diff --git a/configs/local.yaml b/configs/local.yaml
index 172fac5..435f612 100644
--- a/configs/local.yaml
+++ b/configs/local.yaml
@@ -6,13 +6,11 @@ app:
   port: 8000
   host: 0.0.0.0
   reload: True
-  thread_limiter_total_tokens: 40
 
 http:
   port: 8080
   host: 0.0.0.0
   reload: True
-  thread_limiter_total_tokens: 40
 
 rpc:
   port: 50051
@@ -22,7 +20,6 @@ logging:
   level_app: debug
   level_libs: info
   handlers: [console]
-
   syslog_app: null
   syslog_facility: null
   syslog_mapping: null
@@ -31,8 +28,6 @@ logging:
 postgres:
   host: postgres
   port: 5432
-  user: postgres
-  password: postgres
   database: featureflags
   timeout: 10
 
diff --git a/configs/test.yaml b/configs/test.yaml
index 998cab3..18c0862 100644
--- a/configs/test.yaml
+++ b/configs/test.yaml
@@ -6,13 +6,11 @@ app:
   port: 8000
   host: 0.0.0.0
   reload: True
-  thread_limiter_total_tokens: 40
 
 http:
   port: 8080
   host: 0.0.0.0
   reload: True
-  thread_limiter_total_tokens: 40
 
 rpc:
   port: 50051
@@ -22,7 +20,6 @@ logging:
   level_app: debug
   level_libs: info
   handlers: [console]
-
   syslog_app: null
   syslog_facility: null
   syslog_mapping: null
@@ -31,8 +28,6 @@ logging:
 postgres:
   host: postgres-test
   port: 5432
-  user: postgres
-  password: postgres
   database: featureflags-test
   timeout: 10
 
diff --git a/docker-compose.yaml b/docker-compose.yaml
index f1b91c5..b2053ad 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -47,6 +47,8 @@ services:
       PYTHONIOENCODING: UTF-8
       PYTHONUNBUFFERED: 1
       CONFIG_PATH: configs/local.yaml
+      PGUSER: postgres
+      PGPASS: postgres
     networks:
       - main
     volumes:
diff --git a/featureflags/config.py b/featureflags/config.py
index 6a76bab..00cdd75 100644
--- a/featureflags/config.py
+++ b/featureflags/config.py
@@ -3,6 +3,7 @@
 from pathlib import Path
 
 import yaml
+from pydantic import Field
 from pydantic_settings import BaseSettings
 
 log = logging.getLogger(__name__)
@@ -17,7 +18,6 @@ class LoggingSettings(BaseSettings):
     level_app: str
     level_libs: str
     handlers: list[str]
-
     syslog_app: str | None
     syslog_facility: str | None
     syslog_mapping: dict | None
@@ -27,8 +27,8 @@ class LoggingSettings(BaseSettings):
 class PostgresSettings(BaseSettings):
     host: str
     port: int
-    user: str
-    password: str
+    user: str = Field(..., alias="PGUSER")
+    password: str = Field(..., alias="PGPASS")
     database: str
     timeout: int = 10
 
@@ -56,14 +56,14 @@ class AppSettings(BaseSettings):
     port: int = 8000
     host: str = "0.0.0.0"
     reload: bool = False
-    thread_limiter_total_tokens: int = 40
+    max_concurrent_threads: int = 40
 
 
 class HttpSettings(BaseSettings):
     port: int = 8080
     host: str = "0.0.0.0"
     reload: bool = False
-    thread_limiter_total_tokens: int = 40
+    max_concurrent_threads: int = 40
 
 
 class RpcSettings(BaseSettings):
diff --git a/featureflags/http/lifecycle.py b/featureflags/http/lifecycle.py
index 15cc983..2c7dd0e 100644
--- a/featureflags/http/lifecycle.py
+++ b/featureflags/http/lifecycle.py
@@ -13,8 +13,9 @@ async def startup() -> None:
         """Application startup functions."""
 
         # https://github.com/tiangolo/fastapi/discussions/8587
+        # Adjust this value to limit the number of concurrent threads.
         limiter = anyio.to_thread.current_default_thread_limiter()
-        limiter.total_tokens = config.http.thread_limiter_total_tokens
+        limiter.total_tokens = config.http.max_concurrent_threads
 
         await container.init_resources()
 
diff --git a/featureflags/logging.py b/featureflags/logging.py
index 703ebe1..013d938 100644
--- a/featureflags/logging.py
+++ b/featureflags/logging.py
@@ -35,21 +35,6 @@ def configure_logging(package: str) -> None:
     logging.root.setLevel(config.logging.level_libs.upper())
     logging.getLogger(package).setLevel(config.logging.level_app.upper())
 
-    if "logevo" in config.logging.handlers:
-        if len(config.logging.handlers) > 1:
-            raise ValueError("logevo handler must be used alone")
-
-        try:
-            import logevo
-
-            logevo.configure_logging()
-        except ImportError as e:
-            raise ImportError(
-                "logevo handler is used but 'logevo' package is not installed"
-            ) from e
-        else:
-            log.info("Logevo configured")
-
     if "console" in config.logging.handlers:
         logging.root.addHandler(create_console_handler())
 
diff --git a/featureflags/web/lifecycle.py b/featureflags/web/lifecycle.py
index bd3daae..f552563 100644
--- a/featureflags/web/lifecycle.py
+++ b/featureflags/web/lifecycle.py
@@ -13,8 +13,9 @@ async def startup() -> None:
         """Application startup functions."""
 
         # https://github.com/tiangolo/fastapi/discussions/8587
+        # Adjust this value to limit the number of concurrent threads.
         limiter = anyio.to_thread.current_default_thread_limiter()
-        limiter.total_tokens = config.app.thread_limiter_total_tokens
+        limiter.total_tokens = config.app.max_concurrent_threads
 
         await container.init_resources()
 
diff --git a/pdm.lock b/pdm.lock
index d39177b..1b4e930 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,7 @@
 groups = ["default", "dev", "docs", "lint", "test"]
 strategy = ["cross_platform", "inherit_metadata"]
 lock_version = "4.4.1"
-content_hash = "sha256:9a1107332d22df98c9218951c14639bd8bb105feb9f863b950dffa542b7bdd82"
+content_hash = "sha256:400f203a046e8f97666641339bfa745307ed4777610d79f5fff9dc8591fc63e7"
 
 [[package]]
 name = "aiopg"