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index d4ecad3..9e38e8d 100644
--- a/nim/flake.lock
+++ b/nim/flake.lock
@@ -2,12 +2,12 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703013332,
-        "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
-        "rev": "54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6",
-        "revCount": 561409,
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.561409%2Brev-54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6/018c8732-ea5c-725f-a6c9-9ed48683aa5a/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/nix/flake.lock b/nix/flake.lock
index d4ecad3..9e38e8d 100644
--- a/nix/flake.lock
+++ b/nix/flake.lock
@@ -2,12 +2,12 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703013332,
-        "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
-        "rev": "54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6",
-        "revCount": 561409,
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.561409%2Brev-54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6/018c8732-ea5c-725f-a6c9-9ed48683aa5a/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/node/flake.lock b/node/flake.lock
index d4ecad3..9e38e8d 100644
--- a/node/flake.lock
+++ b/node/flake.lock
@@ -2,12 +2,12 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703013332,
-        "narHash": "sha256-+tFNwMvlXLbJZXiMHqYq77z/RfmpfpiI3yjL6o/Zo9M=",
-        "rev": "54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6",
-        "revCount": 561409,
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.561409%2Brev-54aac082a4d9bb5bbc5c4e899603abfb76a3f6d6/018c8732-ea5c-725f-a6c9-9ed48683aa5a/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/ocaml/flake.lock b/ocaml/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/ocaml/flake.lock
+++ b/ocaml/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/opa/flake.lock b/opa/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/opa/flake.lock
+++ b/opa/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/php/flake.lock b/php/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/php/flake.lock
+++ b/php/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/protobuf/flake.lock b/protobuf/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/protobuf/flake.lock
+++ b/protobuf/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/pulumi/flake.lock b/pulumi/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/pulumi/flake.lock
+++ b/pulumi/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/purescript/flake.lock b/purescript/flake.lock
index 4e78d08..c1f6032 100644
--- a/purescript/flake.lock
+++ b/purescript/flake.lock
@@ -3,11 +3,11 @@
     "easy-purescript-nix": {
       "flake": false,
       "locked": {
-        "lastModified": 1686900973,
-        "narHash": "sha256-9whTjp8BYy8ZzyghhgbawS06/dVESduME3wsdNH/mpk=",
+        "lastModified": 1696584097,
+        "narHash": "sha256-a9Hhqf/Fi0FkjRTcQr3pYDhrO9A9tdOkaeVgD23Cdrk=",
         "owner": "justinwoo",
         "repo": "easy-purescript-nix",
-        "rev": "8cf400656945b2f2bacfd6a8775792aa701f60e9",
+        "rev": "d5fe5f4b210a0e4bac42ae0c159596a49c5eb016",
         "type": "github"
       },
       "original": {
@@ -18,18 +18,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/python/flake.lock b/python/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/python/flake.lock
+++ b/python/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/ruby/flake.lock b/ruby/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/ruby/flake.lock
+++ b/ruby/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/rust-toolchain/flake.lock b/rust-toolchain/flake.lock
index 740a900..64aae1e 100644
--- a/rust-toolchain/flake.lock
+++ b/rust-toolchain/flake.lock
@@ -20,34 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "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"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
@@ -59,14 +41,16 @@
     "rust-overlay": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1689302058,
-        "narHash": "sha256-yD74lcHTrw4niXcE9goJLbzsgyce48rQQoy5jK5ZK40=",
+        "lastModified": 1705544242,
+        "narHash": "sha256-LIi5jGx7kwJjodpJlnQY+X/PZspRpbDO2ypNSmHwOGQ=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "7b8dbbf4c67ed05a9bf3d9e658c12d4108bc24c8",
+        "rev": "ff3e4b3ee418009886848d48e4ba236a2f9de789",
         "type": "github"
       },
       "original": {
diff --git a/rust-toolchain/flake.nix b/rust-toolchain/flake.nix
index 5d5cc5f..ed3f5da 100644
--- a/rust-toolchain/flake.nix
+++ b/rust-toolchain/flake.nix
@@ -2,39 +2,43 @@
   description = "A Nix-flake-based Rust development environment";
 
   inputs = {
-    inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
+    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
     rust-overlay = {
       url = "github:oxalica/rust-overlay";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
 
-  outputs = { self, nixpkgs, rust-overlay }:
-    let
-      overlays = [
-        rust-overlay.overlays.default
-        (final: prev: {
-          rustToolchain = prev.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
-        })
-      ];
-      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
-      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
-        pkgs = import nixpkgs { inherit overlays system; };
-      });
-    in
-    {
-      devShells = forEachSupportedSystem ({ pkgs }: {
-        default = pkgs.mkShell {
-          packages = with pkgs; [
-            rustToolchain
-            openssl
-            pkg-config
-            cargo-deny
-            cargo-edit
-            cargo-watch
-            rust-analyzer
-          ];
-        };
-      });
-    };
+  outputs = {
+    self,
+    nixpkgs,
+    rust-overlay,
+  }: let
+    overlays = [
+      rust-overlay.overlays.default
+      (final: prev: {
+        rustToolchain = prev.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+      })
+    ];
+    supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
+    forEachSupportedSystem = f:
+      nixpkgs.lib.genAttrs supportedSystems (system:
+        f {
+          pkgs = import nixpkgs {inherit overlays system;};
+        });
+  in {
+    devShells = forEachSupportedSystem ({pkgs}: {
+      default = pkgs.mkShell {
+        packages = with pkgs; [
+          rustToolchain
+          openssl
+          pkg-config
+          cargo-deny
+          cargo-edit
+          cargo-watch
+          rust-analyzer
+        ];
+      };
+    });
+  };
 }
diff --git a/rust/flake.lock b/rust/flake.lock
index 740a900..64aae1e 100644
--- a/rust/flake.lock
+++ b/rust/flake.lock
@@ -20,34 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "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"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
@@ -59,14 +41,16 @@
     "rust-overlay": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1689302058,
-        "narHash": "sha256-yD74lcHTrw4niXcE9goJLbzsgyce48rQQoy5jK5ZK40=",
+        "lastModified": 1705544242,
+        "narHash": "sha256-LIi5jGx7kwJjodpJlnQY+X/PZspRpbDO2ypNSmHwOGQ=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "7b8dbbf4c67ed05a9bf3d9e658c12d4108bc24c8",
+        "rev": "ff3e4b3ee418009886848d48e4ba236a2f9de789",
         "type": "github"
       },
       "original": {
diff --git a/scala/flake.lock b/scala/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/scala/flake.lock
+++ b/scala/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/shell/flake.lock b/shell/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/shell/flake.lock
+++ b/shell/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {
diff --git a/zig/flake.lock b/zig/flake.lock
index 0f56f8b..9e38e8d 100644
--- a/zig/flake.lock
+++ b/zig/flake.lock
@@ -2,18 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689261696,
-        "narHash": "sha256-LzfUtFs9MQRvIoQ3MfgSuipBVMXslMPH/vZ+nM40LkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "df1eee2aa65052a18121ed4971081576b25d6b5c",
-        "type": "github"
+        "lastModified": 1705316053,
+        "narHash": "sha256-J2Ey5mPFT8gdfL2XC0JTZvKaBw/b2pnyudEXFvl+dQM=",
+        "rev": "c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370",
+        "revCount": 571714,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.571714%2Brev-c3e128f3c0ecc1fb04aef9f72b3dcc2f6cecf370/018d13d4-6560-744b-8254-c10a7ef5adef/source.tar.gz"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
       }
     },
     "root": {