diff --git a/src/config.ts b/src/config.ts
index fe01392d..1c3d8ccf 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -19,7 +19,7 @@ import CascadeLayout from "./engine/layout/cascade_layout";
 import { WindowsLayout } from "./engine/layout";
 import { WindowsLayoutClass } from "./engine/layout";
 
-export default interface Config {
+export interface Config {
   //#region Layout
   layoutOrder: string[];
   layoutFactories: { [key: string]: () => WindowsLayout };
diff --git a/src/controller/index.ts b/src/controller/index.ts
index 165e2765..aec4643a 100644
--- a/src/controller/index.ts
+++ b/src/controller/index.ts
@@ -10,7 +10,7 @@ import { WindowState } from "../engine/window";
 import { Driver, DriverImpl } from "../driver";
 import { DriverSurface } from "../driver/surface";
 
-import Config from "../config";
+import { Config } from "../config";
 import { Log } from "../util/log";
 
 import * as Action from "./action";
diff --git a/src/driver/index.ts b/src/driver/index.ts
index c8c73b96..7e4d70e3 100644
--- a/src/driver/index.ts
+++ b/src/driver/index.ts
@@ -14,7 +14,7 @@ import { EngineWindow, EngineWindowImpl } from "../engine/window";
 
 import { WindowState } from "../engine/window";
 
-import Config from "../config";
+import { Config } from "../config";
 import { Log } from "../util/log";
 
 /**
diff --git a/src/driver/surface.ts b/src/driver/surface.ts
index 459ecc90..9009fdce 100644
--- a/src/driver/surface.ts
+++ b/src/driver/surface.ts
@@ -3,7 +3,7 @@
 //
 // SPDX-License-Identifier: MIT
 
-import Config from "../config";
+import { Config } from "../config";
 import { Rect } from "../util/rect";
 
 /**
diff --git a/src/driver/window.ts b/src/driver/window.ts
index 5d8b448b..54cae10b 100644
--- a/src/driver/window.ts
+++ b/src/driver/window.ts
@@ -7,7 +7,7 @@ import { DriverSurface, DriverSurfaceImpl } from "./surface";
 
 import { Rect } from "../util/rect";
 import { clip, matchWords } from "../util/func";
-import Config from "../config";
+import { Config } from "../config";
 import { Log } from "../util/log";
 
 /**
diff --git a/src/engine/index.test.ts b/src/engine/index.test.ts
index 11d85a50..7786d916 100644
--- a/src/engine/index.test.ts
+++ b/src/engine/index.test.ts
@@ -7,7 +7,7 @@
 import { createMock } from "ts-auto-mock";
 
 import { EngineImpl } from ".";
-import Config from "../config";
+import { Config } from "../config";
 import { Controller } from "../controller";
 import { DriverSurface } from "../driver/surface";
 
diff --git a/src/engine/index.ts b/src/engine/index.ts
index 8a03111e..9518431a 100644
--- a/src/engine/index.ts
+++ b/src/engine/index.ts
@@ -15,7 +15,7 @@ import { DriverSurface } from "../driver/surface";
 
 import { Rect, RectDelta } from "../util/rect";
 import { overlap, wrapIndex } from "../util/func";
-import Config from "../config";
+import { Config } from "../config";
 import { Log } from "../util/log";
 import { WindowsLayout } from "./layout";
 
diff --git a/src/engine/layout/index.ts b/src/engine/layout/index.ts
index 127b2ad7..f3fb22c1 100644
--- a/src/engine/layout/index.ts
+++ b/src/engine/layout/index.ts
@@ -10,7 +10,7 @@ import { Controller } from "../../controller";
 import { Action } from "../../controller/action";
 
 import { Rect, RectDelta } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 
 export interface WindowsLayoutClass {
   readonly id: string;
diff --git a/src/engine/layout/layout_part.ts b/src/engine/layout/layout_part.ts
index 368ffc91..f2ed8d75 100644
--- a/src/engine/layout/layout_part.ts
+++ b/src/engine/layout/layout_part.ts
@@ -7,7 +7,7 @@ import LayoutUtils from "./layout_utils";
 
 import { EngineWindow } from "../window";
 
-import Config from "../../config";
+import { Config } from "../../config";
 import { Rect, RectDelta } from "../../util/rect";
 
 export interface ILayoutPart {
diff --git a/src/engine/layout/monocle_layout.ts b/src/engine/layout/monocle_layout.ts
index ed65452e..6c3f0f65 100644
--- a/src/engine/layout/monocle_layout.ts
+++ b/src/engine/layout/monocle_layout.ts
@@ -18,7 +18,7 @@ import {
 } from "../../controller/action";
 
 import { Rect } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 import { Controller } from "../../controller";
 import { Engine } from "..";
 
diff --git a/src/engine/layout/quarter_layout.ts b/src/engine/layout/quarter_layout.ts
index 1ca0ef5e..fe2fb863 100644
--- a/src/engine/layout/quarter_layout.ts
+++ b/src/engine/layout/quarter_layout.ts
@@ -9,7 +9,7 @@ import { WindowState, EngineWindow } from "../window";
 
 import { clip } from "../../util/func";
 import { Rect, RectDelta } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 import { Controller } from "../../controller";
 
 export default class QuarterLayout implements WindowsLayout {
diff --git a/src/engine/layout/spiral_layout.ts b/src/engine/layout/spiral_layout.ts
index 3e16faf7..186794b8 100644
--- a/src/engine/layout/spiral_layout.ts
+++ b/src/engine/layout/spiral_layout.ts
@@ -10,7 +10,7 @@ import { WindowsLayout } from ".";
 import { WindowState, EngineWindow } from "../window";
 
 import { Rect, RectDelta } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 import { Controller } from "../../controller";
 
 export type SpiralLayoutPart = HalfSplitLayoutPart<
diff --git a/src/engine/layout/three_column_layout.ts b/src/engine/layout/three_column_layout.ts
index 0f0abc2e..d1a09d0b 100644
--- a/src/engine/layout/three_column_layout.ts
+++ b/src/engine/layout/three_column_layout.ts
@@ -18,7 +18,7 @@ import {
 
 import { partitionArrayBySizes, clip, slide } from "../../util/func";
 import { Rect, RectDelta } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 import { Controller } from "../../controller";
 import { Engine } from "..";
 
diff --git a/src/engine/layout/tile_layout.ts b/src/engine/layout/tile_layout.ts
index fc6e6b33..cb2c27c7 100644
--- a/src/engine/layout/tile_layout.ts
+++ b/src/engine/layout/tile_layout.ts
@@ -24,7 +24,7 @@ import {
 
 import { clip, slide } from "../../util/func";
 import { Rect, RectDelta } from "../../util/rect";
-import Config from "../../config";
+import { Config } from "../../config";
 import { Controller } from "../../controller";
 import { Engine } from "..";
 
diff --git a/src/engine/layout_store.ts b/src/engine/layout_store.ts
index f842359a..9ca1804f 100644
--- a/src/engine/layout_store.ts
+++ b/src/engine/layout_store.ts
@@ -11,7 +11,7 @@ import { WindowsLayout } from "./layout";
 import { DriverSurface } from "../driver/surface";
 
 import { wrapIndex } from "../util/func";
-import Config from "../config";
+import { Config } from "../config";
 
 export class LayoutStoreEntry {
   public get currentLayout(): WindowsLayout {
diff --git a/src/engine/window.ts b/src/engine/window.ts
index a0d94816..bfbbcd4b 100644
--- a/src/engine/window.ts
+++ b/src/engine/window.ts
@@ -6,7 +6,7 @@
 import { DriverWindow } from "../driver/window";
 import { DriverSurface } from "../driver/surface";
 
-import Config from "../config";
+import { Config } from "../config";
 import { Log } from "../util/log";
 import { Rect, RectDelta } from "../util/rect";
 
diff --git a/src/util/log.ts b/src/util/log.ts
index c4ec1e14..9faa78fc 100644
--- a/src/util/log.ts
+++ b/src/util/log.ts
@@ -3,7 +3,7 @@
 //
 // SPDX-License-Identifier: MIT
 
-import Config from "../config";
+import { Config } from "../config";
 
 type LogType = string | Record<string, unknown> | LogType[];
 export interface Log {