diff --git a/flake.lock b/flake.lock
index 41843961..29c4559e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -729,22 +729,6 @@
         "type": "github"
       }
     },
-    "HTTP_27": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1451647621,
-        "narHash": "sha256-oHIyw3x0iKBexEo49YeUDV1k74ZtyYKGR2gNJXXRxts=",
-        "owner": "phadej",
-        "repo": "HTTP",
-        "rev": "9bc0996d412fef1787449d841277ef663ad9a915",
-        "type": "github"
-      },
-      "original": {
-        "owner": "phadej",
-        "repo": "HTTP",
-        "type": "github"
-      }
-    },
     "HTTP_3": {
       "flake": false,
       "locked": {
@@ -1746,23 +1730,6 @@
         "type": "github"
       }
     },
-    "cabal-32_27": {
-      "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-32_3": {
       "flake": false,
       "locked": {
@@ -2205,23 +2172,6 @@
         "type": "github"
       }
     },
-    "cabal-34_27": {
-      "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-34_3": {
       "flake": false,
       "locked": {
@@ -2664,23 +2614,6 @@
         "type": "github"
       }
     },
-    "cabal-36_27": {
-      "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"
-      }
-    },
     "cabal-36_3": {
       "flake": false,
       "locked": {
@@ -3593,22 +3526,6 @@
         "type": "github"
       }
     },
-    "cardano-shell_27": {
-      "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"
-      }
-    },
     "cardano-shell_3": {
       "flake": false,
       "locked": {
@@ -6002,23 +5919,6 @@
       }
     },
     "flake-compat_65": {
-      "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-compat_66": {
       "flake": false,
       "locked": {
         "lastModified": 1696426674,
@@ -8394,23 +8294,6 @@
         "type": "github"
       }
     },
-    "ghc-8.6.5-iohk_27": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1600920045,
-        "narHash": "sha256-DO6kxJz248djebZLpSzTGD6s8WRpNI9BTwUeOf5RwY8=",
-        "owner": "input-output-hk",
-        "repo": "ghc",
-        "rev": "95713a6ecce4551240da7c96b6176f980af75cae",
-        "type": "github"
-      },
-      "original": {
-        "owner": "input-output-hk",
-        "ref": "release/8.6.5-iohk",
-        "repo": "ghc",
-        "type": "github"
-      }
-    },
     "ghc-8.6.5-iohk_3": {
       "flake": false,
       "locked": {
@@ -8720,25 +8603,6 @@
         "url": "https://gitlab.haskell.org/ghc/ghc"
       }
     },
-    "ghc98X_19": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1696643148,
-        "narHash": "sha256-E02DfgISH7EvvNAu0BHiPvl1E5FGMDi0pWdNZtIBC9I=",
-        "ref": "ghc-9.8",
-        "rev": "443e870d977b1ab6fc05f47a9a17bc49296adbd6",
-        "revCount": 61642,
-        "submodules": true,
-        "type": "git",
-        "url": "https://gitlab.haskell.org/ghc/ghc"
-      },
-      "original": {
-        "ref": "ghc-9.8",
-        "submodules": true,
-        "type": "git",
-        "url": "https://gitlab.haskell.org/ghc/ghc"
-      }
-    },
     "ghc98X_2": {
       "flake": false,
       "locked": {
@@ -9071,24 +8935,6 @@
         "url": "https://gitlab.haskell.org/ghc/ghc"
       }
     },
-    "ghc99_19": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1701580282,
-        "narHash": "sha256-drA01r3JrXnkKyzI+owMZGxX0JameMzjK0W5jJE/+V4=",
-        "ref": "refs/heads/master",
-        "rev": "f5eb0f2982e9cf27515e892c4bdf634bcfb28459",
-        "revCount": 62197,
-        "submodules": true,
-        "type": "git",
-        "url": "https://gitlab.haskell.org/ghc/ghc"
-      },
-      "original": {
-        "submodules": true,
-        "type": "git",
-        "url": "https://gitlab.haskell.org/ghc/ghc"
-      }
-    },
     "ghc99_2": {
       "flake": false,
       "locked": {
@@ -10166,22 +10012,6 @@
         "type": "github"
       }
     },
-    "hackage_21": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1706401491,
-        "narHash": "sha256-UR9U45S9ISuuHYTUmoApJuCDi6+BNJFk18bJoRYY2qI=",
-        "owner": "input-output-hk",
-        "repo": "hackage.nix",
-        "rev": "5969e45d359a9a8d06036343f67f949993e19edb",
-        "type": "github"
-      },
-      "original": {
-        "owner": "input-output-hk",
-        "repo": "hackage.nix",
-        "type": "github"
-      }
-    },
     "hackage_3": {
       "flake": false,
       "locked": {
@@ -11041,59 +10871,6 @@
         "type": "github"
       }
     },
-    "haskell-nix_21": {
-      "inputs": {
-        "HTTP": "HTTP_27",
-        "cabal-32": "cabal-32_27",
-        "cabal-34": "cabal-34_27",
-        "cabal-36": "cabal-36_27",
-        "cardano-shell": "cardano-shell_27",
-        "flake-compat": "flake-compat_65",
-        "ghc-8.6.5-iohk": "ghc-8.6.5-iohk_27",
-        "ghc98X": "ghc98X_19",
-        "ghc99": "ghc99_19",
-        "hackage": "hackage_21",
-        "hls-1.10": "hls-1.10_24",
-        "hls-2.0": "hls-2.0_19",
-        "hls-2.2": "hls-2.2_19",
-        "hls-2.3": "hls-2.3_19",
-        "hls-2.4": "hls-2.4_19",
-        "hls-2.5": "hls-2.5_8",
-        "hls-2.6": "hls-2.6_8",
-        "hpc-coveralls": "hpc-coveralls_27",
-        "hydra": "hydra_27",
-        "iserv-proxy": "iserv-proxy_24",
-        "nix-tools-static": "nix-tools-static_7",
-        "nixpkgs": [
-          "proto-nix",
-          "haskell-nix",
-          "nixpkgs-unstable"
-        ],
-        "nixpkgs-2003": "nixpkgs-2003_27",
-        "nixpkgs-2105": "nixpkgs-2105_27",
-        "nixpkgs-2111": "nixpkgs-2111_27",
-        "nixpkgs-2205": "nixpkgs-2205_24",
-        "nixpkgs-2211": "nixpkgs-2211_24",
-        "nixpkgs-2305": "nixpkgs-2305_19",
-        "nixpkgs-2311": "nixpkgs-2311_16",
-        "nixpkgs-unstable": "nixpkgs-unstable_27",
-        "old-ghc-nix": "old-ghc-nix_27",
-        "stackage": "stackage_27"
-      },
-      "locked": {
-        "lastModified": 1706499740,
-        "narHash": "sha256-ljznNeW2E+iSkCm5gX52EzX+rEgC4CDe39M191fib4U=",
-        "owner": "input-output-hk",
-        "repo": "haskell.nix",
-        "rev": "6eaafcdf04bab7be745d1aa4f74d2cc85700042b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "input-output-hk",
-        "repo": "haskell.nix",
-        "type": "github"
-      }
-    },
     "haskell-nix_3": {
       "inputs": {
         "HTTP": "HTTP_5",
@@ -11818,7 +11595,7 @@
     "hci-effects_11": {
       "inputs": {
         "flake-parts": "flake-parts_28",
-        "nixpkgs": "nixpkgs_121"
+        "nixpkgs": "nixpkgs_120"
       },
       "locked": {
         "lastModified": 1704029560,
@@ -12350,23 +12127,6 @@
         "type": "github"
       }
     },
-    "hls-1.10_24": {
-      "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-1.10_3": {
       "flake": false,
       "locked": {
@@ -12656,23 +12416,6 @@
         "type": "github"
       }
     },
-    "hls-2.0_19": {
-      "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-2.0_2": {
       "flake": false,
       "locked": {
@@ -12979,23 +12722,6 @@
         "type": "github"
       }
     },
-    "hls-2.2_19": {
-      "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-2.2_2": {
       "flake": false,
       "locked": {
@@ -13302,23 +13028,6 @@
         "type": "github"
       }
     },
-    "hls-2.3_19": {
-      "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-2.3_2": {
       "flake": false,
       "locked": {
@@ -13625,7 +13334,7 @@
         "type": "github"
       }
     },
-    "hls-2.4_19": {
+    "hls-2.4_2": {
       "flake": false,
       "locked": {
         "lastModified": 1699862708,
@@ -13642,31 +13351,14 @@
         "type": "github"
       }
     },
-    "hls-2.4_2": {
+    "hls-2.4_3": {
       "flake": false,
       "locked": {
-        "lastModified": 1699862708,
-        "narHash": "sha256-YHXSkdz53zd0fYGIYOgLt6HrA0eaRJi9mXVqDgmvrjk=",
+        "lastModified": 1696939266,
+        "narHash": "sha256-VOMf5+kyOeOmfXTHlv4LNFJuDGa7G3pDnOxtzYR40IU=",
         "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-2.4_3": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1696939266,
-        "narHash": "sha256-VOMf5+kyOeOmfXTHlv4LNFJuDGa7G3pDnOxtzYR40IU=",
-        "owner": "haskell",
-        "repo": "haskell-language-server",
-        "rev": "362fdd1293efb4b82410b676ab1273479f6d17ee",
+        "rev": "362fdd1293efb4b82410b676ab1273479f6d17ee",
         "type": "github"
       },
       "original": {
@@ -13897,23 +13589,6 @@
         "type": "github"
       }
     },
-    "hls-2.5_8": {
-      "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": {
@@ -14033,23 +13708,6 @@
         "type": "github"
       }
     },
-    "hls-2.6_8": {
-      "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"
-      }
-    },
     "hpc-coveralls": {
       "flake": false,
       "locked": {
@@ -14354,22 +14012,6 @@
         "type": "github"
       }
     },
-    "hpc-coveralls_27": {
-      "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"
-      }
-    },
     "hpc-coveralls_3": {
       "flake": false,
       "locked": {
@@ -15028,30 +14670,6 @@
         "type": "indirect"
       }
     },
-    "hydra_27": {
-      "inputs": {
-        "nix": "nix_27",
-        "nixpkgs": [
-          "proto-nix",
-          "haskell-nix",
-          "hydra",
-          "nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1671755331,
-        "narHash": "sha256-hXsgJj0Cy0ZiCiYdW2OdBz5WmFyOMKuw4zyxKpgUKm4=",
-        "owner": "NixOS",
-        "repo": "hydra",
-        "rev": "f48f00ee6d5727ae3e488cbf9ce157460853fea8",
-        "type": "github"
-      },
-      "original": {
-        "id": "hydra",
-        "type": "indirect"
-      }
-    },
     "hydra_3": {
       "inputs": {
         "nix": "nix_3",
@@ -16779,23 +16397,6 @@
         "url": "https://gitlab.haskell.org/hamishmack/iserv-proxy.git"
       }
     },
-    "iserv-proxy_24": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1691634696,
-        "narHash": "sha256-MZH2NznKC/gbgBu8NgIibtSUZeJ00HTLJ0PlWKCBHb0=",
-        "ref": "hkm/remote-iserv",
-        "rev": "43a979272d9addc29fbffc2e8542c5d96e993d73",
-        "revCount": 14,
-        "type": "git",
-        "url": "https://gitlab.haskell.org/hamishmack/iserv-proxy.git"
-      },
-      "original": {
-        "ref": "hkm/remote-iserv",
-        "type": "git",
-        "url": "https://gitlab.haskell.org/hamishmack/iserv-proxy.git"
-      }
-    },
     "iserv-proxy_3": {
       "flake": false,
       "locked": {
@@ -17414,22 +17015,6 @@
         "type": "github"
       }
     },
-    "lowdown-src_27": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1633514407,
-        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
-        "owner": "kristapsdz",
-        "repo": "lowdown",
-        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
-        "type": "github"
-      },
-      "original": {
-        "owner": "kristapsdz",
-        "repo": "lowdown",
-        "type": "github"
-      }
-    },
     "lowdown-src_3": {
       "flake": false,
       "locked": {
@@ -18140,23 +17725,6 @@
         "type": "github"
       }
     },
-    "nix-tools-static_7": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1706266250,
-        "narHash": "sha256-9t+GRk3eO9muCtKdNAwBtNBZ5dH1xHcnS17WaQyftwA=",
-        "owner": "input-output-hk",
-        "repo": "haskell-nix-example",
-        "rev": "580cb6db546a7777dad3b9c0fa487a366c045c4e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "input-output-hk",
-        "ref": "nix",
-        "repo": "haskell-nix-example",
-        "type": "github"
-      }
-    },
     "nix-tools_2": {
       "flake": false,
       "locked": {
@@ -18909,27 +18477,6 @@
         "type": "github"
       }
     },
-    "nix_27": {
-      "inputs": {
-        "lowdown-src": "lowdown-src_27",
-        "nixpkgs": "nixpkgs_120",
-        "nixpkgs-regression": "nixpkgs-regression_27"
-      },
-      "locked": {
-        "lastModified": 1661606874,
-        "narHash": "sha256-9+rpYzI+SmxJn+EbYxjGv68Ucp22bdFUSy/4LkHkkDQ=",
-        "owner": "NixOS",
-        "repo": "nix",
-        "rev": "11e45768b34fdafdcf019ddbd337afa16127ff0f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "2.11.0",
-        "repo": "nix",
-        "type": "github"
-      }
-    },
     "nix_3": {
       "inputs": {
         "lowdown-src": "lowdown-src_3",
@@ -19652,22 +19199,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2003_27": {
-      "locked": {
-        "lastModified": 1620055814,
-        "narHash": "sha256-8LEHoYSJiL901bTMVatq+rf8y7QtWuZhwwpKE2fyaRY=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "1db42b7fe3878f3f5f7a4f2dc210772fd080e205",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-20.03-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2003_3": {
       "locked": {
         "lastModified": 1620055814,
@@ -20084,22 +19615,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2105_27": {
-      "locked": {
-        "lastModified": 1659914493,
-        "narHash": "sha256-lkA5X3VNMKirvA+SUzvEhfA7XquWLci+CGi505YFAIs=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "022caabb5f2265ad4006c1fa5b1ebe69fb0c3faf",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-21.05-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2105_3": {
       "locked": {
         "lastModified": 1645296114,
@@ -20516,22 +20031,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2111_27": {
-      "locked": {
-        "lastModified": 1659446231,
-        "narHash": "sha256-hekabNdTdgR/iLsgce5TGWmfIDZ86qjPhxDg/8TlzhE=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "eabc38219184cc3e04a974fe31857d8e0eac098d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-21.11-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2111_3": {
       "locked": {
         "lastModified": 1648744337,
@@ -20900,22 +20399,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2205_24": {
-      "locked": {
-        "lastModified": 1685573264,
-        "narHash": "sha256-Zffu01pONhs/pqH07cjlF10NnMDLok8ix5Uk4rhOnZQ=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "380be19fbd2d9079f677978361792cb25e8a3635",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-22.05-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2205_3": {
       "locked": {
         "lastModified": 1682600000,
@@ -21284,22 +20767,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2211_24": {
-      "locked": {
-        "lastModified": 1688392541,
-        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-22.11-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2211_3": {
       "locked": {
         "lastModified": 1682682915,
@@ -21572,22 +21039,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2305_19": {
-      "locked": {
-        "lastModified": 1701362232,
-        "narHash": "sha256-GVdzxL0lhEadqs3hfRLuj+L1OJFGiL/L7gCcelgBlsw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "d2332963662edffacfddfad59ff4f709dde80ffe",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-23.05-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2305_2": {
       "locked": {
         "lastModified": 1701362232,
@@ -21828,22 +21279,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-2311_16": {
-      "locked": {
-        "lastModified": 1701386440,
-        "narHash": "sha256-xI0uQ9E7JbmEy/v8kR9ZQan6389rHug+zOtZeZFiDJk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "293822e55ec1872f715a66d0eda9e592dc14419f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-23.11-darwin",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-2311_2": {
       "locked": {
         "lastModified": 1701386440,
@@ -22508,22 +21943,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-regression_27": {
-      "locked": {
-        "lastModified": 1643052045,
-        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
-        "type": "github"
-      }
-    },
     "nixpkgs-regression_3": {
       "locked": {
         "lastModified": 1643052045,
@@ -23419,22 +22838,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-unstable_27": {
-      "locked": {
-        "lastModified": 1694822471,
-        "narHash": "sha256-6fSDCj++lZVMZlyqOe9SIOL8tYSBz1bI8acwovRwoX8=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "47585496bcb13fb72e4a90daeea2f434e2501998",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "47585496bcb13fb72e4a90daeea2f434e2501998",
-        "type": "github"
-      }
-    },
     "nixpkgs-unstable_3": {
       "locked": {
         "lastModified": 1648219316,
@@ -23913,22 +23316,6 @@
       }
     },
     "nixpkgs_120": {
-      "locked": {
-        "lastModified": 1657693803,
-        "narHash": "sha256-G++2CJ9u0E7NNTAi9n5G8TdDmGJXcIjkJ3NF8cetQB8=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "365e1b3a859281cf11b94f87231adeabbdd878a2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-22.05-small",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_121": {
       "locked": {
         "lastModified": 1703637592,
         "narHash": "sha256-8MXjxU0RfFfzl57Zy3OfXCITS0qWDNLzlBAdwxGZwfY=",
@@ -23944,22 +23331,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_122": {
-      "locked": {
-        "lastModified": 1706522777,
-        "narHash": "sha256-xQ43gN2qNCUZ7PX1IrRsOAWT2OIRTXnIZ2IYmvT8c5c=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df2f1a85106a52596eaf152dfcd9225bf674dcf2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_123": {
+    "nixpkgs_121": {
       "locked": {
         "lastModified": 1704842529,
         "narHash": "sha256-OTeQA+F8d/Evad33JMfuXC89VMetQbsU4qcaePchGr4=",
@@ -26086,23 +25458,6 @@
         "type": "github"
       }
     },
-    "old-ghc-nix_27": {
-      "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"
-      }
-    },
     "old-ghc-nix_3": {
       "flake": false,
       "locked": {
@@ -27118,10 +26473,10 @@
     },
     "pre-commit-hooks_8": {
       "inputs": {
-        "flake-compat": "flake-compat_66",
+        "flake-compat": "flake-compat_65",
         "flake-utils": "flake-utils_77",
         "gitignore": "gitignore_21",
-        "nixpkgs": "nixpkgs_123",
+        "nixpkgs": "nixpkgs_121",
         "nixpkgs-stable": "nixpkgs-stable_30"
       },
       "locked": {
@@ -27225,10 +26580,15 @@
     "proto-nix_2": {
       "inputs": {
         "flake-parts": "flake-parts_27",
-        "haskell-nix": "haskell-nix_21",
+        "haskell-nix": [
+          "flake-lang",
+          "haskell-nix"
+        ],
         "hci-effects": "hci-effects_11",
         "http2-grpc-native": "http2-grpc-native_2",
-        "nixpkgs": "nixpkgs_122",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
         "pre-commit-hooks": "pre-commit-hooks_8",
         "protobuf": "protobuf_2"
       },
@@ -28571,22 +27931,6 @@
         "type": "github"
       }
     },
-    "stackage_27": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1706314134,
-        "narHash": "sha256-g8648uTYn0XaO1Yk8wkdJ97rs7PGBX12Rgcgdt8VehM=",
-        "owner": "input-output-hk",
-        "repo": "stackage.nix",
-        "rev": "f47d6931f01aac57a824c6dc039f56f076a73236",
-        "type": "github"
-      },
-      "original": {
-        "owner": "input-output-hk",
-        "repo": "stackage.nix",
-        "type": "github"
-      }
-    },
     "stackage_3": {
       "flake": false,
       "locked": {
diff --git a/flake.nix b/flake.nix
index 4ce8c127..792c091c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,11 @@
     hci-effects.follows = "flake-lang/hci-effects";
 
     # Nix library for Google Protobufs
-    proto-nix.url = "github:mlabs-haskell/proto.nix";
+    proto-nix = {
+      url = "github:mlabs-haskell/proto.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.haskell-nix.follows = "flake-lang/haskell-nix";
+    };
 
     # Cardano transaction library (leveraging CTL's Purescript Nix machinery)
     ctl.follows = "flake-lang/ctl";