Fix missing exports

README.md

@@ -8,6 +8,10 @@ Make sure you have registry specified in the `.npmrc` file:
 @speedy-tuner:registry=https://npm.pkg.github.com
 ```
 
+Authenticate to GitHub Packages:
+
+[authenticating-to-github-packages](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-npm-registry#authenticating-to-github-packages)
+
 Proceed with the installation:
 
 ```bash

src/index.ts

@@ -0,0 +1,3 @@
+export * from './types/config';
+export * from './types/state';
+export * from './types/tune';

src/tune.ts

@@ -1,12 +0,0 @@
-export interface Constant {
-  units?: string;
-  value: string | number;
-}
-
-export interface Constants {
-  [name: string]: Constant;
-}
-
-export interface Tune {
-  constants: Constants;
-}

src/types/tune.ts

@@ -0,0 +1,12 @@
+export interface TuneConstant {
+  units?: string;
+  value: string | number;
+}
+
+export interface TuneConstants {
+  [name: string]: TuneConstant;
+}
+
+export interface Tune {
+  constants: TuneConstants;
+}