feat: add external component and some test configurations

flake.nix

@@ -0,0 +1,67 @@
+{
+  description = "EspHome Word Clock";
+  inputs = {
+    systems.url = "github:nix-systems/x86_64-linux";
+    # nixpkgs.url = "github:NixOS/nixpkgs/unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/22.11";
+    utils.url = "github:numtide/flake-utils";
+    utils.inputs.systems.follows = "systems";
+  };
+  outputs = { self, nixpkgs, utils, ... }: utils.lib.eachDefaultSystem (
+    system:
+    let pkgs = import nixpkgs { inherit system; };
+    in {
+
+      # This block here is used when running `nix develop`
+      devShells.default = pkgs.mkShell rec {
+        # Update the name to something that suites your project.
+        name = "esphome-wordclock";
+
+        # build environment dependencies
+        packages = with pkgs; [
+          esphome
+        ];
+
+        # Setting up the environment variables you need during development.
+
+        # Todo figure out why I can't use clang on Asahi but can on Darwin
+        # Use "clang++" for most systems but OSX Asahi requires g++ for some reason or a runtime error occurs
+        shellHook = let
+          # This is for an icon that is used below for the command line input below
+          icon = "f121";
+        in ''
+          export PS1="$(echo -e '\u${icon}') {\[$(tput sgr0)\]\[\033[38;5;228m\]\w\[$(tput sgr0)\]\[\033[38;5;15m\]} (${name}) \\$ \[$(tput sgr0)\]"
+          # export COMPILER="clang++"
+          #export COMPILER="g++"
+          echo "test";
+        '';
+      };
+      # This is used when running `nix build`
+      # packages.default = pkgs.llvmPackages_14.stdenv.mkDerivation rec {
+      packages.default = pkgs.esphome.stdenv.mkDerivation rec {
+        name = "esphome-wordclock";
+        version = "2.0.0";
+        src = self;
+
+        # buildInputs = [ pkgs.esphome ];
+
+        # buildPhase = "COMPILER='clang++' make";
+
+        # installPhase = ''
+        #   mkdir -p $out/bin; 
+        #   install -t $out/bin worm
+        # '';
+
+        # meta = with inputs.utils.lib; {
+        #   homepage = "https://github.com/icecreammatt/ssu-cs315-worm";
+        #   description = ''
+        #     Terminal CLI Worm Game
+        #   '';
+        # };
+      };
+      # packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello;
+
+      # packages.x86_64-linux.default = self.packages.x86_64-linux.hello;
+
+  });
+}