diff --git a/flake.lock b/flake.lock
index 16d4c44..95c58ae 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,105 @@
 {
   "nodes": {
+    "HTTP": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1451647621,
+        "narHash": "sha256-oHIyw3x0iKBexEo49YeUDV1k74ZtyYKGR2gNJXXRxts=",
+        "owner": "phadej",
+        "repo": "HTTP",
+        "rev": "9bc0996d412fef1787449d841277ef663ad9a915",
+        "type": "github"
+      },
+      "original": {
+        "owner": "phadej",
+        "repo": "HTTP",
+        "type": "github"
+      }
+    },
+    "cabal-32": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1603716527,
+        "narHash": "sha256-X0TFfdD4KZpwl0Zr6x+PLxUt/VyKQfX7ylXHdmZIL+w=",
+        "owner": "haskell",
+        "repo": "cabal",
+        "rev": "48bf10787e27364730dd37a42b603cee8d6af7ee",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "3.2",
+        "repo": "cabal",
+        "type": "github"
+      }
+    },
+    "cabal-34": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1645834128,
+        "narHash": "sha256-wG3d+dOt14z8+ydz4SL7pwGfe7SiimxcD/LOuPCV6xM=",
+        "owner": "haskell",
+        "repo": "cabal",
+        "rev": "5ff598c67f53f7c4f48e31d722ba37172230c462",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "3.4",
+        "repo": "cabal",
+        "type": "github"
+      }
+    },
+    "cabal-36": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1669081697,
+        "narHash": "sha256-I5or+V7LZvMxfbYgZATU4awzkicBwwok4mVoje+sGmU=",
+        "owner": "haskell",
+        "repo": "cabal",
+        "rev": "8fd619e33d34924a94e691c5fea2c42f0fc7f144",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "3.6",
+        "repo": "cabal",
+        "type": "github"
+      }
+    },
+    "cardano-shell": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1608537748,
+        "narHash": "sha256-PulY1GfiMgKVnBci3ex4ptk2UNYMXqGjJOxcPy2KYT4=",
+        "owner": "input-output-hk",
+        "repo": "cardano-shell",
+        "rev": "9392c75087cb9a3d453998f4230930dea3a95725",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "repo": "cardano-shell",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1672831974,
+        "narHash": "sha256-z9k3MfslLjWQfnjBtEtJZdq3H7kyi2kQtUThfTgdRk0=",
+        "owner": "input-output-hk",
+        "repo": "flake-compat",
+        "rev": "45f2638735f8cdc40fe302742b79f248d23eb368",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "ref": "hkm/gitlab-fix",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -18,24 +118,533 @@
         "type": "github"
       }
     },
-    "nixpkgs": {
+    "hackage": {
+      "flake": false,
       "locked": {
-        "lastModified": 1738136902,
-        "narHash": "sha256-pUvLijVGARw4u793APze3j6mU1Zwdtz7hGkGGkD87qw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "9a5db3142ce450045840cc8d832b13b8a2018e0c",
+        "lastModified": 1769820239,
+        "narHash": "sha256-1J42SI3pfBRXDtZ5gOzG/CbM0wCeczX0inq9JmZHAvE=",
+        "owner": "input-output-hk",
+        "repo": "hackage.nix",
+        "rev": "6d5018203bd633bb8c2c81504e672845a5e88320",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "input-output-hk",
+        "repo": "hackage.nix",
+        "type": "github"
+      }
+    },
+    "hackage-for-stackage": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1769819484,
+        "narHash": "sha256-MsIhv/bfr8MAVf5ypKSFVofVoK3UL3t8N1PfNqqwuyg=",
+        "owner": "input-output-hk",
+        "repo": "hackage.nix",
+        "rev": "dc715cfc9786c7fe743d309b7f5d873b666f357a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "ref": "for-stackage",
+        "repo": "hackage.nix",
+        "type": "github"
+      }
+    },
+    "hackage-internal": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1750307553,
+        "narHash": "sha256-iiafNoeLHwlSLQTyvy8nPe2t6g5AV4PPcpMeH/2/DLs=",
+        "owner": "input-output-hk",
+        "repo": "hackage.nix",
+        "rev": "f7867baa8817fab296528f4a4ec39d1c7c4da4f3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "repo": "hackage.nix",
+        "type": "github"
+      }
+    },
+    "haskellNix": {
+      "inputs": {
+        "HTTP": "HTTP",
+        "cabal-32": "cabal-32",
+        "cabal-34": "cabal-34",
+        "cabal-36": "cabal-36",
+        "cardano-shell": "cardano-shell",
+        "flake-compat": "flake-compat",
+        "hackage": "hackage",
+        "hackage-for-stackage": "hackage-for-stackage",
+        "hackage-internal": "hackage-internal",
+        "hls": "hls",
+        "hls-1.10": "hls-1.10",
+        "hls-2.0": "hls-2.0",
+        "hls-2.10": "hls-2.10",
+        "hls-2.11": "hls-2.11",
+        "hls-2.12": "hls-2.12",
+        "hls-2.2": "hls-2.2",
+        "hls-2.3": "hls-2.3",
+        "hls-2.4": "hls-2.4",
+        "hls-2.5": "hls-2.5",
+        "hls-2.6": "hls-2.6",
+        "hls-2.7": "hls-2.7",
+        "hls-2.8": "hls-2.8",
+        "hls-2.9": "hls-2.9",
+        "hpc-coveralls": "hpc-coveralls",
+        "iserv-proxy": "iserv-proxy",
+        "nixpkgs": [
+          "haskellNix",
+          "nixpkgs-unstable"
+        ],
+        "nixpkgs-2305": "nixpkgs-2305",
+        "nixpkgs-2311": "nixpkgs-2311",
+        "nixpkgs-2405": "nixpkgs-2405",
+        "nixpkgs-2411": "nixpkgs-2411",
+        "nixpkgs-2505": "nixpkgs-2505",
+        "nixpkgs-2511": "nixpkgs-2511",
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "old-ghc-nix": "old-ghc-nix",
+        "stackage": "stackage"
+      },
+      "locked": {
+        "lastModified": 1769820751,
+        "narHash": "sha256-5awWVACKBL0S8+MYGnDVv5AHJhS7auSd4C4xZkjM+5c=",
+        "owner": "input-output-hk",
+        "repo": "haskell.nix",
+        "rev": "dc0cc7ec133d392fdd15b07275994577220cd8d5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "repo": "haskell.nix",
+        "type": "github"
+      }
+    },
+    "hls": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1741604408,
+        "narHash": "sha256-tuq3+Ip70yu89GswZ7DSINBpwRprnWnl6xDYnS4GOsc=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "682d6894c94087da5e566771f25311c47e145359",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-1.10": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1680000865,
+        "narHash": "sha256-rc7iiUAcrHxwRM/s0ErEsSPxOR3u8t7DvFeWlMycWgo=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "b08691db779f7a35ff322b71e72a12f6e3376fd9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "1.10.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.0": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1687698105,
+        "narHash": "sha256-OHXlgRzs/kuJH8q7Sxh507H+0Rb8b7VOiPAjcY9sM1k=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "783905f211ac63edf982dd1889c671653327e441",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.0.0.1",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.10": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1743069404,
+        "narHash": "sha256-q4kDFyJDDeoGqfEtrZRx4iqMVEC2MOzCToWsFY+TOzY=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "2318c61db3a01e03700bd4b05665662929b7fe8b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.10.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.11": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1747306193,
+        "narHash": "sha256-/MmtpF8+FyQlwfKHqHK05BdsxC9LHV70d/FiMM7pzBM=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "46ef4523ea4949f47f6d2752476239f1c6d806fe",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.11.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.12": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1758709460,
+        "narHash": "sha256-xkI8MIIVEVARskfWbGAgP5sHG/lyeKnkm0LIOJ19X5w=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "7d983de4fa7ff54369f6dd31444bdb9869aec83e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.12.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1693064058,
+        "narHash": "sha256-8DGIyz5GjuCFmohY6Fa79hHA/p1iIqubfJUTGQElbNk=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "b30f4b6cf5822f3112c35d14a0cba51f3fe23b85",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.2.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.3": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1695910642,
+        "narHash": "sha256-tR58doOs3DncFehHwCLczJgntyG/zlsSd7DgDgMPOkI=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "458ccdb55c9ea22cd5d13ec3051aaefb295321be",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.3.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.4": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1699862708,
+        "narHash": "sha256-YHXSkdz53zd0fYGIYOgLt6HrA0eaRJi9mXVqDgmvrjk=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "54507ef7e85fa8e9d0eb9a669832a3287ffccd57",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.4.0.1",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.5": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1701080174,
+        "narHash": "sha256-fyiR9TaHGJIIR0UmcCb73Xv9TJq3ht2ioxQ2mT7kVdc=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "27f8c3d3892e38edaef5bea3870161815c4d014c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.5.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.6": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1705325287,
+        "narHash": "sha256-+P87oLdlPyMw8Mgoul7HMWdEvWP/fNlo8jyNtwME8E8=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "6e0b342fa0327e628610f2711f8c3e4eaaa08b1e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.6.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.7": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1708965829,
+        "narHash": "sha256-LfJ+TBcBFq/XKoiNI7pc4VoHg4WmuzsFxYJ3Fu+Jf+M=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "50322b0a4aefb27adc5ec42f5055aaa8f8e38001",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.7.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.8": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1715153580,
+        "narHash": "sha256-Vi/iUt2pWyUJlo9VrYgTcbRviWE0cFO6rmGi9rmALw0=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "dd1be1beb16700de59e0d6801957290bcf956a0a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.8.0.0",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hls-2.9": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1719993701,
+        "narHash": "sha256-wy348++MiMm/xwtI9M3vVpqj2qfGgnDcZIGXw8sF1sA=",
+        "owner": "haskell",
+        "repo": "haskell-language-server",
+        "rev": "90319a7e62ab93ab65a95f8f2bcf537e34dae76a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "haskell",
+        "ref": "2.9.0.1",
+        "repo": "haskell-language-server",
+        "type": "github"
+      }
+    },
+    "hpc-coveralls": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1607498076,
+        "narHash": "sha256-8uqsEtivphgZWYeUo5RDUhp6bO9j2vaaProQxHBltQk=",
+        "owner": "sevanspowell",
+        "repo": "hpc-coveralls",
+        "rev": "14df0f7d229f4cd2e79f8eabb1a740097fdfa430",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sevanspowell",
+        "repo": "hpc-coveralls",
+        "type": "github"
+      }
+    },
+    "iserv-proxy": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1755243078,
+        "narHash": "sha256-GLbl1YaohKdpzZVJFRdcI1O1oE3F3uBer4lFv3Yy0l8=",
+        "owner": "stable-haskell",
+        "repo": "iserv-proxy",
+        "rev": "150605195cb7183a6fb7bed82f23fedf37c6f52a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "stable-haskell",
+        "ref": "iserv-syms",
+        "repo": "iserv-proxy",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2305": {
+      "locked": {
+        "lastModified": 1705033721,
+        "narHash": "sha256-K5eJHmL1/kev6WuqyqqbS1cdNnSidIZ3jeqJ7GbrYnQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a1982c92d8980a0114372973cbdfe0a307f1bdea",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-23.05-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2311": {
+      "locked": {
+        "lastModified": 1719957072,
+        "narHash": "sha256-gvFhEf5nszouwLAkT9nWsDzocUTqLWHuL++dvNjMp9I=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7144d6241f02d171d25fba3edeaf15e0f2592105",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-23.11-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2405": {
+      "locked": {
+        "lastModified": 1735564410,
+        "narHash": "sha256-HB/FA0+1gpSs8+/boEavrGJH+Eq08/R2wWNph1sM1Dg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1e7a8f391f1a490460760065fa0630b5520f9cf8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-24.05-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2411": {
+      "locked": {
+        "lastModified": 1751290243,
+        "narHash": "sha256-kNf+obkpJZWar7HZymXZbW+Rlk3HTEIMlpc6FCNz0Ds=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5ab036a8d97cb9476fbe81b09076e6e91d15e1b6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-24.11-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2505": {
+      "locked": {
+        "lastModified": 1764560356,
+        "narHash": "sha256-M5aFEFPppI4UhdOxwdmceJ9bDJC4T6C6CzCK1E2FZyo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6c8f0cca84510cc79e09ea99a299c9bc17d03cb6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-25.05-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-2511": {
+      "locked": {
+        "lastModified": 1764572236,
+        "narHash": "sha256-hLp6T/vKdrBQolpbN3EhJOKTXZYxJZPzpnoZz+fEGlE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b0924ea1889b366de6bb0018a9db70b2c43a15f8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-25.11-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1764587062,
+        "narHash": "sha256-hdFa0TAVQAQLDF31cEW3enWmBP+b592OvHs6WVe3D8k=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c1cb7d097cb250f6e1904aacd5f2ba5ffd8a49ce",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "old-ghc-nix": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1631092763,
+        "narHash": "sha256-sIKgO+z7tj4lw3u6oBZxqIhDrzSkvpHtv0Kki+lh9Fg=",
+        "owner": "angerman",
+        "repo": "old-ghc-nix",
+        "rev": "af48a7a7353e418119b6dfe3cd1463a657f342b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "angerman",
+        "ref": "master",
+        "repo": "old-ghc-nix",
+        "type": "github"
       }
     },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "haskellNix": "haskellNix",
+        "nixpkgs": [
+          "haskellNix",
+          "nixpkgs-unstable"
+        ]
+      }
+    },
+    "stackage": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1769472927,
+        "narHash": "sha256-n2Jv7dUZOrBpMRMHrUoX4eOXNIkr0kglh7opMWKU+OQ=",
+        "owner": "input-output-hk",
+        "repo": "stackage.nix",
+        "rev": "cea1fb3718c41ad56ed9edcc723a93f2fc8100f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "repo": "stackage.nix",
+        "type": "github"
       }
     },
     "systems": {
diff --git a/flake.nix b/flake.nix
index ec6c24c..9905f10 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,32 +1,51 @@
 {
-  description = "stackage-server";
-
+  # This is a template created by `hix init`
+  inputs.haskellNix.url = "github:input-output-hk/haskell.nix";
+  inputs.nixpkgs.follows = "haskellNix/nixpkgs-unstable";
   inputs.flake-utils.url = "github:numtide/flake-utils";
+  outputs = { self, nixpkgs, flake-utils, haskellNix }:
+    let
+      supportedSystems = [
+        "x86_64-linux"
+        "x86_64-darwin"
+        "aarch64-linux"
+        "aarch64-darwin"
+      ];
+    in
+      flake-utils.lib.eachSystem supportedSystems (system:
+      let
+        overlays = [ haskellNix.overlay
+          (final: _prev: {
+            hixProject =
+              final.haskell-nix.hix.project {
+                src = ./.;
+                # uncomment with your current system for `nix flake show` to work:
+                evalSystem = "x86_64-linux";
+                # Add modules configuration here
+                modules = [
+                  {
+                    # These flags are set by GHC, but are not the default!
+                    packages.directory.flags.os-string = true;
+                    packages.process.flags.os-string = true;
+                    packages.unix.flags.os-string = true;
+                  }
+                ];
+              };
+          })
+        ];
+        pkgs = import nixpkgs { inherit system overlays; inherit (haskellNix) config; };
+        flake = pkgs.hixProject.flake {};
+      in flake // {
+        legacyPackages = pkgs;
+      });
 
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem
-      (system:
-        let
-          pkgs = nixpkgs.legacyPackages.${system};
-          package = pkgs.callPackage ./package.nix {};
-        in
-        {
-          packages.default = package.app;
-          devShells.default = package.shell;
-
-          checks = {
-            # I used to put these into $out/lib, but justStaticExecutables
-            # removes that directory. Now I feel like I'm just getting lucky. So
-            # let's double check the files are there.
-            file-check = pkgs.runCommand "check-runtime-files" {} ''
-              if [ -e ${self.packages.${system}.default}/run/config/settings.yml ]; then
-                touch $out
-              else
-                2>&1 echo "Runtime files are missing"
-                exit 1
-              fi
-            '';
-          };
-        }
-      );
+  # --- Flake Local Nix Configuration ----------------------------
+  nixConfig = {
+    # This sets the flake to use the IOG nix cache.
+    # Nix should ask for permission before using it,
+    # but remove it here if you do not want it to.
+    extra-substituters = ["https://cache.iog.io"];
+    extra-trusted-public-keys = ["hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="];
+    allow-import-from-derivation = "true";
+  };
 }
diff --git a/nix/amazonka-core.nix b/nix/amazonka-core.nix
deleted file mode 100644
index aa62e68..0000000
--- a/nix/amazonka-core.nix
+++ /dev/null
@@ -1,33 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, aeson, attoparsec, base, bytestring
-, case-insensitive, conduit, conduit-extra, containers, crypton
-, data-ordlist, deepseq, fetchzip, hashable, http-client
-, http-conduit, http-types, lens, lib, memory, QuickCheck
-, quickcheck-unicode, regex-posix, resourcet, scientific, tasty
-, tasty-hunit, tasty-quickcheck, template-haskell, text, time
-, transformers, unordered-containers, xml-conduit, xml-types
-}:
-mkDerivation {
-  pname = "amazonka-core";
-  version = "2.0";
-  src = fetchzip {
-    url = "https://github.com/brendanhay/amazonka/archive/85e0289f8dc23c54b00f7f1a09845be7e032a1eb.zip";
-    sha256 = "1mgdz9b7wwc05xksczvzp2hllp7nzl4nr6as5q2fafkgxqzwwx53";
-  };
-  postUnpack = "sourceRoot+=/lib/amazonka-core; echo source root reset to $sourceRoot";
-  libraryHaskellDepends = [
-    aeson attoparsec base bytestring case-insensitive conduit
-    conduit-extra containers crypton deepseq hashable http-client
-    http-conduit http-types lens memory regex-posix resourcet
-    scientific text time transformers unordered-containers xml-conduit
-    xml-types
-  ];
-  testHaskellDepends = [
-    aeson base bytestring case-insensitive conduit data-ordlist
-    http-conduit http-types QuickCheck quickcheck-unicode tasty
-    tasty-hunit tasty-quickcheck template-haskell text time
-  ];
-  homepage = "https://github.com/brendanhay/amazonka";
-  description = "Core data types and functionality for Amazonka libraries";
-  license = lib.licenses.mpl20;
-}
diff --git a/nix/crypton-connection.nix b/nix/crypton-connection.nix
deleted file mode 100644
index 77957b9..0000000
--- a/nix/crypton-connection.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, base, basement, bytestring, containers
-, crypton-x509, crypton-x509-store, crypton-x509-system
-, crypton-x509-validation, data-default-class, lib, network, socks
-, tls
-}:
-mkDerivation {
-  pname = "crypton-connection";
-  version = "0.3.2";
-  sha256 = "208be23bc910f8e5f9431995b9c011ed376bb947d79f74c8f51a5e4ecd9e991e";
-  revision = "1";
-  editedCabalFile = "1rkana1ghppras20pgpwp2bc8dnsf8lspq90r6124jqd4ckbvx2b";
-  libraryHaskellDepends = [
-    base basement bytestring containers crypton-x509 crypton-x509-store
-    crypton-x509-system crypton-x509-validation data-default-class
-    network socks tls
-  ];
-  homepage = "https://github.com/kazu-yamamoto/crypton-connection";
-  description = "Simple and easy network connections API";
-  license = lib.licenses.bsd3;
-}
diff --git a/nix/gen-packages.sh b/nix/gen-packages.sh
deleted file mode 100755
index 3a77491..0000000
--- a/nix/gen-packages.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-
-set -Eeuo pipefail
-
-filter=${1:-.}
-
-gen () {
-    f="$(mktemp)"
-    # shellcheck disable=SC2064
-    trap "rm -f $f" EXIT
-    if grep -q "$filter" <<< "$1"; then
-        echo "Generating $1..."
-        echo "# Generated by $0" > "$f"
-        cabal2nix "$2" >> "$f" "${@:3}"
-        mv "$f" "${1}.nix"
-    else
-        echo "Skipping $1..."
-    fi
-}
-
-cd "$(dirname "$0")"
-
-gen stackage-server --hpack ../.
-
-# Has my R2 patch, which is still unreleased on 2025-01-24
-#echo "...please ignore useless error below..."
-2>/dev/null gen amazonka-core https://github.com/brendanhay/amazonka/archive/85e0289f8dc23c54b00f7f1a09845be7e032a1eb.zip --subpath lib/amazonka-core
-
-# Pinned to 5.0.18.4 to avoid accidentally regenerating hoogle files. See
-# warning in stack.yaml!
-gen hoogle cabal://hoogle-5.0.18.4
-
-# FIXME: I don't remember why this had to be patched.
-gen pantry https://github.com/commercialhaskell/pantry/archive/5df643cc1deb561d9c52a9cb6f593aba2bc4c08e.zip
-
-echo "Success!"
diff --git a/nix/hix.nix b/nix/hix.nix
new file mode 100644
index 0000000..e9e4194
--- /dev/null
+++ b/nix/hix.nix
@@ -0,0 +1,17 @@
+{pkgs, ...}: {
+  name = "stackage-server";
+  compiler-nix-name = "ghc910"; # Version of GHC to use
+
+  # Cross compilation support:
+  # crossPlatforms = p: pkgs.lib.optionals pkgs.stdenv.hostPlatform.isx86_64 ([
+  #   p.mingwW64
+  #   p.ghcjs
+  # ] ++ pkgs.lib.optionals pkgs.stdenv.hostPlatform.isLinux [
+  #   p.musl64
+  # ]);
+
+  # Tools to include in the development shell
+  shell.tools.cabal = "latest";
+  # shell.tools.hlint = "latest";
+  # shell.tools.haskell-language-server = "latest";
+}
diff --git a/nix/hoogle.nix b/nix/hoogle.nix
deleted file mode 100644
index 4dc5de7..0000000
--- a/nix/hoogle.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, aeson, base, binary, blaze-html, blaze-markup
-, bytestring, cmdargs, conduit, conduit-extra, containers
-, crypton-connection, deepseq, directory, extra, filepath
-, foundation, hashable, haskell-src-exts, http-conduit, http-types
-, js-flot, js-jquery, lib, mmap, old-locale, process-extras
-, QuickCheck, resourcet, safe, storable-tuple, tar
-, template-haskell, text, time, transformers, uniplate, utf8-string
-, vector, wai, wai-logger, warp, warp-tls, zlib
-}:
-mkDerivation {
-  pname = "hoogle";
-  version = "5.0.18.4";
-  sha256 = "9d0f2de39821d14e8a436d5fda3523e789258b8041f02dd655f0e37d5013e323";
-  revision = "1";
-  editedCabalFile = "1129flhhb1992rijw46dclvmpqlylmbrzl4swsnk2knylx6jgw5a";
-  isLibrary = true;
-  isExecutable = true;
-  enableSeparateDataOutput = true;
-  libraryHaskellDepends = [
-    aeson base binary blaze-html blaze-markup bytestring cmdargs
-    conduit conduit-extra containers crypton-connection deepseq
-    directory extra filepath foundation hashable haskell-src-exts
-    http-conduit http-types js-flot js-jquery mmap old-locale
-    process-extras QuickCheck resourcet safe storable-tuple tar
-    template-haskell text time transformers uniplate utf8-string vector
-    wai wai-logger warp warp-tls zlib
-  ];
-  executableHaskellDepends = [ base ];
-  testTarget = "--test-option=--no-net";
-  homepage = "https://hoogle.haskell.org/";
-  description = "Haskell API Search";
-  license = lib.licenses.bsd3;
-  mainProgram = "hoogle";
-}
diff --git a/nix/pantry.nix b/nix/pantry.nix
deleted file mode 100644
index 5c938c9..0000000
--- a/nix/pantry.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, aeson, ansi-terminal, base, bytestring, Cabal
-, casa-client, casa-types, conduit, conduit-extra, containers
-, cryptonite, cryptonite-conduit, digest, exceptions, fetchzip
-, filelock, generic-deriving, hackage-security, hedgehog, hpack
-, hspec, http-client, http-client-tls, http-conduit, http-download
-, http-types, lib, memory, mtl, network-uri, path, path-io
-, persistent, persistent-sqlite, persistent-template, primitive
-, QuickCheck, raw-strings-qq, resourcet, rio, rio-orphans
-, rio-prettyprint, tar-conduit, text, text-metrics, time
-, transformers, unix-compat, unliftio, unordered-containers, vector
-, yaml, zip-archive
-}:
-mkDerivation {
-  pname = "pantry";
-  version = "0.5.7";
-  src = fetchzip {
-    url = "https://github.com/commercialhaskell/pantry/archive/5df643cc1deb561d9c52a9cb6f593aba2bc4c08e.zip";
-    sha256 = "15m9ggg5jf30c1lxi0wgn76savrarwr2khzcd1rpnprdq3jnppzs";
-  };
-  libraryHaskellDepends = [
-    aeson ansi-terminal base bytestring Cabal casa-client casa-types
-    conduit conduit-extra containers cryptonite cryptonite-conduit
-    digest filelock generic-deriving hackage-security hpack http-client
-    http-client-tls http-conduit http-download http-types memory mtl
-    network-uri path path-io persistent persistent-sqlite
-    persistent-template primitive resourcet rio rio-orphans
-    rio-prettyprint tar-conduit text text-metrics time transformers
-    unix-compat unliftio unordered-containers vector yaml zip-archive
-  ];
-  testHaskellDepends = [
-    aeson ansi-terminal base bytestring Cabal casa-client casa-types
-    conduit conduit-extra containers cryptonite cryptonite-conduit
-    digest exceptions filelock generic-deriving hackage-security
-    hedgehog hpack hspec http-client http-client-tls http-conduit
-    http-download http-types memory mtl network-uri path path-io
-    persistent persistent-sqlite persistent-template primitive
-    QuickCheck raw-strings-qq resourcet rio rio-orphans rio-prettyprint
-    tar-conduit text text-metrics time transformers unix-compat
-    unliftio unordered-containers vector yaml zip-archive
-  ];
-  homepage = "https://github.com/commercialhaskell/pantry#readme";
-  description = "Content addressable Haskell package management";
-  license = lib.licenses.bsd3;
-}
diff --git a/nix/safe.nix b/nix/safe.nix
deleted file mode 100644
index 8cbd86e..0000000
--- a/nix/safe.nix
+++ /dev/null
@@ -1,12 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, base, deepseq, lib, QuickCheck }:
-mkDerivation {
-  pname = "safe";
-  version = "0.3.20";
-  sha256 = "ba9983610f9004a2ab67f5ddf11c9dff34f753b9fe11259f1ff77c2f3166df24";
-  libraryHaskellDepends = [ base ];
-  testHaskellDepends = [ base deepseq QuickCheck ];
-  homepage = "https://github.com/ndmitchell/safe#readme";
-  description = "Library of safe (exception free) functions";
-  license = lib.licenses.bsd3;
-}
diff --git a/nix/stackage-server.nix b/nix/stackage-server.nix
deleted file mode 100644
index 860f420..0000000
--- a/nix/stackage-server.nix
+++ /dev/null
@@ -1,77 +0,0 @@
-# Generated by ./gen-packages.sh
-{ mkDerivation, aeson, amazonka, amazonka-core, amazonka-s3
-, auto-update, barrier, base, blaze-html, blaze-markup, bytestring
-, Cabal, casa-client, classy-prelude, classy-prelude-conduit
-, classy-prelude-yesod, cmark-gfm, conduit, conduit-extra
-, containers, deepseq, directory, email-validate, esqueleto
-, exceptions, fast-logger, file-embed, filepath, formatting, gauge
-, ghc-prim, haddock-library, hashable, hoogle, hpack, html-conduit
-, http-client, http-conduit, http-types, lens, lib, monad-logger
-, mono-traversable, mtl, optparse-applicative, pantry, path
-, path-io, path-pieces, persistent, persistent-postgresql
-, persistent-sqlite, persistent-template, process, resource-pool
-, resourcet, retry, rio, shakespeare, streaming-commons
-, tar-conduit, template-haskell, text, these, transformers
-, unliftio, unordered-containers, wai, wai-extra, wai-logger, warp
-, xml-conduit, xml-types, yaml, yesod, yesod-auth, yesod-core
-, yesod-form, yesod-gitrepo, yesod-gitrev, yesod-newsfeed
-, yesod-sitemap, yesod-static, zlib
-}:
-mkDerivation {
-  pname = "stackage-server";
-  version = "0.0.0";
-  src = ../.;
-  isLibrary = true;
-  isExecutable = true;
-  libraryHaskellDepends = [
-    aeson amazonka amazonka-core amazonka-s3 auto-update barrier base
-    blaze-html blaze-markup bytestring Cabal classy-prelude
-    classy-prelude-conduit classy-prelude-yesod cmark-gfm conduit
-    conduit-extra containers deepseq directory email-validate esqueleto
-    exceptions fast-logger file-embed filepath formatting ghc-prim
-    haddock-library hashable hoogle html-conduit http-client
-    http-conduit http-types lens monad-logger mono-traversable mtl
-    pantry path path-pieces persistent persistent-postgresql
-    persistent-sqlite persistent-template process resource-pool
-    resourcet retry rio shakespeare streaming-commons tar-conduit
-    template-haskell text these transformers unliftio
-    unordered-containers wai wai-extra wai-logger warp xml-conduit
-    xml-types yaml yesod yesod-auth yesod-core yesod-form yesod-gitrepo
-    yesod-gitrev yesod-newsfeed yesod-sitemap yesod-static zlib
-  ];
-  libraryToolDepends = [ hpack ];
-  executableHaskellDepends = [
-    aeson amazonka amazonka-core amazonka-s3 auto-update barrier base
-    blaze-html blaze-markup bytestring Cabal classy-prelude
-    classy-prelude-conduit classy-prelude-yesod cmark-gfm conduit
-    conduit-extra containers deepseq directory email-validate esqueleto
-    exceptions fast-logger file-embed filepath formatting ghc-prim
-    haddock-library hashable hoogle html-conduit http-client
-    http-conduit http-types lens monad-logger mono-traversable mtl
-    optparse-applicative pantry path path-pieces persistent
-    persistent-postgresql persistent-sqlite persistent-template process
-    resource-pool resourcet retry rio shakespeare streaming-commons
-    tar-conduit template-haskell text these transformers unliftio
-    unordered-containers wai wai-extra wai-logger warp xml-conduit
-    xml-types yaml yesod yesod-auth yesod-core yesod-form yesod-gitrepo
-    yesod-gitrev yesod-newsfeed yesod-sitemap yesod-static zlib
-  ];
-  benchmarkHaskellDepends = [
-    aeson amazonka amazonka-core amazonka-s3 auto-update barrier base
-    blaze-html blaze-markup bytestring Cabal casa-client classy-prelude
-    classy-prelude-conduit classy-prelude-yesod cmark-gfm conduit
-    conduit-extra containers deepseq directory email-validate esqueleto
-    exceptions fast-logger file-embed filepath formatting gauge
-    ghc-prim haddock-library hashable hoogle html-conduit http-client
-    http-conduit http-types lens monad-logger mono-traversable mtl
-    pantry path path-io path-pieces persistent persistent-postgresql
-    persistent-sqlite persistent-template process resource-pool
-    resourcet retry rio shakespeare streaming-commons tar-conduit
-    template-haskell text these transformers unliftio
-    unordered-containers wai wai-extra wai-logger warp xml-conduit
-    xml-types yaml yesod yesod-auth yesod-core yesod-form yesod-gitrepo
-    yesod-gitrev yesod-newsfeed yesod-sitemap yesod-static zlib
-  ];
-  prePatch = "hpack";
-  license = lib.licenses.mit;
-}
diff --git a/nix/tls.nix b/nix/tls.nix
deleted file mode 100644
index eb0c12c..0000000
--- a/nix/tls.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-# Generated by ./gen-package-nix.sh
-{ mkDerivation, asn1-encoding, asn1-types, async, base, bytestring
-, cereal, crypton, crypton-x509, crypton-x509-store
-, crypton-x509-validation, data-default-class, gauge, hourglass
-, lib, memory, mtl, network, QuickCheck, tasty, tasty-quickcheck
-, transformers, unix-time
-}:
-mkDerivation {
-  pname = "tls";
-  version = "1.8.0";
-  sha256 = "4a8486df3f1bd865753e7ac5f89bb252401fb91c8350226285e1075a78919808";
-  libraryHaskellDepends = [
-    asn1-encoding asn1-types async base bytestring cereal crypton
-    crypton-x509 crypton-x509-store crypton-x509-validation
-    data-default-class memory mtl network transformers unix-time
-  ];
-  testHaskellDepends = [
-    asn1-types async base bytestring crypton crypton-x509
-    crypton-x509-validation data-default-class hourglass QuickCheck
-    tasty tasty-quickcheck
-  ];
-  benchmarkHaskellDepends = [
-    asn1-types async base bytestring crypton crypton-x509
-    crypton-x509-validation data-default-class gauge hourglass
-    QuickCheck tasty-quickcheck
-  ];
-  homepage = "https://github.com/haskell-tls/hs-tls";
-  description = "TLS/SSL protocol native implementation (Server and Client)";
-  license = lib.licenses.bsd3;
-}
diff --git a/package.nix b/package.nix
deleted file mode 100644
index d00005d..0000000
--- a/package.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{ pkgs }:
-
-let
-  hlib = pkgs.haskell.lib;
-  hpkgs = pkgs.haskellPackages.override {
-    overrides = self: super: {
-
-      stackage-server = hlib.overrideCabal (self.callPackage nix/stackage-server.nix { }) (old: {
-        preConfigure = ''
-          ${pkgs.hpack}/bin/hpack .
-        '';
-        # During build, static files are generated into the source tree's
-        # static/ dir. Plus, config/ is needed at runtime.
-        postInstall = ''
-          mkdir -p $out/run
-          cp -a {static,config} $out/run
-        '';
-        src = pkgs.lib.cleanSource old.src;
-      });
-
-      # patched, see gen-package-nix.sh
-      amazonka-core = self.callPackage nix/amazonka-core.nix { };
-
-      # We have this old dependency for unexplored reasons.
-      # Tests fail from attempted network access.
-      pantry = pkgs.lib.pipe (self.callPackage nix/pantry.nix { }) [hlib.dontCheck hlib.doJailbreak];
-
-      # Changing this has operational impacts.
-      hoogle = self.callPackage nix/hoogle.nix { };
-
-      # Outdated breakage? (TODO: upstream)
-      barrier = hlib.markUnbroken super.barrier;
-
-      # Tests fail from attempted network access (TODO: upstream)
-      yesod-gitrev = hlib.markUnbroken (hlib.dontCheck super.yesod-gitrev);
-    };
-  };
-in
-{
-  app = hlib.justStaticExecutables hpkgs.stackage-server;
-  shell = hpkgs.shellFor {
-    packages = p: [ p.stackage-server ];
-    buildInputs = [ pkgs.cabal-install pkgs.haskell-language-server pkgs.ghcid pkgs.haskellPackages.yesod-bin pkgs.postgresql ];
-  };
-}
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
index 8cb1fc7..0000000
--- a/shell.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-(import (
-  fetchGit {
-    url = "https://github.com/edolstra/flake-compat";
-  }
-) {
-  src =  ./.;
-}).shellNix