diff --git a/src/materia/app/app.py b/src/materia/app/app.py
index 1e78f7f..bedf8b4 100644
--- a/src/materia/app/app.py
+++ b/src/materia/app/app.py
@@ -5,6 +5,7 @@ from typing import AsyncIterator, TypedDict, Self, Optional
 
 import uvicorn
 from fastapi import FastAPI
+from fastapi.routing import APIRoute
 from fastapi.middleware.cors import CORSMiddleware
 from materia.core import (
     Config,
@@ -15,6 +16,7 @@ from materia.core import (
     Cron,
 )
 from materia import routers
+from materia.core.misc import optional, optional_string
 
 
 class Context(TypedDict):
@@ -57,7 +59,7 @@ class Application:
             await app.prepare_database()
             await app.prepare_cache()
             await app.prepare_cron()
-            await app.prepare_server()
+            app.prepare_server()
         except Exception as e:
             app.logger.error(" ".join(e.args))
             sys.exit()
@@ -99,7 +101,7 @@ class Application:
             self.config.cron.workers_count, backend_url=url, broker_url=url
         )
 
-    async def prepare_server(self):
+    def prepare_server(self):
         @asynccontextmanager
         async def lifespan(app: FastAPI) -> AsyncIterator[Context]:
             yield Context(
@@ -129,6 +131,13 @@ class Application:
         self.backend.include_router(routers.resources.router)
         self.backend.include_router(routers.root.router)
 
+        for route in self.backend.routes:
+            if isinstance(route, APIRoute):
+                route.operation_id = (
+                    optional_string(optional(route.tags.__getitem__, 0), "{}_")
+                    + route.name
+                )
+
     async def start(self):
         self.logger.info(f"Spinning up cron workers [{self.config.cron.workers_count}]")
         self.cron.run_workers()
diff --git a/src/materia/app/cli.py b/src/materia/app/cli.py
index e5e83f9..0d506f8 100644
--- a/src/materia/app/cli.py
+++ b/src/materia/app/cli.py
@@ -5,6 +5,7 @@ from materia.core.config import Config
 from materia.core.logging import Logger
 from materia.app import Application
 import asyncio
+import json
 
 
 @click.group()
@@ -112,5 +113,36 @@ def config_check(path: Path):
         logger.info("OK.")
 
 
+@cli.group()
+def export():
+    pass
+
+
+@export.command("openapi", help="Export an OpenAPI specification.")
+@click.option(
+    "--path",
+    "-p",
+    type=Path,
+    default=Path.cwd().joinpath("openapi.json"),
+    help="Path to the file.",
+)
+def export_openapi(path: Path):
+    path = path.resolve()
+    logger = Logger.new()
+    config = Config()
+    app = Application(config)
+    app.prepare_server()
+
+    logger.info("Writing file at {}", path)
+
+    try:
+        with open(path, "w") as io:
+            json.dump(app.backend.openapi(), io, sort_keys=False)
+    except Exception as e:
+        logger.error("{}", e)
+
+    logger.info("All done.")
+
+
 if __name__ == "__main__":
     cli()
diff --git a/src/materia/core/cron.py b/src/materia/core/cron.py
index 756eb28..e189e64 100644
--- a/src/materia/core/cron.py
+++ b/src/materia/core/cron.py
@@ -34,10 +34,14 @@ class Cron:
     ):
         cron = Cron(
             workers_count,
+            # TODO: change log level
+            # TODO: exclude pickle
+            # TODO: disable startup banner
             Celery(
                 "cron",
                 backend=backend_url,
                 broker=broker_url,
+                broker_connection_retry_on_startup=True,
                 task_serializer="pickle",
                 accept_content=["pickle", "json"],
                 **kwargs,
diff --git a/src/materia/routers/api/file.py b/src/materia/routers/api/file.py
index e78e8de..dd1df10 100644
--- a/src/materia/routers/api/file.py
+++ b/src/materia/routers/api/file.py
@@ -68,7 +68,23 @@ class FileSizeValidator:
             raise HTTPException(status.HTTP_413_REQUEST_ENTITY_TOO_LARGE)
 
 
-@router.post("/file")
+@router.post("/file", openapi_extra={
+    "requestBody" : {
+        "content": {
+            "multipart/form-data": {
+                "schema": {
+                    "required": ["file", "path"],
+                    "type": "object",
+                    "properties": {
+                        "file": { "type": "string", "format": "binary" },
+                        "path": { "type": "string", "format": "path", "example": "/"}
+                    }
+                }
+            }
+        },
+        "required": True
+    }
+})
 async def create(
     request: Request,
     repository: Repository = Depends(middleware.repository),
diff --git a/tests/conftest.py b/tests/conftest.py
index fb2ce93..958269f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -129,27 +129,7 @@ async def api_client(
     app.database = database
     app.cache = cache
     app.cron = cron
-    await app.prepare_server()
-
-    # logger = make_logger(api_config)
-
-    # @asynccontextmanager
-    # async def lifespan(app: FastAPI) -> AsyncIterator[AppContext]:
-    #    yield AppContext(
-    #        config=api_config, database=database, cache=cache, logger=logger
-    #    )
-
-    # app = FastAPI(lifespan=lifespan)
-    # app.include_router(routers.api.router)
-    # app.include_router(routers.resources.router)
-    # app.include_router(routers.root.router)
-    # app.add_middleware(
-    #    CORSMiddleware,
-    #    allow_origins=["*"],
-    #    allow_credentials=True,
-    #    allow_methods=["*"],
-    #    allow_headers=["*"],
-    # )
+    app.prepare_server()
 
     async with LifespanManager(app.backend) as manager:
         async with AsyncClient(