Change nix application back to package to propagate inputs

flake.nix

@@ -9,7 +9,6 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-        python = pkgs.python3.withPackages (ps: with ps; []);
         arklog = pkgs.python3Packages.buildPythonPackage rec {
           pname = "arklog";
           version = "0.5.1";
@@ -32,7 +31,7 @@
         };
       in {
         packages = rec {
-          spendpoint = pkgs.python3Packages.buildPythonApplication {
+          spendpoint = pkgs.python3Packages.buildPythonPackage {
             pname = "spendpoint";
             version = "0.4.0";
             format = "pyproject";
@@ -72,11 +71,11 @@
           };
 
           # https://discourse.nixos.org/t/basic-flake-run-existing-python-bash-script/19886/2
-          server = pkgs.writeScriptBin "run-python" ''
+          server = let python = pkgs.python3.withPackages (ps: with ps; [ spendpoint ]); in pkgs.writeScriptBin "run-python" ''
             ${python}/bin/python -m spendpoint
           '';
 
-          launchScript = pkgs.writeTextFile {
+          launchScript = let python = pkgs.python3.withPackages (ps: with ps; [ spendpoint ]); in pkgs.writeTextFile {
             name = "run.sh";
             text = ''${python}/bin/python -m spendpoint'';
             executable = true;