From c082385a7fb2f4c98e59d7642090b3096a66fc51 Mon Sep 17 00:00:00 2001
From: Sridhar Ratnakumar <srid@srid.ca>
Date: Sun, 22 May 2022 14:53:04 -0400
Subject: [PATCH] readme: mention 'nix run'

---
 README.md | 1 +
 flake.nix | 7 ++++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 86de45a..5cc06c3 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ git add . && git commit -m rename
 - Run `nix flake update` to update all flake inputs.
 - Run `treefmt` in nix shell to autoformat the project. This uses [treefmt](https://github.com/numtide/treefmt), which uses `./treefmt.toml` (where fourmolu and nixpkgs-fmt are specified).
 - Run `bin/hoogle` to start Hoogle with packages in your cabal file.
+- Run the application without installing: `nix run github:srid/haskell-template` (or `nix run .` from checkout)
 
 ## Alternatives
 
diff --git a/flake.nix b/flake.nix
index ea7c969..39edc8f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,6 +21,8 @@
     inputs.flake-utils.lib.eachDefaultSystem
       (system:
         let
+          name = "haskell-template";
+
           # Because: https://zimbatm.com/notes/1000-instances-of-nixpkgs
           pkgs = inputs.nixpkgs.legacyPackages.${system};
           inherit (pkgs.lib.lists) optionals;
@@ -46,8 +48,7 @@
             , withHoogle ? false
             }:
             hp.developPackage {
-              inherit returnShellEnv withHoogle;
-              name = "haskell-template";
+              inherit returnShellEnv withHoogle name;
               root = ./.;
               overrides = self: super: with pkgs.haskell.lib; {
                 # Use callCabal2nix to override Haskell dependencies here
@@ -74,7 +75,7 @@
           apps = {
             default = {
               type = "app";
-              program = "${inputs.self.packages.${system}.default}/bin/haskell-template";
+              program = "${inputs.self.packages.${system}.default}/bin/${name}";
             };
           };
           # Used by `nix develop ...`