initial commit

flake.nix

@@ -0,0 +1,52 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-25.05";
+  };
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      supported-systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+      forAllSystems =
+        f:
+        nixpkgs.lib.genAttrs supported-systems (
+          system:
+          f rec {
+            pkgs = nixpkgs.legacyPackages.${system};
+            inherit system;
+          }
+        );
+    in
+    {
+      # https://yannipapandreou.github.io/posts/jupyter-kernels-nix/index.html
+      devShells = forAllSystems (
+        { pkgs, ... }:
+        {
+          default = pkgs.mkShellNoCC {
+            packages =
+              let
+                pythonPackages =
+                  ps: with ps; [
+                    ipykernel
+                    jupyterlab
+                    matplotlib
+                    numpy
+                  ];
+                pythonEnv = pkgs.python3.withPackages pythonPackages;
+              in
+              [
+                pythonEnv
+              ];
+            shellHook = ''
+              echo "Jupyter with Python kernel is ready. Run: 'jupyter lab' to launch."
+            '';
+          };
+        }
+      );
+
+      formatter = forAllSystems ({ pkgs, ... }: pkgs.nixfmt-rfc-style);
+    };
+}