diff --git a/package.json b/package.json
index 8028b9a..16e4260 100644
--- a/package.json
+++ b/package.json
@@ -91,5 +91,8 @@
     "ora": "^7.0.1",
     "pretty-ms": "^8.0.0",
     "sparqljs": "^3.7.1"
+  },
+  "publishConfig": {
+    "registry": "https://npm.pkg.github.com"
   }
 }
diff --git a/src/lib/File.class.ts b/src/lib/File.class.ts
index 14e7158..9b69dd2 100644
--- a/src/lib/File.class.ts
+++ b/src/lib/File.class.ts
@@ -4,7 +4,7 @@ import { dirname } from 'path'
 
 export default class File {
   public static $id = 'File'
-  private readonly $isValid?: boolean
+  private $isValid?: boolean
   public constructor(private $path: string, private readonly skipExistsCheck: boolean = false) {}
 
   public validate(): File {
@@ -17,6 +17,7 @@ export default class File {
     if (!this.skipExistsCheck && (!existsSync(this.$path) || !statSync(this.$path).isFile())) {
       throw new Error(`File not found: \`${this.$path}\``)
     }
+    this.$isValid = true
     return this
   }
 
diff --git a/src/lib/Pipeline.class.ts b/src/lib/Pipeline.class.ts
index d4d91cb..74a3bea 100644
--- a/src/lib/Pipeline.class.ts
+++ b/src/lib/Pipeline.class.ts
@@ -30,7 +30,7 @@ class Pipeline {
     if(!destinationFile.endsWith('.nt')) {
       throw new Error('We currently only writing results in N-Triples format,\nmake sure your destination filename ends with \'.nt\'.')
     }
-    this.destination = new File(destinationFile, true)
+    this.destination = (new File(destinationFile, true)).validate()
   }
 
   private error(e: Error, stage?: string): void {
@@ -158,7 +158,7 @@ class Pipeline {
             chalk.green(
               `✔ your pipeline "${chalk.bold(
                 this.name
-              )}" was completed in ${duration(this.now)}}`
+              )}" was completed in ${duration(this.now)}`
             )
           );
       }
@@ -172,11 +172,6 @@ class Pipeline {
 
   private writeResult(): void {
     const spinner = ora("Combining statements from all stages:").start();
-
-    const destinationPathNew = this.configuration.destination
-    if (!isFilePathString(destinationPathNew)) {
-      throw new Error('We currently only allow publishing data to local files.')
-    }
     const destinationStream = this.destination.getStream()
     const stageNames = Array.from(this.stages.keys())
     for (const stageName of stageNames) {
diff --git a/static/example/config.yml b/static/example/config.yml
index 748587c..08d007a 100644
--- a/static/example/config.yml
+++ b/static/example/config.yml
@@ -4,6 +4,10 @@ description: >
   This is an example pipeline. It uses files that are available in this repository 
   and SPARQL endpoints that should work.
 
+
+# This is optional, by default it will be stored in the data directory of the pipeline using filename 'statements.nt'
+destination: file://data/example-pipeline.nt
+
 # The individual stages for your pipeline
 stages:
   - name: "Stage 1"
diff --git a/tsconfig.json b/tsconfig.json
index 5584064..986c709 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -49,10 +49,10 @@
     // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
 
     /* Emit */
-    "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
-    "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
-    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
-    "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
     // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
     // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
     "outDir": "./dist",                                   /* Specify an output folder for all emitted files. */