Initial commit

flake.nix

@@ -0,0 +1,50 @@
+{
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+  outputs =
+    inputs @ { nixpkgs
+    , systems
+    , ...
+    }:
+    let
+      inherit (nixpkgs) lib;
+      eachSystem = lib.genAttrs (import systems);
+      pkgsFor = eachSystem (system:
+        import nixpkgs {
+          localSystem = system;
+        });
+    in
+    {
+      devShells =
+        eachSystem
+          (system: {
+            default =
+              let
+                pkgs = pkgsFor.${system};
+                pico-sdk = pkgs.pico-sdk.override {
+                  withSubmodules = true;
+                };
+                PICO_SDK_PATH = "${pico-sdk}/lib/pico-sdk";
+              in
+              pkgs.mkShell {
+                name = "PicoVGA dev shell";
+                inputsFrom = [ pico-sdk ];
+                packages = with pkgs;
+                  [
+                    gcc-arm-embedded
+                    python3
+
+                    usbutils
+                    picotool
+                  ]
+                  ++ [ pico-sdk ];
+
+                shellHook = ''
+                  ln -sf ${PICO_SDK_PATH}/external/pico_sdk_import.cmake pico_sdk_import.cmake
+                '';
+
+                inherit PICO_SDK_PATH;
+              };
+          });
+    };
+}