add `serve-frontend`

2 files changed, 6 insertions, 2 deletions

diff --git a/README.md b/README.md
index ff9541c..f95e691 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,6 @@
 ```console
 build
 acms serve content &
-python -m http.server -d dist-newstyle/build/javascript-ghcjs/ghc-9.10.1/achat-0.1.0.0/x/frontend/build/frontend/frontend.jsexe &
+serve-frontend &
 firefox http://localhost:8000
 ```
diff --git a/default.nix b/default.nix
index 39a3bd6..f3e7e05 100644
--- a/default.nix
+++ b/default.nix
@@ -38,6 +38,7 @@ rec {
         buildInputs = [
           pkgs.haskell.packages.${ghc}.cabal-install
           pkgs.haskell.packages.${ghc}.ormolu
+          pkgs.python3
           (pkgs.writers.writeDashBin "build-frontend" ''
             set -efu
             cabal \
@@ -45,6 +46,10 @@ rec {
               --with-hc-pkg=javascript-unknown-ghcjs-ghc-pkg \
               build
           '')
+          (pkgs.writers.writeDashBin "serve-frontend" ''
+            set -efu
+            ${pkgs.python3}/bin/python -m http.server -d ${pkgs.lib.escapeShellArg (toString ./.)}dist-newstyle/build/javascript-ghcjs/ghc-9.10.1/achat-0.1.0.0/x/frontend/build/frontend/frontend.jsexe &
+          '')
           (pkgs.writers.writeDashBin "build-backend" ''
             set -efu
             cabal build
@@ -54,7 +59,6 @@ rec {
             build-frontend
             build-backend
           '')
-          pkgs.python3
         ];
         shellHook = ''
           export EM_CACHE="${toString ./.}/.emcache" # nixos/nixpkgs#282509