Make 'nix run' spin up the whole stack in one command

README.md

@@ -8,15 +8,25 @@ Two Laravel 10 apps sharing one MySQL database (`greaterc_db2024`):
 
 ## Local development
 
-Requires [Nix](https://nixos.org) with flakes (direnv optional: `.envrc` → `use flake`).
+Requires [Nix](https://nixos.org) with flakes.
 
 ```sh
-nix develop            # php 8.3 + composer + mariadb + node on PATH
-dev setup              # composer install both apps, init MariaDB under .dev/
-dev db import dump.sql # load a production dump — the article/category schema only exists in prod
-dev up                 # http://127.0.0.1:8000 (site), http://127.0.0.1:8001 (CMS); Ctrl-C stops all
+nix run                # installs vendors on first run, starts MariaDB, serves both apps; Ctrl-C stops all
 ```
 
+- site: http://127.0.0.1:8000
+- CMS:  http://127.0.0.1:8001
+
+The site's article pages need the production schema, which only exists in the prod DB:
+
+```sh
+mysqldump greaterc_db2024 > dump.sql     # on the server
+nix run . -- db import dump.sql
+```
+
+`nix run . -- <cmd>` forwards to the `dev` script; `nix develop` drops you into a shell with
+`dev`, `php`, `composer`, `mariadb`, `node` on PATH (direnv: `.envrc` → `use flake`).
+
 Other commands: `dev db start|stop|status|shell`, `dev serve frontend|backend`,
 `dev artisan <app> ...`, `dev down`. See `dev help`.