initial working proof of concept

flake.nix

@@ -0,0 +1,49 @@
+{
+  description = "PLACEHOLDER";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    poetry2nix-lib = {
+      url = "github:nix-community/poetry2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    poetry2nix-lib,
+  }: let
+    supportedSystems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
+    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+    pkgs = forAllSystems (system: nixpkgs.legacyPackages.${system});
+    poetry2nix = forAllSystems (system: poetry2nix-lib.lib.mkPoetry2Nix {pkgs = pkgs.${system};});
+  in {
+    # `nix build`
+    packages = forAllSystems (system: {
+      default = poetry2nix.${system}.mkPoetryApplication {
+        projectDir = self;
+      };
+    });
+
+    # `nix fmt`
+    formatter = forAllSystems (system: pkgs.${system}.alejandra);
+
+    # `nix develop`
+    devShells = forAllSystems (system: {
+      default = let
+        poetryEnv =
+          if builtins.pathExists ./poetry.lock
+          then poetry2nix.${system}.mkPoetryEnv {projectDir = self;}
+          else null;
+      in
+        pkgs.${system}.mkShellNoCC {
+          packages = with pkgs.${system};
+            [
+              poetry
+            ]
+            ++ [poetryEnv];
+        };
+    });
+  };
+}