diff --git a/flake.lock b/flake.lock
index b43d90f..de31fda 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,14 +1,27 @@
 {
   "nodes": {
+    "advisory-db": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1688825073,
+        "narHash": "sha256-fK2huTDGHJc/oZjZWhMZMAt1nQSuuY6p41Y2pudtJdM=",
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "rev": "5ceeefcbbabf4b510ef8ede121d6dc57d1a1f7f8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "type": "github"
+      }
+    },
     "crane": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "flake-utils": [
-          "uiua",
-          "flake-utils"
-        ],
+        "flake-utils": "flake-utils_2",
         "nixpkgs": [
-          "uiua",
+          "nickel",
           "nixpkgs"
         ],
         "rust-overlay": "rust-overlay"
@@ -27,6 +40,58 @@
         "type": "github"
       }
     },
+    "crane_2": {
+      "inputs": {
+        "flake-compat": "flake-compat_4",
+        "flake-utils": "flake-utils_4",
+        "nixpkgs": [
+          "nickel",
+          "topiary",
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay_3"
+      },
+      "locked": {
+        "lastModified": 1688772518,
+        "narHash": "sha256-ol7gZxwvgLnxNSZwFTDJJ49xVY5teaSvF7lzlo3YQfM=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "8b08e96c9af8c6e3a2b69af5a7fa168750fcf88e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "crane_3": {
+      "inputs": {
+        "flake-compat": "flake-compat_5",
+        "flake-utils": [
+          "uiua",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "uiua",
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay_5"
+      },
+      "locked": {
+        "lastModified": 1695511445,
+        "narHash": "sha256-mnE14re43v3/Jc50Jv0BKPMtEk7FEtDSligP6B5HwlI=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "3de322e06fc88ada5e3589dc8a375b73e749f512",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -43,6 +108,70 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_3": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_4": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_5": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -79,7 +208,262 @@
         "type": "github"
       }
     },
+    "flake-utils_3": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_4": {
+      "inputs": {
+        "systems": "systems_4"
+      },
+      "locked": {
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_5": {
+      "inputs": {
+        "systems": "systems_5"
+      },
+      "locked": {
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_6": {
+      "inputs": {
+        "systems": "systems_6"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_7": {
+      "inputs": {
+        "systems": "systems_7"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "nickel",
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "lowdown-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1633514407,
+        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "type": "github"
+      }
+    },
+    "nickel": {
+      "inputs": {
+        "crane": "crane",
+        "flake-utils": "flake-utils_3",
+        "nix-input": "nix-input",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "pre-commit-hooks": "pre-commit-hooks",
+        "rust-overlay": "rust-overlay_2",
+        "topiary": "topiary"
+      },
+      "locked": {
+        "lastModified": 1700157516,
+        "narHash": "sha256-j4Tnhef9C+cXQb82bazpYbI4lNE+aTXcb6FrKkcn76o=",
+        "owner": "tweag",
+        "repo": "nickel",
+        "rev": "063d77e46b11c26103d34971071271efc702ed73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "tweag",
+        "ref": "stable",
+        "repo": "nickel",
+        "type": "github"
+      }
+    },
+    "nix-filter": {
+      "locked": {
+        "lastModified": 1687178632,
+        "narHash": "sha256-HS7YR5erss0JCaUijPeyg2XrisEb959FIct3n2TMGbE=",
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "rev": "d90c75e8319d0dd9be67d933d8eb9d0894ec9174",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "type": "github"
+      }
+    },
+    "nix-input": {
+      "inputs": {
+        "flake-compat": "flake-compat_2",
+        "lowdown-src": "lowdown-src",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1694598107,
+        "narHash": "sha256-JEJSU2O+getWkc+Ql6Dsp72ZGihyZ2Ba7fMdv+ma4TQ=",
+        "owner": "nixos",
+        "repo": "nix",
+        "rev": "b99fdcf8dbb38ec0be0e82f65d1d138ec9e89dda",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1695830400,
+        "narHash": "sha256-gToZXQVr0G/1WriO83olnqrLSHF2Jb8BPcmCt497ro0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8a86b98f0ba1c405358f1b71ff8b5e1d317f5db2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-regression": {
+      "locked": {
+        "lastModified": 1643052045,
+        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1685801374,
+        "narHash": "sha256-otaSUoFEMM+LjBI1XL/xGB5ao6IwnZOXc47qhIgJe8U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c37ca420157f4abc31e26f436c1145f8951ff373",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1703013332,
         "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
@@ -95,14 +479,143 @@
         "type": "github"
       }
     },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat_3",
+        "flake-utils": [
+          "nickel",
+          "flake-utils"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nickel",
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1695576016,
+        "narHash": "sha256-71KxwRhTfVuh7kNrg3/edNjYVg9DCyKZl2QIKbhRggg=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "cb770e93516a1609652fa8e945a0f310e98f10c0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs",
+        "nickel": "nickel",
+        "nixpkgs": "nixpkgs_3",
         "uiua": "uiua"
       }
     },
     "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "nickel",
+          "crane",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nickel",
+          "crane",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1695003086,
+        "narHash": "sha256-d1/ZKuBRpxifmUf7FaedCqhy0lyVbqj44Oc2s+P5bdA=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "b87a14abea512d956f0b89d0d8a1e9b41f3e20ff",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "rust-overlay_2": {
+      "inputs": {
+        "flake-utils": [
+          "nickel",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nickel",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1696039808,
+        "narHash": "sha256-7TbAr9LskWG6ISPhUdyp6zHboT7FsFrME5QsWKybPTA=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "a4c3c904ab29e04a20d3a6da6626d66030385773",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "rust-overlay_3": {
+      "inputs": {
+        "flake-utils": [
+          "nickel",
+          "topiary",
+          "crane",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nickel",
+          "topiary",
+          "crane",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1688351637,
+        "narHash": "sha256-CLTufJ29VxNOIZ8UTg0lepsn3X03AmopmaLTTeHDCL4=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "f9b92316727af9e6c7fee4a761242f7f46880329",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "rust-overlay_4": {
+      "inputs": {
+        "flake-utils": "flake-utils_6",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1689042658,
+        "narHash": "sha256-p7cQAFNt5kX19sZvK74CmY0nTrtujpZg6sZUiV1ntAk=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "d7181bb2237035df17cab9295c95f987f5c527e6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "rust-overlay_5": {
       "inputs": {
         "flake-utils": [
           "uiua",
@@ -159,10 +672,111 @@
         "type": "github"
       }
     },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_4": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_5": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_6": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_7": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "topiary": {
+      "inputs": {
+        "advisory-db": "advisory-db",
+        "crane": "crane_2",
+        "flake-utils": "flake-utils_5",
+        "nix-filter": "nix-filter",
+        "nixpkgs": [
+          "nickel",
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay_4"
+      },
+      "locked": {
+        "lastModified": 1695289853,
+        "narHash": "sha256-EgDFjJeGJb36je/be7DXvzvpBYDUaupOiQxtL7bN/+Q=",
+        "owner": "tweag",
+        "repo": "topiary",
+        "rev": "8299a04bf83c4a2774cbbff7a036c022efa939b3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "tweag",
+        "repo": "topiary",
+        "type": "github"
+      }
+    },
     "uiua": {
       "inputs": {
-        "crane": "crane",
-        "flake-utils": "flake-utils_2",
+        "crane": "crane_3",
+        "flake-utils": "flake-utils_7",
         "nixpkgs": [
           "nixpkgs"
         ]
diff --git a/flake.nix b/flake.nix
index b02489a..7ab64f4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,6 @@
   description = "A few hydra jobs";
   inputs = {
     nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
-    flake-utils.url = github:numtide/flake-utils;
     uiua = {
       url = github:uiua-lang/uiua?ref=0.7.1;
       inputs.nixpkgs.follows = "nixpkgs";
@@ -12,7 +11,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
-  outputs = { self,  nixpkgs, uiua, nickel }:
+  outputs = { self, nixpkgs, uiua, nickel }:
   let system = "x86_64-linux";
       pkgs = nixpkgs.legacyPackages.${system};
   in {