Removed old perl from flake. cleaned up library just a little bit. added some message parsing

flake.nix

@@ -9,35 +9,12 @@
     system = "x86_64-linux";
     pkgs = nixpkgs.legacyPackages.${system};
   in {
-    packages.${system}.default = let
-      pP = pkgs.perlPackages;
-    in
-      pkgs.perlPackages.buildPerlPackage rec {
-        pname = "SignControl";
-        version = "0.1";
-
-        src = ./.;
-
-        propagatedBuildInputs = [pP.DigestCRC pP.ModuleBuild];
-        nativeBuildInputs = [pkgs.shortenPerlShebang];
-
-        postInstall = ''
-          shortenPerlShebang $out/bin/signcontrol
-        '';
-      };
     devShells.${system}.default =
       pkgs.mkShell
       {
         nativeBuildInputs = [
-          (pkgs.perl.withPackages
-            (x: [
-              x.DigestCRC
-              x.ModuleBuild
-            ]))
-
           pkgs.entr
-
-          (pkgs.python3.withPackages (x: [x.crc]))
+          (pkgs.python3.withPackages (x: [x.crc x.fastapi]))
         ];
       };
   };