diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..84a10d7
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,17 @@
+name: Build
+on:
+  push:
+    branches:
+      - main
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout project
+        uses: actions/checkout@v3
+      - name: Build and push
+        uses: alexthemaster/action-build-typescript@master
+        with:
+          pushToBranch: true
+          branch: "dist"
+          githubToken: ${{ secrets.GITHUB_TOKEN }}
diff --git a/package.json b/package.json
index 4a11276..9effa26 100644
--- a/package.json
+++ b/package.json
@@ -1,37 +1,46 @@
 {
-  "name": "activitypub-types",
-  "version": "1.0.3",
-  "description": "ActivityPub Typescript types",
-  "main": "./dist/index.js",
-  "scripts": {
-    "tsc": "tsc -p ./tsconfig.json",
-    "tsc:watch": "tsc -w -p ./tsconfig.json",
-    "lint:fix": "eslint --fix ."
-  },
-  "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^5.54.1",
-    "@typescript-eslint/parser": "^5.54.1",
-    "eslint": "^8.36.0",
-    "typescript": "^4.9.5"
-  },
-  "keywords": [
-    "activitypub",
-    "typescript",
-    "types",
-    "models",
-    "activitystreams"
-  ],
-  "files": [
-    "dist",
-    "LICENSE",
-    "README.md",
-    "package.json",
-    "package-lock.json"
-  ],
-  "author": "SiranWeb <siranweb@tuta.io>",
-  "license": "MIT",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/SiranWeb/activitypub-types"
-  }
-}
+	"name": "activitypub-types",
+	"version": "1.0.4",
+	"description": "ActivityPub Typescript types",
+	"main": "./dist/index.js",
+	"scripts": {
+		"build": "tsc",
+		"tsc:watch": "tsc -w",
+		"lint:fix": "eslint --fix ."
+	},
+	"devDependencies": {
+		"@typescript-eslint/eslint-plugin": "^5.54.1",
+		"@typescript-eslint/parser": "^5.54.1",
+		"eslint": "^8.36.0",
+		"typescript": "^4.9.5"
+	},
+	"keywords": [
+		"activitypub",
+		"typescript",
+		"types",
+		"models",
+		"activitystreams"
+	],
+	"files": [
+		"dist",
+		"LICENSE",
+		"README.md",
+		"package.json",
+		"package-lock.json"
+	],
+	"contributors": [
+		{
+			"name": "SiranWeb",
+			"email": "siranweb@tuta.io"
+		},
+		{
+			"name": "Spacebarchat",
+			"url": "https://spacebar.chat"
+		}
+	],
+	"license": "MIT",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/spacebarchat/activitypub-types"
+	}
+}
\ No newline at end of file
diff --git a/src/model-interfaces/actors/actor.interface.ts b/src/model-interfaces/actors/actor.interface.ts
index 9643fdb..e615a36 100644
--- a/src/model-interfaces/actors/actor.interface.ts
+++ b/src/model-interfaces/actors/actor.interface.ts
@@ -106,4 +106,16 @@ export interface APActor extends APObject {
      * {@link https://www.w3.org/TR/activitypub/#actors Docs}
      */
     endpoints?: EndpointsField;
+
+	/**
+	 * The public key of this actor, used to sign activities.
+	 */
+	publicKey?: {
+		/** The ID of this public key. Typically `https://example.com/users/username#main-key`. */
+		id: string;
+		/** The owner of this key. Typically matches actor ID. */
+		owner: string;
+		/** The RSA public key. */
+		publicKeyPem: string;
+	}
 }
diff --git a/tsconfig.json b/tsconfig.json
index feb2486..79e2ba6 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,5 +11,5 @@
     "skipLibCheck": true
   },
   "include": ["src/**/*"],
-  "exclude": ["node_modules"],
+  "exclude": ["node_modules"]
 }