diff --git a/biome.json b/biome.json
index 7b4c6a10..b170dcc5 100644
--- a/biome.json
+++ b/biome.json
@@ -4,8 +4,8 @@
     "includes": [
       "host/client_app/**",
       "packages/**",
-      "modules/*/src/*/pages/**",
-      "modules/*/src/*/components/**"
+      "modules/*/*/pages/**",
+      "modules/*/*/components/**"
     ],
     "ignoreUnknown": true
   },
diff --git a/framework/core/src/simple_module_core/__init__.py b/framework/core/simple_module_core/__init__.py
similarity index 100%
rename from framework/core/src/simple_module_core/__init__.py
rename to framework/core/simple_module_core/__init__.py
diff --git a/framework/core/src/simple_module_core/diagnostics.py b/framework/core/simple_module_core/diagnostics.py
similarity index 98%
rename from framework/core/src/simple_module_core/diagnostics.py
rename to framework/core/simple_module_core/diagnostics.py
index 28309415..4ed3eb9d 100644
--- a/framework/core/src/simple_module_core/diagnostics.py
+++ b/framework/core/simple_module_core/diagnostics.py
@@ -228,7 +228,10 @@ def _find_package_dir(self, package_name: str) -> Path | None:
         return None
 
     def _check_orphan_pages(
-        self, mod: ModuleBase, src_dir: Path, rendered_pages: set[str],
+        self,
+        mod: ModuleBase,
+        src_dir: Path,
+        rendered_pages: set[str],
     ) -> list[Diagnostic]:
         """Find .tsx pages that aren't referenced by any inertia.render() call."""
         pages_dir = src_dir / "pages"
@@ -251,7 +254,10 @@ def _check_orphan_pages(
         ]
 
     def _check_phantom_renders(
-        self, mod: ModuleBase, src_dir: Path, rendered_pages: set[str],
+        self,
+        mod: ModuleBase,
+        src_dir: Path,
+        rendered_pages: set[str],
     ) -> list[Diagnostic]:
         """Find inertia.render() calls that reference non-existent pages."""
         pages_dir = src_dir / "pages"
diff --git a/framework/core/src/simple_module_core/discovery.py b/framework/core/simple_module_core/discovery.py
similarity index 100%
rename from framework/core/src/simple_module_core/discovery.py
rename to framework/core/simple_module_core/discovery.py
diff --git a/framework/core/src/simple_module_core/events.py b/framework/core/simple_module_core/events.py
similarity index 100%
rename from framework/core/src/simple_module_core/events.py
rename to framework/core/simple_module_core/events.py
diff --git a/framework/core/src/simple_module_core/exceptions.py b/framework/core/simple_module_core/exceptions.py
similarity index 100%
rename from framework/core/src/simple_module_core/exceptions.py
rename to framework/core/simple_module_core/exceptions.py
diff --git a/framework/core/src/simple_module_core/feature_flags.py b/framework/core/simple_module_core/feature_flags.py
similarity index 100%
rename from framework/core/src/simple_module_core/feature_flags.py
rename to framework/core/simple_module_core/feature_flags.py
diff --git a/framework/core/src/simple_module_core/health.py b/framework/core/simple_module_core/health.py
similarity index 100%
rename from framework/core/src/simple_module_core/health.py
rename to framework/core/simple_module_core/health.py
diff --git a/framework/core/src/simple_module_core/menu.py b/framework/core/simple_module_core/menu.py
similarity index 100%
rename from framework/core/src/simple_module_core/menu.py
rename to framework/core/simple_module_core/menu.py
diff --git a/framework/core/src/simple_module_core/module.py b/framework/core/simple_module_core/module.py
similarity index 100%
rename from framework/core/src/simple_module_core/module.py
rename to framework/core/simple_module_core/module.py
diff --git a/framework/core/src/simple_module_core/permissions.py b/framework/core/simple_module_core/permissions.py
similarity index 100%
rename from framework/core/src/simple_module_core/permissions.py
rename to framework/core/simple_module_core/permissions.py
diff --git a/framework/core/src/simple_module_core/py.typed b/framework/core/simple_module_core/py.typed
similarity index 100%
rename from framework/core/src/simple_module_core/py.typed
rename to framework/core/simple_module_core/py.typed
diff --git a/framework/db/src/simple_module_db/__init__.py b/framework/db/simple_module_db/__init__.py
similarity index 100%
rename from framework/db/src/simple_module_db/__init__.py
rename to framework/db/simple_module_db/__init__.py
diff --git a/framework/db/src/simple_module_db/base.py b/framework/db/simple_module_db/base.py
similarity index 100%
rename from framework/db/src/simple_module_db/base.py
rename to framework/db/simple_module_db/base.py
diff --git a/framework/db/src/simple_module_db/deps.py b/framework/db/simple_module_db/deps.py
similarity index 100%
rename from framework/db/src/simple_module_db/deps.py
rename to framework/db/simple_module_db/deps.py
diff --git a/framework/db/src/simple_module_db/listeners.py b/framework/db/simple_module_db/listeners.py
similarity index 100%
rename from framework/db/src/simple_module_db/listeners.py
rename to framework/db/simple_module_db/listeners.py
diff --git a/framework/db/src/simple_module_db/mixins.py b/framework/db/simple_module_db/mixins.py
similarity index 100%
rename from framework/db/src/simple_module_db/mixins.py
rename to framework/db/simple_module_db/mixins.py
diff --git a/framework/db/src/simple_module_db/provider.py b/framework/db/simple_module_db/provider.py
similarity index 100%
rename from framework/db/src/simple_module_db/provider.py
rename to framework/db/simple_module_db/provider.py
diff --git a/framework/db/src/simple_module_db/py.typed b/framework/db/simple_module_db/py.typed
similarity index 100%
rename from framework/db/src/simple_module_db/py.typed
rename to framework/db/simple_module_db/py.typed
diff --git a/framework/db/src/simple_module_db/session.py b/framework/db/simple_module_db/session.py
similarity index 100%
rename from framework/db/src/simple_module_db/session.py
rename to framework/db/simple_module_db/session.py
diff --git a/framework/hosting/src/simple_module_hosting/__init__.py b/framework/hosting/simple_module_hosting/__init__.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/__init__.py
rename to framework/hosting/simple_module_hosting/__init__.py
diff --git a/framework/hosting/src/simple_module_hosting/app_builder.py b/framework/hosting/simple_module_hosting/app_builder.py
similarity index 96%
rename from framework/hosting/src/simple_module_hosting/app_builder.py
rename to framework/hosting/simple_module_hosting/app_builder.py
index dc4c06d5..7daf3667 100644
--- a/framework/hosting/src/simple_module_hosting/app_builder.py
+++ b/framework/hosting/simple_module_hosting/app_builder.py
@@ -3,14 +3,13 @@
 from __future__ import annotations
 
 import logging
-import os
 from collections.abc import AsyncGenerator
 from contextlib import asynccontextmanager
+from pathlib import Path
 
 from fastapi import APIRouter, FastAPI, Request
 from fastapi.exceptions import HTTPException
 from fastapi.staticfiles import StaticFiles
-from starlette.responses import RedirectResponse
 from inertia import (
     InertiaConfig,
     InertiaVersionConflictException,
@@ -31,6 +30,7 @@
 from simple_module_db.listeners import register_listeners
 from simple_module_db.session import init_db
 from starlette.middleware.sessions import SessionMiddleware
+from starlette.responses import RedirectResponse
 
 from simple_module_hosting.health import router as health_router
 from simple_module_hosting.middleware import InertiaLayoutDataMiddleware, SecurityHeadersMiddleware
@@ -38,6 +38,9 @@
 
 logger = logging.getLogger(__name__)
 
+# Resolve once: simple_module_hosting/ -> hosting/ -> framework/ -> project root
+_PROJECT_ROOT = Path(__file__).resolve().parents[3]
+
 
 async def _check_migrations(engine, alembic_ini_path: str = "host/alembic.ini") -> dict:
     """Check database migration state. Raises RuntimeError if not at head.
@@ -237,8 +240,8 @@ async def _handle_http_exception(request: Request, exc: HTTPException) -> Redire
 
     app.include_router(health_router)
 
-    static_dir = os.path.join(os.path.dirname(__file__), "..", "..", "..", "..", "host", "static")
-    if os.path.isdir(static_dir):
+    static_dir = _PROJECT_ROOT / "host" / "static"
+    if static_dir.is_dir():
         app.mount("/static", StaticFiles(directory=static_dir), name="static")
 
     return app
@@ -246,17 +249,11 @@ async def _handle_http_exception(request: Request, exc: HTTPException) -> Redire
 
 def _setup_inertia(app: FastAPI, settings: Settings) -> None:
     """Configure fastapi-inertia with the Jinja2 template."""
-    import os
-
     from fastapi.templating import Jinja2Templates
 
-    # Find the templates directory (relative to host/)
-    templates_dir = os.path.join(
-        os.path.dirname(__file__), "..", "..", "..", "..", "host", "templates"
-    )
-    templates_dir = os.path.abspath(templates_dir)
+    templates_dir = _PROJECT_ROOT / "host" / "templates"
 
-    if not os.path.isdir(templates_dir):
+    if not templates_dir.is_dir():
         logger.warning("Templates directory not found at %s", templates_dir)
         return
 
@@ -301,4 +298,3 @@ def _check_settings_registration(modules: list, added_keys: set[str]) -> None:
                 ),
             )
             logger.warning("%s", diag)
-
diff --git a/framework/hosting/src/simple_module_hosting/health.py b/framework/hosting/simple_module_hosting/health.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/health.py
rename to framework/hosting/simple_module_hosting/health.py
diff --git a/framework/hosting/src/simple_module_hosting/inertia_deps.py b/framework/hosting/simple_module_hosting/inertia_deps.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/inertia_deps.py
rename to framework/hosting/simple_module_hosting/inertia_deps.py
diff --git a/framework/hosting/src/simple_module_hosting/inertia_utils.py b/framework/hosting/simple_module_hosting/inertia_utils.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/inertia_utils.py
rename to framework/hosting/simple_module_hosting/inertia_utils.py
diff --git a/framework/hosting/src/simple_module_hosting/middleware.py b/framework/hosting/simple_module_hosting/middleware.py
similarity index 99%
rename from framework/hosting/src/simple_module_hosting/middleware.py
rename to framework/hosting/simple_module_hosting/middleware.py
index 2c2f3020..c6263dcb 100644
--- a/framework/hosting/src/simple_module_hosting/middleware.py
+++ b/framework/hosting/simple_module_hosting/middleware.py
@@ -5,11 +5,12 @@
 import secrets
 from typing import TYPE_CHECKING
 
-from simple_module_hosting.permissions import expand_permissions, resolve_permissions
 from starlette.middleware.base import BaseHTTPMiddleware, RequestResponseEndpoint
 from starlette.requests import Request
 from starlette.responses import Response
 
+from simple_module_hosting.permissions import expand_permissions, resolve_permissions
+
 if TYPE_CHECKING:
     from simple_module_core.menu import MenuRegistry
     from simple_module_core.permissions import PermissionRegistry
diff --git a/framework/hosting/src/simple_module_hosting/permissions.py b/framework/hosting/simple_module_hosting/permissions.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/permissions.py
rename to framework/hosting/simple_module_hosting/permissions.py
diff --git a/framework/hosting/src/simple_module_hosting/py.typed b/framework/hosting/simple_module_hosting/py.typed
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/py.typed
rename to framework/hosting/simple_module_hosting/py.typed
diff --git a/framework/hosting/src/simple_module_hosting/settings.py b/framework/hosting/simple_module_hosting/settings.py
similarity index 100%
rename from framework/hosting/src/simple_module_hosting/settings.py
rename to framework/hosting/simple_module_hosting/settings.py
diff --git a/host/client_app/pages.ts b/host/client_app/pages.ts
index 9d9a5151..66ab050f 100644
--- a/host/client_app/pages.ts
+++ b/host/client_app/pages.ts
@@ -1,7 +1,7 @@
 /**
  * Auto-discover all module pages via Vite's import.meta.glob.
  *
- * Convention: modules/{name}/src/sm_{name}/pages/{PageName}.tsx
+ * Convention: modules/{name}/sm_{name}/pages/{PageName}.tsx
  * Inertia component name: "{ModuleName}/{PageName}"
  *
  * Vite code-splits each page into its own chunk automatically.
@@ -11,15 +11,15 @@
 type PageModule = { default: React.ComponentType<Record<string, unknown>> };
 type PageLoader = () => Promise<PageModule>;
 
-const pageModules = import.meta.glob<PageModule>('../../modules/*/src/*/pages/*.tsx');
+const pageModules = import.meta.glob<PageModule>('../../modules/*/*/pages/*.tsx');
 
 const pages: Record<string, PageLoader> = {};
 
 for (const [filePath, loader] of Object.entries(pageModules)) {
   // Extract module name and page name from file path
-  // e.g., "../../modules/products/src/sm_products/pages/Browse.tsx"
+  // e.g., "../../modules/products/sm_products/pages/Browse.tsx"
   //   -> moduleName = "Products", pageName = "Browse"
-  const match = filePath.match(/modules\/(\w+)\/src\/\w+\/pages\/(\w+)\.tsx$/);
+  const match = filePath.match(/modules\/(\w+)\/\w+\/pages\/(\w+)\.tsx$/);
   if (match) {
     const moduleName = match[1].charAt(0).toUpperCase() + match[1].slice(1);
     const pageName = match[2];
diff --git a/host/client_app/tsconfig.json b/host/client_app/tsconfig.json
index f34b6643..5697b7b6 100644
--- a/host/client_app/tsconfig.json
+++ b/host/client_app/tsconfig.json
@@ -18,8 +18,8 @@
   "include": [
     "**/*.ts",
     "**/*.tsx",
-    "../../modules/*/src/**/*.ts",
-    "../../modules/*/src/**/*.tsx",
+    "../../modules/*/**/*.ts",
+    "../../modules/*/**/*.tsx",
     "../../packages/*/src/**/*.ts",
     "../../packages/*/src/**/*.tsx"
   ]
diff --git a/modules/auth/src/sm_auth/__init__.py b/modules/auth/sm_auth/__init__.py
similarity index 100%
rename from modules/auth/src/sm_auth/__init__.py
rename to modules/auth/sm_auth/__init__.py
diff --git a/modules/auth/src/sm_auth/contracts/__init__.py b/modules/auth/sm_auth/contracts/__init__.py
similarity index 100%
rename from modules/auth/src/sm_auth/contracts/__init__.py
rename to modules/auth/sm_auth/contracts/__init__.py
diff --git a/modules/auth/src/sm_auth/contracts/schemas.py b/modules/auth/sm_auth/contracts/schemas.py
similarity index 100%
rename from modules/auth/src/sm_auth/contracts/schemas.py
rename to modules/auth/sm_auth/contracts/schemas.py
diff --git a/modules/auth/src/sm_auth/deps.py b/modules/auth/sm_auth/deps.py
similarity index 100%
rename from modules/auth/src/sm_auth/deps.py
rename to modules/auth/sm_auth/deps.py
diff --git a/modules/auth/src/sm_auth/endpoints/__init__.py b/modules/auth/sm_auth/endpoints/__init__.py
similarity index 100%
rename from modules/auth/src/sm_auth/endpoints/__init__.py
rename to modules/auth/sm_auth/endpoints/__init__.py
diff --git a/modules/auth/src/sm_auth/endpoints/api.py b/modules/auth/sm_auth/endpoints/api.py
similarity index 100%
rename from modules/auth/src/sm_auth/endpoints/api.py
rename to modules/auth/sm_auth/endpoints/api.py
diff --git a/modules/auth/src/sm_auth/middleware.py b/modules/auth/sm_auth/middleware.py
similarity index 100%
rename from modules/auth/src/sm_auth/middleware.py
rename to modules/auth/sm_auth/middleware.py
diff --git a/modules/auth/src/sm_auth/module.py b/modules/auth/sm_auth/module.py
similarity index 100%
rename from modules/auth/src/sm_auth/module.py
rename to modules/auth/sm_auth/module.py
diff --git a/modules/auth/src/sm_auth/oauth.py b/modules/auth/sm_auth/oauth.py
similarity index 100%
rename from modules/auth/src/sm_auth/oauth.py
rename to modules/auth/sm_auth/oauth.py
diff --git a/modules/auth/src/sm_auth/py.typed b/modules/auth/sm_auth/py.typed
similarity index 100%
rename from modules/auth/src/sm_auth/py.typed
rename to modules/auth/sm_auth/py.typed
diff --git a/modules/auth/src/sm_auth/settings.py b/modules/auth/sm_auth/settings.py
similarity index 100%
rename from modules/auth/src/sm_auth/settings.py
rename to modules/auth/sm_auth/settings.py
diff --git a/modules/dashboard/src/sm_dashboard/__init__.py b/modules/dashboard/sm_dashboard/__init__.py
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/__init__.py
rename to modules/dashboard/sm_dashboard/__init__.py
diff --git a/modules/dashboard/src/sm_dashboard/endpoints/__init__.py b/modules/dashboard/sm_dashboard/endpoints/__init__.py
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/endpoints/__init__.py
rename to modules/dashboard/sm_dashboard/endpoints/__init__.py
diff --git a/modules/dashboard/src/sm_dashboard/endpoints/views.py b/modules/dashboard/sm_dashboard/endpoints/views.py
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/endpoints/views.py
rename to modules/dashboard/sm_dashboard/endpoints/views.py
diff --git a/modules/dashboard/src/sm_dashboard/module.py b/modules/dashboard/sm_dashboard/module.py
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/module.py
rename to modules/dashboard/sm_dashboard/module.py
diff --git a/modules/dashboard/src/sm_dashboard/pages/Home.tsx b/modules/dashboard/sm_dashboard/pages/Home.tsx
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/pages/Home.tsx
rename to modules/dashboard/sm_dashboard/pages/Home.tsx
diff --git a/modules/dashboard/src/sm_dashboard/pages/Landing.tsx b/modules/dashboard/sm_dashboard/pages/Landing.tsx
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/pages/Landing.tsx
rename to modules/dashboard/sm_dashboard/pages/Landing.tsx
diff --git a/modules/dashboard/src/sm_dashboard/py.typed b/modules/dashboard/sm_dashboard/py.typed
similarity index 100%
rename from modules/dashboard/src/sm_dashboard/py.typed
rename to modules/dashboard/sm_dashboard/py.typed
diff --git a/modules/products/src/sm_products/__init__.py b/modules/products/sm_products/__init__.py
similarity index 100%
rename from modules/products/src/sm_products/__init__.py
rename to modules/products/sm_products/__init__.py
diff --git a/modules/products/src/sm_products/contracts/__init__.py b/modules/products/sm_products/contracts/__init__.py
similarity index 100%
rename from modules/products/src/sm_products/contracts/__init__.py
rename to modules/products/sm_products/contracts/__init__.py
diff --git a/modules/products/src/sm_products/contracts/schemas.py b/modules/products/sm_products/contracts/schemas.py
similarity index 100%
rename from modules/products/src/sm_products/contracts/schemas.py
rename to modules/products/sm_products/contracts/schemas.py
diff --git a/modules/products/src/sm_products/contracts/service.py b/modules/products/sm_products/contracts/service.py
similarity index 100%
rename from modules/products/src/sm_products/contracts/service.py
rename to modules/products/sm_products/contracts/service.py
diff --git a/modules/products/src/sm_products/deps.py b/modules/products/sm_products/deps.py
similarity index 100%
rename from modules/products/src/sm_products/deps.py
rename to modules/products/sm_products/deps.py
diff --git a/modules/products/src/sm_products/endpoints/__init__.py b/modules/products/sm_products/endpoints/__init__.py
similarity index 100%
rename from modules/products/src/sm_products/endpoints/__init__.py
rename to modules/products/sm_products/endpoints/__init__.py
diff --git a/modules/products/src/sm_products/endpoints/api.py b/modules/products/sm_products/endpoints/api.py
similarity index 100%
rename from modules/products/src/sm_products/endpoints/api.py
rename to modules/products/sm_products/endpoints/api.py
diff --git a/modules/products/src/sm_products/endpoints/views.py b/modules/products/sm_products/endpoints/views.py
similarity index 100%
rename from modules/products/src/sm_products/endpoints/views.py
rename to modules/products/sm_products/endpoints/views.py
diff --git a/modules/products/src/sm_products/models.py b/modules/products/sm_products/models.py
similarity index 100%
rename from modules/products/src/sm_products/models.py
rename to modules/products/sm_products/models.py
diff --git a/modules/products/src/sm_products/module.py b/modules/products/sm_products/module.py
similarity index 100%
rename from modules/products/src/sm_products/module.py
rename to modules/products/sm_products/module.py
diff --git a/modules/products/src/sm_products/pages/Browse.tsx b/modules/products/sm_products/pages/Browse.tsx
similarity index 100%
rename from modules/products/src/sm_products/pages/Browse.tsx
rename to modules/products/sm_products/pages/Browse.tsx
diff --git a/modules/products/src/sm_products/pages/Create.tsx b/modules/products/sm_products/pages/Create.tsx
similarity index 100%
rename from modules/products/src/sm_products/pages/Create.tsx
rename to modules/products/sm_products/pages/Create.tsx
diff --git a/modules/products/src/sm_products/pages/Edit.tsx b/modules/products/sm_products/pages/Edit.tsx
similarity index 100%
rename from modules/products/src/sm_products/pages/Edit.tsx
rename to modules/products/sm_products/pages/Edit.tsx
diff --git a/modules/products/src/sm_products/py.typed b/modules/products/sm_products/py.typed
similarity index 100%
rename from modules/products/src/sm_products/py.typed
rename to modules/products/sm_products/py.typed
diff --git a/modules/products/src/sm_products/service.py b/modules/products/sm_products/service.py
similarity index 100%
rename from modules/products/src/sm_products/service.py
rename to modules/products/sm_products/service.py
diff --git a/modules/products/src/sm_products/validation.ts b/modules/products/sm_products/validation.ts
similarity index 100%
rename from modules/products/src/sm_products/validation.ts
rename to modules/products/sm_products/validation.ts
diff --git a/pyproject.toml b/pyproject.toml
index 5a8d3060..7ff75274 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,12 +36,12 @@ ignore = [
 
 [tool.ty.environment]
 extra-paths = [
-    "framework/core/src",
-    "framework/db/src",
-    "framework/hosting/src",
-    "modules/auth/src",
-    "modules/dashboard/src",
-    "modules/products/src",
+    "framework/core",
+    "framework/db",
+    "framework/hosting",
+    "modules/auth",
+    "modules/dashboard",
+    "modules/products",
     "host",
 ]