Add containerless instructions to run the application

README.md

@@ -29,9 +29,17 @@ own hardware!
 
 ## DEPLOYMENT
 
-Only Nix build instructions targeting containers are provided below, 
-but this project can be built and run without containers or Nix by using Cabal.
+Only Nix build instructions are provided below.
 
+### No Containers
+1) Clone this repository
+2) Build the application (with flakes enabled): `nix build '.#'`
+3) Set the environment variables
+    - File: `cp examples/.env.example ./.env; $EDITOR ./.env`
+    - If you want to set them in a different way, you already know how.
+4) Run the application: `./result/bin/Purr`
+
+### Containers
 1) Clone this repository
 2) Build the container image (with flakes enabled): `nix build .#purr-container`
 3) Load the container image