add forecast-solar

hosts/giggles/forecast-solar.nix

@@ -0,0 +1,19 @@
+{ pkgs, python311 }:
+
+python311.pkgs.buildPythonPackage rec {
+  pname = "forecast_solar";
+  version = "3.0.0";
+  src = pkgs.fetchFromGitHub {
+    owner = "home-assistant-libs";
+    repo = "forecast_solar";
+    rev = version;
+    sha256 = "Go0DF2qyVyGVYEeoEEuxsSR9Ge8Pg4S77zM1HL83ELc=";
+  };
+
+  pythonImportsCheck = [ "pytest" "flake8" ];
+
+  propagatedBuildInputs = with python311.pkgs; [
+    pytest
+    flake8
+  ];
+}