Thinking a bit out loud here about a possible interface for lock files (cross post from #pyproject.nix:blad.is ):

{ lib, pkgs, poetry2nix, pyproject }:
let
  # Stub attrs, not yet implemented
  pdm = { };
  overlays = { };

  # Use project abstraction from pyproject.nix
  project = pyproject.project.loadPyproject {
    pyproject = lib.importTOML ./pyproject.toml;
  };

  # Python packages overlay
  overlay = let
    # Create an overlay from pdm.lock
    pdmPackages = pdm.mkOverlay {
      pyproject = lib.importTOML ./pyproject.toml;
      pdmLock = lib.importTOML ./pdm.lock;
    };
    # Pdm.lock does not have PEP-517 build systems locked, use overrides from poetry2nix
    pdmWithBuild = overlays.intersect pdmPackages poetry2nix.overlays.build-systems;
  # Only apply build system overrides to packages that actually need them (packages created by the overlay generator)
  in overlays.intersect pdmPackages poetry2nix.build-systems;

  # Create an overriden interpreter
  python = pkgs.python3.override {
    # Note the self argument.
    # It's important so the interpreter/set is internally consistent.
    self = python;
    packageOverrides = overlay;
  };

  # Render buildPythonPackage with our overriden interpreter
  attrs = pyproject.lib.renderers.buildPythonPackage { inherit python project; };

in python.pkgs.buildPythonPackage attrs

The same idea, but a bit more formed:

{ lib, pkgs, poetry2nix, pyproject }:
let
  # Stub attrs, not yet implemented
  pdm = {
    mkOverlay = { ... }: throw "Not implemented";
  };
  overlays = {
    # Return overlay `a` with `b` applied, but only with intersecting keys.
    # This is useful when filtering
    intersect = a: b: throw "Not implemented";

    # Return overlay filtered by predicate
    filter = pred: overlay: throw "Not implemented";
  };

  # Use project abstraction from pyproject.nix
  project = pyproject.project.loadPyproject {
    pyproject = lib.importTOML ./pyproject.toml;
  };

  # Python packages overlay
  overlay = let
    # Create an overlay from pdm.lock
    pdmPackages = pdm.mkOverlay {
      pyproject = lib.importTOML ./pyproject.toml;
      pdmLock = lib.importTOML ./pdm.lock;
    };

    # Use nixpkgs definitions whenever possible, only overlay missing packages
    onlyPdm = overlays.filter (pname: overriden: ! lib.hasAttr pname pkgs.python3.pkgs) pdmPackages;

    # Pdm.lock does not have PEP-517 build systems locked, use overrides from poetry2nix
    pdmWithBuild = overlays.intersect onlyPdm poetry2nix.overlays.build-systems;
  in pdmWithBuild;

  # Create an overriden interpreter
  python = pkgs.python3.override {
    # Note the self argument.
    # It's important so the interpreter/set is internally consistent.
    self = python;
    packageOverrides = overlay;
  };

  # Render buildPythonPackage with our overriden interpreter
  attrs = pyproject.lib.renderers.buildPythonPackage { inherit python project; };

in python.pkgs.buildPythonPackage attrs

The same idea, but a bit more formed:

{ lib, pkgs, poetry2nix, pyproject }:
let
  # Stub attrs, not yet implemented
  pdm = {
    mkOverlay = { ... }: throw "Not implemented";
  };
  overlays = {
    # Return overlay `a` with `b` applied, but only with intersecting keys.
    intersect = a: b: throw "Not implemented";

    # Return overlay filtered by predicate
    filter = pred: overlay: throw "Not implemented";
  };

  # Use project abstraction from pyproject.nix
  project = pyproject.project.loadPyproject {
    pyproject = lib.importTOML ./pyproject.toml;
  };

  # Python packages overlay
  overlay = let
    # Create an overlay from pdm.lock
    pdmPackages = pdm.mkOverlay {
      pyproject = lib.importTOML ./pyproject.toml;
      pdmLock = lib.importTOML ./pdm.lock;
    };

    # Use nixpkgs definitions whenever possible, only overlay missing packages
    onlyPdm = overlays.filter (pname: overriden: ! lib.hasAttr pname pkgs.python3.pkgs) pdmPackages;

    # Pdm.lock does not have PEP-517 build systems locked, use overrides from poetry2nix
    pdmWithBuild = overlays.intersect onlyPdm poetry2nix.overlays.build-systems;
  in pdmWithBuild;

  # Create an overriden interpreter
  python = pkgs.python3.override {
    # Note the self argument.
    # It's important so the interpreter/set is internally consistent.
    self = python;
    packageOverrides = overlay;
  };

  # Render buildPythonPackage with our overriden interpreter
  attrs = pyproject.lib.renderers.buildPythonPackage { inherit python project; };

in python.pkgs.buildPythonPackage attrs

{
  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
  inputs.poetry2nix = {
    url = "github:sciyoshi/poetry2nix/master";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        inherit (poetry2nix.legacyPackages.${system}) mkPoetryEnv;

        projectPath =  builtins.path { path = ./.; name = "shark3d-deployment"; };
        pkgs = nixpkgs.legacyPackages.${system};
        deployment = mkPoetryEnv {
          python = pkgs.python311;
          projectDir = projectPath;
          editablePackageSources = {
            deployment = projectPath;
          };
        };
      in
      {
        devShells.default = deployment.env.overrideAttrs (oldAttrs: {
            buildInputs = [ pkgs.kubectl pkgs.pulumi-bin ];
        });
      });
}

{
  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
  inputs.poetry2nix = {
    url = "github:sciyoshi/poetry2nix/master";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        inherit (poetry2nix.legacyPackages.${system}) mkPoetryEnv;

        projectPath =  builtins.path { path = ./.; name = "shark3d-deployment"; };
        pkgs = nixpkgs.legacyPackages.${system};
        deployment = mkPoetryEnv {
          python = pkgs.python311;
          projectDir = projectPath;
          editablePackageSources = {
            deployment = projectPath;
          };
        };
      in
      {
        devShells.default = deployment.env.overrideAttrs (oldAttrs: {
            buildInputs = [ pkgs.kubectl pkgs.pulumi-bin ];
        });
      });
}

nix develop
warning: Git tree '/home/jonaa/git/deployment' is dirty
error: list index 2 is out of bounds

       at /nix/store/dqxnzhmh5xq79508f9h6rg11jqy9nnmv-source/shell-scripts.nix:10:12:

            9|       module = elem 0;
           10|       fn = elem 2;
             |            ^
           11|     in
(use '--show-trace' to show detailed location information)

not sure what this means

{
  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
  inputs.poetry2nix = {
    url = "github:sciyoshi/poetry2nix/master";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        inherit (poetry2nix.legacyPackages.${system}) mkPoetryEnv;

        projectPath =  builtins.path { path = ./.; name = "shark3d-deployment"; };
        pkgs = nixpkgs.legacyPackages.${system};
        deployment = mkPoetryEnv {
          python = pkgs.python311;
          projectDir = projectPath;
          editablePackageSources = {
            deployment = projectPath;
          };
        };
      in
      {
        devShells.default = deployment.env.overrideAttrs (oldAttrs: {
            buildInputs = [ pkgs.kubectl pkgs.pulumi-bin ];
        });
      });
}

nix develop
warning: Git tree '/home/jonaa/git/deployment' is dirty
error: list index 2 is out of bounds

       at /nix/store/dqxnzhmh5xq79508f9h6rg11jqy9nnmv-source/shell-scripts.nix:10:12:

            9|       module = elem 0;
           10|       fn = elem 2;
             |            ^
           11|     in
(use '--show-trace' to show detailed location information)

not sure what this means

this works:

#pyproject.toml
[tool.poetry.scripts]
deploy_cluster_aws = "deploy_cluster_aws:main"

while this doesn't

#pyproject.toml
[tool.poetry.scripts]
deploy_cluster_aws = { reference = "deploy_cluster_aws", extras = ["aws"], type="console" }

but should be valid, no?
https://python-poetry.org/docs/pyproject/#scripts

$ nix develop
warning: Git tree '/home/jonaa/git/deployment' is dirty
error: value is a set while a string was expected

       at /nix/store/knlmp0ljafmp1k4fkf61jdhia6l9kw1q-source/shell-scripts.nix:8:31:

            7|     let
            8|       elem = builtins.elemAt (builtins.split ":" entrypoint);
             |                               ^
            9|       module = elem 0;
(use '--show-trace' to show detailed location information)

In reply to @k900:0upti.me
Your build does nothing