diff --git a/_sources/generated.json b/_sources/generated.json
new file mode 100644
index 0000000..7dbb035
--- /dev/null
+++ b/_sources/generated.json
@@ -0,0 +1,122 @@
+{
+    "curl": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "curl",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "curl",
+            "repo": "curl",
+            "rev": "curl-8_9_1",
+            "sha256": "sha256-b+Giv6n3LCjOIvUeQawR9qrMBTuz8emRRdhbb2XO5ZU=",
+            "type": "github"
+        },
+        "version": "curl-8_9_1"
+    },
+    "fmt": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "fmt",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "fmtlib",
+            "repo": "fmt",
+            "rev": "11.0.2",
+            "sha256": "sha256-IKNt4xUoVi750zBti5iJJcCk3zivTt7nU12RIf8pM+0=",
+            "type": "github"
+        },
+        "version": "11.0.2"
+    },
+    "reflect-cpp": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "reflect-cpp",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "getml",
+            "repo": "reflect-cpp",
+            "rev": "v0.13.0",
+            "sha256": "sha256-dEqdPk5ixnNILxTcdSAOhzP8fzeefMu6pqrL/WgnPlE=",
+            "type": "github"
+        },
+        "version": "v0.13.0"
+    },
+    "sdbus-cpp": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "sdbus-cpp",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "kistler-group",
+            "repo": "sdbus-cpp",
+            "rev": "v2.0.0",
+            "sha256": "sha256-W8V5FRhV3jtERMFrZ4gf30OpIQLYoj2yYGpnYOmH2+g=",
+            "type": "github"
+        },
+        "version": "v2.0.0"
+    },
+    "tomlplusplus": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "tomlplusplus",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "marzer",
+            "repo": "tomlplusplus",
+            "rev": "v3.4.0",
+            "sha256": "sha256-h5tbO0Rv2tZezY58yUbyRVpsfRjY3i+5TPkkxr6La8M=",
+            "type": "github"
+        },
+        "version": "v3.4.0"
+    },
+    "yyjson": {
+        "cargoLocks": null,
+        "date": null,
+        "extract": null,
+        "name": "yyjson",
+        "passthru": null,
+        "pinned": false,
+        "src": {
+            "deepClone": false,
+            "fetchSubmodules": false,
+            "leaveDotGit": false,
+            "name": null,
+            "owner": "ibireme",
+            "repo": "yyjson",
+            "rev": "0.10.0",
+            "sha256": "sha256-mp9Oz08qTyhj3P6F1d81SX96vamUY/JWpD2DTYR+v04=",
+            "type": "github"
+        },
+        "version": "0.10.0"
+    }
+}
\ No newline at end of file
diff --git a/_sources/generated.nix b/_sources/generated.nix
new file mode 100644
index 0000000..738696d
--- /dev/null
+++ b/_sources/generated.nix
@@ -0,0 +1,70 @@
+# This file was generated by nvfetcher, please do not modify it manually.
+{ fetchgit, fetchurl, fetchFromGitHub, dockerTools }:
+{
+  curl = {
+    pname = "curl";
+    version = "curl-8_9_1";
+    src = fetchFromGitHub {
+      owner = "curl";
+      repo = "curl";
+      rev = "curl-8_9_1";
+      fetchSubmodules = false;
+      sha256 = "sha256-b+Giv6n3LCjOIvUeQawR9qrMBTuz8emRRdhbb2XO5ZU=";
+    };
+  };
+  fmt = {
+    pname = "fmt";
+    version = "11.0.2";
+    src = fetchFromGitHub {
+      owner = "fmtlib";
+      repo = "fmt";
+      rev = "11.0.2";
+      fetchSubmodules = false;
+      sha256 = "sha256-IKNt4xUoVi750zBti5iJJcCk3zivTt7nU12RIf8pM+0=";
+    };
+  };
+  reflect-cpp = {
+    pname = "reflect-cpp";
+    version = "v0.13.0";
+    src = fetchFromGitHub {
+      owner = "getml";
+      repo = "reflect-cpp";
+      rev = "v0.13.0";
+      fetchSubmodules = false;
+      sha256 = "sha256-dEqdPk5ixnNILxTcdSAOhzP8fzeefMu6pqrL/WgnPlE=";
+    };
+  };
+  sdbus-cpp = {
+    pname = "sdbus-cpp";
+    version = "v2.0.0";
+    src = fetchFromGitHub {
+      owner = "kistler-group";
+      repo = "sdbus-cpp";
+      rev = "v2.0.0";
+      fetchSubmodules = false;
+      sha256 = "sha256-W8V5FRhV3jtERMFrZ4gf30OpIQLYoj2yYGpnYOmH2+g=";
+    };
+  };
+  tomlplusplus = {
+    pname = "tomlplusplus";
+    version = "v3.4.0";
+    src = fetchFromGitHub {
+      owner = "marzer";
+      repo = "tomlplusplus";
+      rev = "v3.4.0";
+      fetchSubmodules = false;
+      sha256 = "sha256-h5tbO0Rv2tZezY58yUbyRVpsfRjY3i+5TPkkxr6La8M=";
+    };
+  };
+  yyjson = {
+    pname = "yyjson";
+    version = "0.10.0";
+    src = fetchFromGitHub {
+      owner = "ibireme";
+      repo = "yyjson";
+      rev = "0.10.0";
+      fetchSubmodules = false;
+      sha256 = "sha256-mp9Oz08qTyhj3P6F1d81SX96vamUY/JWpD2DTYR+v04=";
+    };
+  };
+}
diff --git a/flake.nix b/flake.nix
index c0bf522..fcd9f3c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,17 +25,23 @@
           then pkgs.stdenvAdapters.useMoldLinker pkgs.llvmPackages_18.stdenv
           else pkgs.llvmPackages_18.stdenv;
 
-        reflect-cpp = stdenv.mkDerivation rec {
-          name = "reflect-cpp";
-          version = "0.13.0";
+        sources = import ./_sources/generated.nix {
+          inherit (pkgs) fetchFromGitHub fetchgit fetchurl dockerTools;
+        };
 
-          src = pkgs.fetchFromGitHub {
-            owner = "getml";
-            repo = "reflect-cpp";
-            rev = "v${version}";
-            hash = "sha256-dEqdPk5ixnNILxTcdSAOhzP8fzeefMu6pqrL/WgnPlE=";
+        mkPkg = name:
+          pkgs.pkgsStatic.${name}.overrideAttrs {
+            inherit (sources.${name}) pname version src;
           };
 
+        fmt = mkPkg "fmt";
+        sdbus-cpp = mkPkg "sdbus-cpp";
+        tomlplusplus = mkPkg "tomlplusplus";
+        yyjson = mkPkg "yyjson";
+
+        reflect-cpp = stdenv.mkDerivation {
+          inherit (sources.reflect-cpp) pname version src;
+
           nativeBuildInputs = with pkgs; [cmake ninja pkg-config];
 
           cmakeFlags = [
@@ -45,20 +51,10 @@
           ];
         };
 
-        sdbus-cpp = pkgs.sdbus-cpp.overrideAttrs rec {
-          version = "2.0.0";
-          src = pkgs.fetchFromGitHub {
-            owner = "kistler-group";
-            repo = "sdbus-cpp";
-            rev = "v${version}";
-            hash = "sha256-W8V5FRhV3jtERMFrZ4gf30OpIQLYoj2yYGpnYOmH2+g=";
-          };
-        };
-
         deps = with pkgs.pkgsStatic;
           [
             curl
-            fmt_11
+            fmt
             libiconv
             tomlplusplus
             yyjson
@@ -134,6 +130,7 @@
                 lldb
                 meson
                 ninja
+                nvfetcher
                 pkg-config
                 unzip
                 nixvim.packages.${system}.default
diff --git a/meson.build b/meson.build
index 2da64c5..074043d 100644
--- a/meson.build
+++ b/meson.build
@@ -28,6 +28,7 @@ if host_machine.system() == 'darwin'
       '-Wno-pre-c++20-compat-pedantic',
       '-Wno-switch-default',
       '-Wunused-function',
+      '-fvisibility=hidden'
     ]),
     language: 'objcpp'
   )
@@ -43,7 +44,8 @@ common_cpp_args = [
   '-Wno-padded',
   '-Wno-pre-c++20-compat-pedantic',
   '-Wno-switch-default',
-  '-Wunused-function'
+  '-Wunused-function',
+  '-fvisibility=hidden'
 ]
 
 if host_machine.system() == 'windows'
@@ -111,4 +113,3 @@ executable(
   link_args: link_args,
   dependencies: deps
 )
-
diff --git a/nvfetcher.toml b/nvfetcher.toml
new file mode 100644
index 0000000..ed810dd
--- /dev/null
+++ b/nvfetcher.toml
@@ -0,0 +1,19 @@
+[fmt]
+src.github = "fmtlib/fmt"
+fetch.github = "fmtlib/fmt"
+
+[reflect-cpp]
+src.github = "getml/reflect-cpp"
+fetch.github = "getml/reflect-cpp"
+
+[sdbus-cpp]
+src.github = "kistler-group/sdbus-cpp"
+fetch.github = "kistler-group/sdbus-cpp"
+
+[tomlplusplus]
+src.github = "marzer/tomlplusplus"
+fetch.github = "marzer/tomlplusplus"
+
+[yyjson]
+src.github = "ibireme/yyjson"
+fetch.github = "ibireme/yyjson"