Run ruff within local venv (otherwise required system path which did not include the venv with uv tool install).

fastapi_vue_setup.py

@@ -42,7 +42,7 @@ def ruff_sort_imports(files: list[Path], dry_run: bool = False) -> None:
         return
     print("🔧 Ruff isort on modified files")
     subprocess.run(
-        ["ruff", "check", "--select", "I", "--fix", *py_files],
+        [sys.executable, "-m", "ruff", "check", "--select", "I", "--fix", *py_files],
         stdout=subprocess.DEVNULL,
     )
 
@@ -842,7 +842,9 @@ def patch_frontend_health_check(frontend_dir: Path, dry_run: bool = False) -> bo
 
 # SHA-256 of old vite-plugin-fastapi.js (before auto-upgrade marker was added)
 # with module name replaced by MODULE_NAME in the outDir path
-_OLD_VITE_PLUGIN_SHA256 = "93713e879c15a25c750a70ce1de684adeaf11b0c723c38da56e5e7ba207f6632"
+_OLD_VITE_PLUGIN_SHA256 = (
+    "93713e879c15a25c750a70ce1de684adeaf11b0c723c38da56e5e7ba207f6632"
+)
 
 
 def _upgrade_old_vite_plugin(
@@ -861,7 +863,9 @@ def _upgrade_old_vite_plugin(
         return  # Already new format, write_file handles it
     import hashlib
 
-    normalized = content.replace(f"../{module_name}/frontend-build", "../MODULE_NAME/frontend-build")
+    normalized = content.replace(
+        f"../{module_name}/frontend-build", "../MODULE_NAME/frontend-build"
+    )
     digest = hashlib.sha256(normalized.encode()).hexdigest()
     if digest != _OLD_VITE_PLUGIN_SHA256:
         return  # Modified by user, don't touch

template/backend/__main__.py

@@ -17,11 +17,12 @@ def main():
         help=(f"Endpoint (default: localhost:{DEFAULT_PORT})."),
     )
     args = parser.parse_args()
+    dev = {"reload": True, "reload_dirs": ["MODULE_NAME"]}
     server.run(
         "MODULE_NAME.APP_MODULE:APP_VAR",
         listen=args.listen,
         default_port=DEFAULT_PORT,
-        reload=DEVMODE,
+        **(dev if DEVMODE else {}),
     )
 
 

template/scripts/fastapi-vue/devutil.py

@@ -207,10 +207,5 @@ def setup_cli(
     host = endpoints[0]["host"]
     port = endpoints[0]["port"]
 
-    cmd = [
+    cmd = [cli, f"--listen={host}:{port}"]
-        sys.executable,
-        "-m",
-        cli,
-        f"--listen={host}:{port}",
-    ]
     return f"http://{host}:{port}", cmd