diff --git a/.env.example b/.env.example
index 1ef467ce0..6be877798 100644
--- a/.env.example
+++ b/.env.example
@@ -4,7 +4,7 @@ MIX_APP_NAME=Träwelling
 APP_ENV=local
 APP_KEY=
 APP_DEBUG=true
-APP_URL=http://localhost
+APP_URL=http://localhost:8000
 FORCE_HTTPS=false
 
 L5_SWAGGER_CONST_HOST=http://localhost:8000/api/v1
diff --git a/flake.nix b/flake.nix
index 51c3432e2..e1f696660 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,6 +22,8 @@
         ...
       }: {
         devenv.shells.default = {config, ...}: {
+          # See https://github.com/cachix/devenv/issues/528#issuecomment-1556108767
+          containers = lib.mkForce {};
           languages = {
             php.enable = true;
             javascript.enable = true;
@@ -49,6 +51,11 @@
             php = "${config.languages.php.package}/bin/php";
             npm = "${config.languages.javascript.package}/bin/npm";
             mysql = config.services.mysql.package;
+
+            envKeys = builtins.attrNames config.env;
+            unsetEnv = builtins.concatStringsSep "\n" (
+              map (key: "unset ${key}") envKeys
+            );
           in {
             setup-devenv.exec = ''
               set -eo pipefail
@@ -83,9 +90,16 @@
               ${php} artisan passport:install > /dev/null
             '';
             serve.exec = ''
-              APP_URL=http://localhost:8000 ${npm} run dev &
+              # Unset .env variables, so laravel reads the .env files by itself
+              ${unsetEnv}
+              ${npm} run dev &
               ${php} artisan serve
             '';
+            artisan.exec = ''
+              # Unset .env variables, so laravel reads the .env files by itself
+              ${unsetEnv}
+              exec ${php} artisan $@
+            '';
           };
         };
         formatter = pkgs.alejandra;