Win32_Security_Cryptography" ];
+          "Win32_Security_Cryptography_Sip" = [ "Win32_Security_Cryptography" ];
+          "Win32_Security_Cryptography_UI" = [ "Win32_Security_Cryptography" ];
+          "Win32_Security_DiagnosticDataQuery" = [ "Win32_Security" ];
+          "Win32_Security_DirectoryServices" = [ "Win32_Security" ];
+          "Win32_Security_EnterpriseData" = [ "Win32_Security" ];
+          "Win32_Security_ExtensibleAuthenticationProtocol" = [ "Win32_Security" ];
+          "Win32_Security_Isolation" = [ "Win32_Security" ];
+          "Win32_Security_LicenseProtection" = [ "Win32_Security" ];
+          "Win32_Security_NetworkAccessProtection" = [ "Win32_Security" ];
+          "Win32_Security_WinTrust" = [ "Win32_Security" ];
+          "Win32_Security_WinWlx" = [ "Win32_Security" ];
+          "Win32_Storage" = [ "Win32" ];
+          "Win32_Storage_Cabinets" = [ "Win32_Storage" ];
+          "Win32_Storage_CloudFilters" = [ "Win32_Storage" ];
+          "Win32_Storage_Compression" = [ "Win32_Storage" ];
+          "Win32_Storage_DistributedFileSystem" = [ "Win32_Storage" ];
+          "Win32_Storage_FileHistory" = [ "Win32_Storage" ];
+          "Win32_Storage_FileSystem" = [ "Win32_Storage" ];
+          "Win32_Storage_Imapi" = [ "Win32_Storage" ];
+          "Win32_Storage_IndexServer" = [ "Win32_Storage" ];
+          "Win32_Storage_InstallableFileSystems" = [ "Win32_Storage" ];
+          "Win32_Storage_IscsiDisc" = [ "Win32_Storage" ];
+          "Win32_Storage_Jet" = [ "Win32_Storage" ];
+          "Win32_Storage_Nvme" = [ "Win32_Storage" ];
+          "Win32_Storage_OfflineFiles" = [ "Win32_Storage" ];
+          "Win32_Storage_OperationRecorder" = [ "Win32_Storage" ];
+          "Win32_Storage_Packaging" = [ "Win32_Storage" ];
+          "Win32_Storage_Packaging_Appx" = [ "Win32_Storage_Packaging" ];
+          "Win32_Storage_ProjectedFileSystem" = [ "Win32_Storage" ];
+          "Win32_Storage_StructuredStorage" = [ "Win32_Storage" ];
+          "Win32_Storage_Vhd" = [ "Win32_Storage" ];
+          "Win32_Storage_Xps" = [ "Win32_Storage" ];
+          "Win32_System" = [ "Win32" ];
+          "Win32_System_AddressBook" = [ "Win32_System" ];
+          "Win32_System_Antimalware" = [ "Win32_System" ];
+          "Win32_System_ApplicationInstallationAndServicing" = [ "Win32_System" ];
+          "Win32_System_ApplicationVerifier" = [ "Win32_System" ];
+          "Win32_System_ClrHosting" = [ "Win32_System" ];
+          "Win32_System_Com" = [ "Win32_System" ];
+          "Win32_System_Com_Marshal" = [ "Win32_System_Com" ];
+          "Win32_System_Com_StructuredStorage" = [ "Win32_System_Com" ];
+          "Win32_System_Com_Urlmon" = [ "Win32_System_Com" ];
+          "Win32_System_ComponentServices" = [ "Win32_System" ];
+          "Win32_System_Console" = [ "Win32_System" ];
+          "Win32_System_CorrelationVector" = [ "Win32_System" ];
+          "Win32_System_DataExchange" = [ "Win32_System" ];
+          "Win32_System_DeploymentServices" = [ "Win32_System" ];
+          "Win32_System_DeveloperLicensing" = [ "Win32_System" ];
+          "Win32_System_Diagnostics" = [ "Win32_System" ];
+          "Win32_System_Diagnostics_Ceip" = [ "Win32_System_Diagnostics" ];
+          "Win32_System_Diagnostics_Debug" = [ "Win32_System_Diagnostics" ];
+          "Win32_System_Diagnostics_Debug_Extensions" = [ "Win32_System_Diagnostics_Debug" ];
+          "Win32_System_Diagnostics_Etw" = [ "Win32_System_Diagnostics" ];
+          "Win32_System_Diagnostics_ProcessSnapshotting" = [ "Win32_System_Diagnostics" ];
+          "Win32_System_Diagnostics_ToolHelp" = [ "Win32_System_Diagnostics" ];
+          "Win32_System_DistributedTransactionCoordinator" = [ "Win32_System" ];
+          "Win32_System_Environment" = [ "Win32_System" ];
+          "Win32_System_ErrorReporting" = [ "Win32_System" ];
+          "Win32_System_EventCollector" = [ "Win32_System" ];
+          "Win32_System_EventLog" = [ "Win32_System" ];
+          "Win32_System_EventNotificationService" = [ "Win32_System" ];
+          "Win32_System_GroupPolicy" = [ "Win32_System" ];
+          "Win32_System_HostCompute" = [ "Win32_System" ];
+          "Win32_System_HostComputeNetwork" = [ "Win32_System" ];
+          "Win32_System_HostComputeSystem" = [ "Win32_System" ];
+          "Win32_System_Hypervisor" = [ "Win32_System" ];
+          "Win32_System_IO" = [ "Win32_System" ];
+          "Win32_System_Iis" = [ "Win32_System" ];
+          "Win32_System_Ioctl" = [ "Win32_System" ];
+          "Win32_System_JobObjects" = [ "Win32_System" ];
+          "Win32_System_Js" = [ "Win32_System" ];
+          "Win32_System_Kernel" = [ "Win32_System" ];
+          "Win32_System_LibraryLoader" = [ "Win32_System" ];
+          "Win32_System_Mailslots" = [ "Win32_System" ];
+          "Win32_System_Mapi" = [ "Win32_System" ];
+          "Win32_System_Memory" = [ "Win32_System" ];
+          "Win32_System_Memory_NonVolatile" = [ "Win32_System_Memory" ];
+          "Win32_System_MessageQueuing" = [ "Win32_System" ];
+          "Win32_System_MixedReality" = [ "Win32_System" ];
+          "Win32_System_Ole" = [ "Win32_System" ];
+          "Win32_System_PasswordManagement" = [ "Win32_System" ];
+          "Win32_System_Performance" = [ "Win32_System" ];
+          "Win32_System_Performance_HardwareCounterProfiling" = [ "Win32_System_Performance" ];
+          "Win32_System_Pipes" = [ "Win32_System" ];
+          "Win32_System_Power" = [ "Win32_System" ];
+          "Win32_System_ProcessStatus" = [ "Win32_System" ];
+          "Win32_System_Recovery" = [ "Win32_System" ];
+          "Win32_System_Registry" = [ "Win32_System" ];
+          "Win32_System_RemoteDesktop" = [ "Win32_System" ];
+          "Win32_System_RemoteManagement" = [ "Win32_System" ];
+          "Win32_System_RestartManager" = [ "Win32_System" ];
+          "Win32_System_Restore" = [ "Win32_System" ];
+          "Win32_System_Rpc" = [ "Win32_System" ];
+          "Win32_System_Search" = [ "Win32_System" ];
+          "Win32_System_Search_Common" = [ "Win32_System_Search" ];
+          "Win32_System_SecurityCenter" = [ "Win32_System" ];
+          "Win32_System_Services" = [ "Win32_System" ];
+          "Win32_System_SetupAndMigration" = [ "Win32_System" ];
+          "Win32_System_Shutdown" = [ "Win32_System" ];
+          "Win32_System_StationsAndDesktops" = [ "Win32_System" ];
+          "Win32_System_SubsystemForLinux" = [ "Win32_System" ];
+          "Win32_System_SystemInformation" = [ "Win32_System" ];
+          "Win32_System_SystemServices" = [ "Win32_System" ];
+          "Win32_System_Threading" = [ "Win32_System" ];
+          "Win32_System_Time" = [ "Win32_System" ];
+          "Win32_System_TpmBaseServices" = [ "Win32_System" ];
+          "Win32_System_UserAccessLogging" = [ "Win32_System" ];
+          "Win32_System_Variant" = [ "Win32_System" ];
+          "Win32_System_VirtualDosMachines" = [ "Win32_System" ];
+          "Win32_System_WindowsProgramming" = [ "Win32_System" ];
+          "Win32_System_Wmi" = [ "Win32_System" ];
+          "Win32_UI" = [ "Win32" ];
+          "Win32_UI_Accessibility" = [ "Win32_UI" ];
+          "Win32_UI_ColorSystem" = [ "Win32_UI" ];
+          "Win32_UI_Controls" = [ "Win32_UI" ];
+          "Win32_UI_Controls_Dialogs" = [ "Win32_UI_Controls" ];
+          "Win32_UI_HiDpi" = [ "Win32_UI" ];
+          "Win32_UI_Input" = [ "Win32_UI" ];
+          "Win32_UI_Input_Ime" = [ "Win32_UI_Input" ];
+          "Win32_UI_Input_KeyboardAndMouse" = [ "Win32_UI_Input" ];
+          "Win32_UI_Input_Pointer" = [ "Win32_UI_Input" ];
+          "Win32_UI_Input_Touch" = [ "Win32_UI_Input" ];
+          "Win32_UI_Input_XboxController" = [ "Win32_UI_Input" ];
+          "Win32_UI_InteractionContext" = [ "Win32_UI" ];
+          "Win32_UI_Magnification" = [ "Win32_UI" ];
+          "Win32_UI_Shell" = [ "Win32_UI" ];
+          "Win32_UI_Shell_PropertiesSystem" = [ "Win32_UI_Shell" ];
+          "Win32_UI_TabletPC" = [ "Win32_UI" ];
+          "Win32_UI_TextServices" = [ "Win32_UI" ];
+          "Win32_UI_WindowsAndMessaging" = [ "Win32_UI" ];
+          "Win32_Web" = [ "Win32" ];
+          "Win32_Web_InternetExplorer" = [ "Win32_Web" ];
+        };
+        resolvedDefaultFeatures = [ "Win32" "Win32_Foundation" "Win32_System" "Win32_System_Console" "default" ];
+      };
       "windows-targets 0.42.2" = rec {
         crateName = "windows-targets";
         version = "0.42.2";
@@ -10222,6 +10724,53 @@ rec {
         ];
 
       };
+      "windows-targets 0.52.0" = rec {
+        crateName = "windows-targets";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "1kg7a27ynzw8zz3krdgy6w5gbqcji27j1sz4p7xk2j5j8082064a";
+        authors = [
+          "Microsoft"
+        ];
+        dependencies = [
+          {
+            name = "windows_aarch64_gnullvm";
+            packageId = "windows_aarch64_gnullvm 0.52.0";
+            target = { target, features }: (pkgs.rust.lib.toRustTarget stdenv.hostPlatform == "aarch64-pc-windows-gnullvm");
+          }
+          {
+            name = "windows_aarch64_msvc";
+            packageId = "windows_aarch64_msvc 0.52.0";
+            target = { target, features }: (("aarch64" == target."arch" or null) && ("msvc" == target."env" or null) && (!(target."windows_raw_dylib" or false)));
+          }
+          {
+            name = "windows_i686_gnu";
+            packageId = "windows_i686_gnu 0.52.0";
+            target = { target, features }: (("x86" == target."arch" or null) && ("gnu" == target."env" or null) && (!(target."windows_raw_dylib" or false)));
+          }
+          {
+            name = "windows_i686_msvc";
+            packageId = "windows_i686_msvc 0.52.0";
+            target = { target, features }: (("x86" == target."arch" or null) && ("msvc" == target."env" or null) && (!(target."windows_raw_dylib" or false)));
+          }
+          {
+            name = "windows_x86_64_gnu";
+            packageId = "windows_x86_64_gnu 0.52.0";
+            target = { target, features }: (("x86_64" == target."arch" or null) && ("gnu" == target."env" or null) && (!("llvm" == target."abi" or null)) && (!(target."windows_raw_dylib" or false)));
+          }
+          {
+            name = "windows_x86_64_gnullvm";
+            packageId = "windows_x86_64_gnullvm 0.52.0";
+            target = { target, features }: (pkgs.rust.lib.toRustTarget stdenv.hostPlatform == "x86_64-pc-windows-gnullvm");
+          }
+          {
+            name = "windows_x86_64_msvc";
+            packageId = "windows_x86_64_msvc 0.52.0";
+            target = { target, features }: (("x86_64" == target."arch" or null) && ("msvc" == target."env" or null) && (!(target."windows_raw_dylib" or false)));
+          }
+        ];
+
+      };
       "windows_aarch64_gnullvm 0.42.2" = rec {
         crateName = "windows_aarch64_gnullvm";
         version = "0.42.2";
@@ -10242,6 +10791,16 @@ rec {
         ];
 
       };
+      "windows_aarch64_gnullvm 0.52.0" = rec {
+        crateName = "windows_aarch64_gnullvm";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "1shmn1kbdc0bpphcxz0vlph96bxz0h1jlmh93s9agf2dbpin8xyb";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_aarch64_msvc 0.42.2" = rec {
         crateName = "windows_aarch64_msvc";
         version = "0.42.2";
@@ -10262,6 +10821,16 @@ rec {
         ];
 
       };
+      "windows_aarch64_msvc 0.52.0" = rec {
+        crateName = "windows_aarch64_msvc";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "1vvmy1ypvzdvxn9yf0b8ygfl85gl2gpcyvsvqppsmlpisil07amv";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_i686_gnu 0.42.2" = rec {
         crateName = "windows_i686_gnu";
         version = "0.42.2";
@@ -10282,6 +10851,16 @@ rec {
         ];
 
       };
+      "windows_i686_gnu 0.52.0" = rec {
+        crateName = "windows_i686_gnu";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "04zkglz4p3pjsns5gbz85v4s5aw102raz4spj4b0lmm33z5kg1m2";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_i686_msvc 0.42.2" = rec {
         crateName = "windows_i686_msvc";
         version = "0.42.2";
@@ -10302,6 +10881,16 @@ rec {
         ];
 
       };
+      "windows_i686_msvc 0.52.0" = rec {
+        crateName = "windows_i686_msvc";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "16kvmbvx0vr0zbgnaz6nsks9ycvfh5xp05bjrhq65kj623iyirgz";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_x86_64_gnu 0.42.2" = rec {
         crateName = "windows_x86_64_gnu";
         version = "0.42.2";
@@ -10322,6 +10911,16 @@ rec {
         ];
 
       };
+      "windows_x86_64_gnu 0.52.0" = rec {
+        crateName = "windows_x86_64_gnu";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "1zdy4qn178sil5sdm63lm7f0kkcjg6gvdwmcprd2yjmwn8ns6vrx";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_x86_64_gnullvm 0.42.2" = rec {
         crateName = "windows_x86_64_gnullvm";
         version = "0.42.2";
@@ -10342,6 +10941,16 @@ rec {
         ];
 
       };
+      "windows_x86_64_gnullvm 0.52.0" = rec {
+        crateName = "windows_x86_64_gnullvm";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "17lllq4l2k1lqgcnw1cccphxp9vs7inq99kjlm2lfl9zklg7wr8s";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "windows_x86_64_msvc 0.42.2" = rec {
         crateName = "windows_x86_64_msvc";
         version = "0.42.2";
@@ -10362,6 +10971,16 @@ rec {
         ];
 
       };
+      "windows_x86_64_msvc 0.52.0" = rec {
+        crateName = "windows_x86_64_msvc";
+        version = "0.52.0";
+        edition = "2021";
+        sha256 = "012wfq37f18c09ij5m6rniw7xxn5fcvrxbqd0wd8vgnl3hfn9yfz";
+        authors = [
+          "Microsoft"
+        ];
+
+      };
       "xml-rs" = rec {
         crateName = "xml-rs";
         version = "0.8.19";
@@ -10698,6 +11317,16 @@ rec {
             # recreate a file hierarchy as when running tests with cargo
 
             # the source for test data
+            # It's necessary to locate the source in $NIX_BUILD_TOP/source/
+            # instead of $NIX_BUILD_TOP/
+            # because we compiled those test binaries in the former and not the latter.
+            # So all paths will expect source tree to be there and not in the build top directly.
+            # For example: $NIX_BUILD_TOP := /build in general, if you ask yourself.
+            # TODO(raitobezarius): I believe there could be more edge cases if `crate.sourceRoot`
+            # do exist but it's very hard to reason about them, so let's wait until the first bug report.
+            mkdir -p source/
+            cd source/
+
             ${pkgs.buildPackages.xorg.lndir}/bin/lndir ${crate.src}
 
             # build outputs
diff --git a/tvix/tools/crunch-v2/Cargo.toml b/tvix/tools/crunch-v2/Cargo.toml
index eb44805d7c..1e3f025250 100644
--- a/tvix/tools/crunch-v2/Cargo.toml
+++ b/tvix/tools/crunch-v2/Cargo.toml
@@ -33,6 +33,7 @@ zstd = "0.13.0"
 prost = "0.12.2"
 polars = { version = "0.35.4", default-features = false, features = ["parquet", "lazy", "sql", "dtype-struct"] }
 indicatif = "0.17.7"
+clap = { version = "4.4.18", features = ["derive"] }
 
 [build-dependencies]
 prost-build = "0.12.2"
diff --git a/tvix/tools/crunch-v2/src/bin/extract.rs b/tvix/tools/crunch-v2/src/bin/extract.rs
index 8da8df707a..416d201f4e 100644
--- a/tvix/tools/crunch-v2/src/bin/extract.rs
+++ b/tvix/tools/crunch-v2/src/bin/extract.rs
@@ -5,13 +5,12 @@
 //! They are concatenated without any additional structure, so nothing but the chunk list is preserved.
 
 use anyhow::Result;
+use clap::Parser;
 use indicatif::{ProgressBar, ProgressStyle};
 use std::fs::File;
+use std::path::PathBuf;
 
-use crunch_v2::{
-    proto::{self, path::Node},
-    FILES,
-};
+use crunch_v2::proto::{self, path::Node};
 use prost::Message;
 
 use polars::{
@@ -23,15 +22,32 @@ use polars::{
     series::IntoSeries,
 };
 
+#[derive(Parser)]
+struct Args {
+    /// Path to the sled database that's read from.
+    #[clap(default_value = "crunch.db")]
+    infile: PathBuf,
+
+    /// Path to the resulting parquet file that's written.
+    #[clap(default_value = "crunch.parquet")]
+    outfile: PathBuf,
+}
+
 fn main() -> Result<()> {
-    let w = ParquetWriter::new(File::create("crunch.parquet")?);
+    let args = Args::parse();
+
+    let w = ParquetWriter::new(File::create(args.outfile)?);
+
+    let db: sled::Db = sled::open(&args.infile).unwrap();
+    let files_tree: sled::Tree = db.open_tree("files").unwrap();
 
-    let progress = ProgressBar::new(FILES.len() as u64).with_style(ProgressStyle::with_template(
-        "{elapsed_precise}/{duration_precise} {wide_bar} {pos}/{len}",
-    )?);
+    let progress =
+        ProgressBar::new(files_tree.len() as u64).with_style(ProgressStyle::with_template(
+            "{elapsed_precise}/{duration_precise} {wide_bar} {pos}/{len}",
+        )?);
 
     let mut frame = FrameBuilder::new();
-    for entry in &*FILES {
+    for entry in &files_tree {
         let (file_hash, pb) = entry?;
         frame.push(
             file_hash[..].try_into().unwrap(),
diff --git a/tvix/tools/crunch-v2/src/lib.rs b/tvix/tools/crunch-v2/src/lib.rs
index 0f84e84f17..09ea2e75d5 100644
--- a/tvix/tools/crunch-v2/src/lib.rs
+++ b/tvix/tools/crunch-v2/src/lib.rs
@@ -1,10 +1,3 @@
-use lazy_static::lazy_static;
-
 pub mod proto {
     include!(concat!(env!("OUT_DIR"), "/tvix.flatstore.v1.rs"));
 }
-
-lazy_static! {
-    static ref DB: sled::Db = sled::open("crunch.db").unwrap();
-    pub static ref FILES: sled::Tree = DB.open_tree("files").unwrap();
-}
diff --git a/tvix/tools/crunch-v2/src/main.rs b/tvix/tools/crunch-v2/src/main.rs
index 2aa2939fa1..a5d538f6be 100644
--- a/tvix/tools/crunch-v2/src/main.rs
+++ b/tvix/tools/crunch-v2/src/main.rs
@@ -9,16 +9,17 @@
 //!
 //! flatstore protobufs are written to a sled database named `crunch.db`, addressed by file hash.
 
-use crunch_v2::{proto, FILES};
+use crunch_v2::proto;
 
 mod remote;
 
 use anyhow::Result;
+use clap::Parser;
 use futures::{stream, StreamExt, TryStreamExt};
 use indicatif::{ProgressBar, ProgressStyle};
 use std::{
-    env,
     io::{self, BufRead, Read, Write},
+    path::PathBuf,
     ptr,
 };
 
@@ -34,13 +35,39 @@ use digest::Digest;
 use prost::Message;
 use sha2::Sha256;
 
+#[derive(Parser)]
+struct Args {
+    /// Path to an existing parquet file.
+    /// The `file_hash` column should contain SHA-256 hashes of the compressed
+    /// data, corresponding to the `FileHash` narinfo field.
+    /// The `compression` column should contain either `"bzip2"` or `"xz"`,
+    /// corresponding to the `Compression` narinfo field.
+    /// Additional columns are ignored, but can be used by the SQL filter expression.
+    #[clap(long, default_value = "ingest.parquet")]
+    infile: PathBuf,
+
+    /// Filter expression to filter elements in the parquet file for.
+    filter: String,
+
+    /// Average chunk size for FastCDC, in KiB.
+    /// min value is half, max value double of that number.
+    #[clap(long, default_value_t = 256)]
+    avg_chunk_size: u32,
+
+    /// Path to the sled database where results are written to (flatstore
+    /// protobufs, addressed by file hash).
+    #[clap(long, default_value = "crunch.db")]
+    outfile: PathBuf,
+}
+
 #[tokio::main]
 async fn main() -> Result<()> {
-    let mut args = env::args();
-    args.next().unwrap();
+    let args = Args::parse();
 
-    let filter = sql_expr(args.next().unwrap())?;
-    let df = LazyFrame::scan_parquet("ingest.parquet", ScanArgsParquet::default())?
+    let filter = sql_expr(args.filter)?;
+    let avg_chunk_size = args.avg_chunk_size * 1024;
+
+    let df = LazyFrame::scan_parquet(&args.infile, ScanArgsParquet::default())?
         .filter(filter)
         .select([col("file_hash"), col("compression")])
         .drop_nulls(None)
@@ -62,12 +89,16 @@ async fn main() -> Result<()> {
         .into_iter()
         .map(|c| c.unwrap());
 
+    let db: sled::Db = sled::open(args.outfile).unwrap();
+    let files_tree = db.open_tree("files").unwrap();
+
     let res = stream::iter(file_hash.zip(compression))
         .map(Ok)
         .try_for_each_concurrent(Some(16), |(file_hash, compression)| {
             let progress = progress.clone();
+            let files_tree = files_tree.clone();
             async move {
-                if FILES.contains_key(&file_hash)? {
+                if files_tree.contains_key(&file_hash)? {
                     progress.inc(1);
                     return Ok(());
                 }
@@ -77,12 +108,15 @@ async fn main() -> Result<()> {
                 tokio::task::spawn_blocking(move || {
                     let mut reader = Sha256Reader::from(reader);
 
-                    let path = ingest(nar::open(&mut reader)?, vec![]).map(|node| proto::Path {
-                        nar_hash: reader.finalize().as_slice().into(),
-                        node: Some(node),
-                    })?;
+                    let path =
+                        ingest(nar::open(&mut reader)?, vec![], avg_chunk_size).map(|node| {
+                            proto::Path {
+                                nar_hash: reader.finalize().as_slice().into(),
+                                node: Some(node),
+                            }
+                        })?;
 
-                    FILES.insert(file_hash, path.encode_to_vec())?;
+                    files_tree.insert(file_hash, path.encode_to_vec())?;
                     progress.inc(1);
 
                     Ok::<_, anyhow::Error>(())
@@ -92,7 +126,7 @@ async fn main() -> Result<()> {
         })
         .await;
 
-    let flush = crunch_v2::FILES.flush_async().await;
+    let flush = files_tree.flush_async().await;
 
     res?;
     flush?;
@@ -100,7 +134,7 @@ async fn main() -> Result<()> {
     Ok(())
 }
 
-fn ingest(node: nar::Node, name: Vec<u8>) -> Result<proto::path::Node> {
+fn ingest(node: nar::Node, name: Vec<u8>, avg_chunk_size: u32) -> Result<proto::path::Node> {
     match node {
         nar::Node::Symlink { target } => Ok(proto::path::Node::Symlink(proto::SymlinkNode {
             name,
@@ -113,7 +147,7 @@ fn ingest(node: nar::Node, name: Vec<u8>) -> Result<proto::path::Node> {
             let mut symlinks = vec![];
 
             while let Some(node) = reader.next()? {
-                match ingest(node.node, node.name)? {
+                match ingest(node.node, node.name, avg_chunk_size)? {
                     proto::path::Node::Directory(node) => {
                         directories.push(node);
                     }
@@ -138,7 +172,12 @@ fn ingest(node: nar::Node, name: Vec<u8>) -> Result<proto::path::Node> {
             let mut reader = B3Reader::from(reader);
             let mut chunks = vec![];
 
-            for chunk in StreamCDC::new(&mut reader, 1 << 17, 1 << 18, 1 << 19) {
+            for chunk in StreamCDC::new(
+                &mut reader,
+                avg_chunk_size / 2,
+                avg_chunk_size,
+                avg_chunk_size * 2,
+            ) {
                 let ChunkData {
                     length: size, data, ..
                 } = chunk?;