diff --git a/lite_bootstrap/bootstraps/fastapi_bootstrap.py b/lite_bootstrap/bootstraps/fastapi_bootstrap.py
deleted file mode 100644
index d1980b6..0000000
--- a/lite_bootstrap/bootstraps/fastapi_bootstrap.py
+++ /dev/null
@@ -1,51 +0,0 @@
-import dataclasses
-import typing
-
-import fastapi
-from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
-from sentry_sdk.integrations.asgi import SentryAsgiMiddleware
-
-from lite_bootstrap.bootstraps.base import BaseBootstrap
-from lite_bootstrap.instruments.opentelemetry_instrument import OpenTelemetryInstrument
-from lite_bootstrap.instruments.sentry_instrument import SentryInstrument
-
-
-@dataclasses.dataclass(kw_only=True)
-class FastAPIOpenTelemetryInstrument(OpenTelemetryInstrument):
-    excluded_urls: list[str] = dataclasses.field(default_factory=list)
-    app: fastapi.FastAPI = dataclasses.field(init=False)
-
-    def bootstrap(self) -> None:
-        super().bootstrap()
-        FastAPIInstrumentor.instrument_app(
-            app=self.app,
-            tracer_provider=self.tracer_provider,
-            excluded_urls=",".join(self.excluded_urls),
-        )
-
-    def teardown(self) -> None:
-        FastAPIInstrumentor.uninstrument_app(self.app)
-        super().teardown()
-
-
-@dataclasses.dataclass(kw_only=True)
-class FastAPISentryInstrument(SentryInstrument):
-    app: fastapi.FastAPI = dataclasses.field(init=False)
-
-    def bootstrap(self) -> None:
-        super().bootstrap()
-        self.app.add_middleware(SentryAsgiMiddleware)  # type: ignore[arg-type]
-
-    def teardown(self) -> None:
-        FastAPIInstrumentor.uninstrument_app(self.app)
-        super().teardown()
-
-
-@dataclasses.dataclass(kw_only=True, slots=True, frozen=True)
-class FastAPIBootstrap(BaseBootstrap):
-    app: fastapi.FastAPI
-    instruments: typing.Sequence[FastAPIOpenTelemetryInstrument | FastAPISentryInstrument]
-
-    def __post_init__(self) -> None:
-        for one_instrument in self.instruments:
-            one_instrument.app = self.app
diff --git a/lite_bootstrap/bootstraps/fastapi_bootstrap/__init__.py b/lite_bootstrap/bootstraps/fastapi_bootstrap/__init__.py
new file mode 100644
index 0000000..51595eb
--- /dev/null
+++ b/lite_bootstrap/bootstraps/fastapi_bootstrap/__init__.py
@@ -0,0 +1,25 @@
+import dataclasses
+import typing
+
+import fastapi
+
+from lite_bootstrap.bootstraps.base import BaseBootstrap
+from lite_bootstrap.bootstraps.fastapi_bootstrap.opentelemetry_instrument import FastAPIOpenTelemetryInstrument
+from lite_bootstrap.bootstraps.fastapi_bootstrap.sentry_instrument import FastAPISentryInstrument
+
+
+__all__ = [
+    "FastAPIBootstrap",
+    "FastAPIOpenTelemetryInstrument",
+    "FastAPISentryInstrument",
+]
+
+
+@dataclasses.dataclass(kw_only=True, slots=True, frozen=True)
+class FastAPIBootstrap(BaseBootstrap):
+    app: fastapi.FastAPI
+    instruments: typing.Sequence[FastAPIOpenTelemetryInstrument | FastAPISentryInstrument]
+
+    def __post_init__(self) -> None:
+        for one_instrument in self.instruments:
+            one_instrument.app = self.app
diff --git a/lite_bootstrap/bootstraps/fastapi_bootstrap/opentelemetry_instrument.py b/lite_bootstrap/bootstraps/fastapi_bootstrap/opentelemetry_instrument.py
new file mode 100644
index 0000000..bd7e15a
--- /dev/null
+++ b/lite_bootstrap/bootstraps/fastapi_bootstrap/opentelemetry_instrument.py
@@ -0,0 +1,28 @@
+import contextlib
+import dataclasses
+
+import fastapi
+
+from lite_bootstrap.instruments.opentelemetry_instrument import OpenTelemetryInstrument
+
+
+with contextlib.suppress(ImportError):
+    from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
+
+
+@dataclasses.dataclass(kw_only=True)
+class FastAPIOpenTelemetryInstrument(OpenTelemetryInstrument):
+    excluded_urls: list[str] = dataclasses.field(default_factory=list)
+    app: fastapi.FastAPI = dataclasses.field(init=False)
+
+    def bootstrap(self) -> None:
+        super().bootstrap()
+        FastAPIInstrumentor.instrument_app(
+            app=self.app,
+            tracer_provider=self.tracer_provider,
+            excluded_urls=",".join(self.excluded_urls),
+        )
+
+    def teardown(self) -> None:
+        FastAPIInstrumentor.uninstrument_app(self.app)
+        super().teardown()
diff --git a/lite_bootstrap/bootstraps/fastapi_bootstrap/sentry_instrument.py b/lite_bootstrap/bootstraps/fastapi_bootstrap/sentry_instrument.py
new file mode 100644
index 0000000..a6772b0
--- /dev/null
+++ b/lite_bootstrap/bootstraps/fastapi_bootstrap/sentry_instrument.py
@@ -0,0 +1,19 @@
+import contextlib
+import dataclasses
+
+import fastapi
+
+from lite_bootstrap.instruments.sentry_instrument import SentryInstrument
+
+
+with contextlib.suppress(ImportError):
+    from sentry_sdk.integrations.asgi import SentryAsgiMiddleware
+
+
+@dataclasses.dataclass(kw_only=True)
+class FastAPISentryInstrument(SentryInstrument):
+    app: fastapi.FastAPI = dataclasses.field(init=False)
+
+    def bootstrap(self) -> None:
+        super().bootstrap()
+        self.app.add_middleware(SentryAsgiMiddleware)  # type: ignore[arg-type]
diff --git a/lite_bootstrap/instruments/opentelemetry_instrument.py b/lite_bootstrap/instruments/opentelemetry_instrument.py
index 03ca14b..8974336 100644
--- a/lite_bootstrap/instruments/opentelemetry_instrument.py
+++ b/lite_bootstrap/instruments/opentelemetry_instrument.py
@@ -1,16 +1,18 @@
+import contextlib
 import dataclasses
 import typing
 
-import pydantic
-from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import OTLPSpanExporter
-from opentelemetry.instrumentation.instrumentor import BaseInstrumentor  # type: ignore[attr-defined]
-from opentelemetry.sdk import resources
-from opentelemetry.sdk.trace import TracerProvider
-from opentelemetry.sdk.trace.export import BatchSpanProcessor
-
 from lite_bootstrap.instruments.base import BaseInstrument
 
 
+with contextlib.suppress(ImportError):
+    from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import OTLPSpanExporter
+    from opentelemetry.instrumentation.instrumentor import BaseInstrumentor  # type: ignore[attr-defined]
+    from opentelemetry.sdk import resources
+    from opentelemetry.sdk.trace import TracerProvider
+    from opentelemetry.sdk.trace.export import BatchSpanProcessor
+
+
 @dataclasses.dataclass(kw_only=True, slots=True, frozen=True)
 class InstrumentorWithParams:
     instrumentor: BaseInstrumentor
@@ -24,7 +26,7 @@ class OpenTelemetryInstrument(BaseInstrument):
     container_name: str | None = None
     endpoint: str | None = None
     namespace: str | None = None
-    insecure: bool = pydantic.Field(default=True)
+    insecure: bool = True
     instrumentors: list[InstrumentorWithParams | BaseInstrumentor] = dataclasses.field(default_factory=list)
 
     tracer_provider: TracerProvider = dataclasses.field(init=False)
diff --git a/lite_bootstrap/instruments/sentry_instrument.py b/lite_bootstrap/instruments/sentry_instrument.py
index 8b0c4cb..69fe2b2 100644
--- a/lite_bootstrap/instruments/sentry_instrument.py
+++ b/lite_bootstrap/instruments/sentry_instrument.py
@@ -1,17 +1,19 @@
+import contextlib
 import dataclasses
 import typing
 
-import pydantic
-import sentry_sdk
-from sentry_sdk.integrations import Integration
-
 from lite_bootstrap.instruments.base import BaseInstrument
 
 
+with contextlib.suppress(ImportError):
+    import sentry_sdk
+    from sentry_sdk.integrations import Integration
+
+
 @dataclasses.dataclass(kw_only=True, slots=True)
 class SentryInstrument(BaseInstrument):
     dsn: str | None = None
-    sample_rate: float = pydantic.Field(default=1.0, le=1.0, ge=0.0)
+    sample_rate: float = dataclasses.field(default=1.0)
     traces_sample_rate: float | None = None
     environment: str | None = None
     max_breadcrumbs: int = 15