diff --git a/.gitignore b/.gitignore
index 4e42f48..b4e75f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -131,3 +131,4 @@ dist
 .pnp.*
 ignore
 data
+.test
diff --git a/src/index.ts b/src/index.ts
index a345eb7..907e09a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,43 +5,41 @@ import fs from "fs";
 import path from "path";
 import jsdom from "jsdom";
 import IConfig from "@src/types/Config";
+import IPost from "@src/types/Post";
 
+// parse config (cant use require or import because the compiler gets mad)
 let config: IConfig = JSON.parse(fs.readFileSync(path.join(__dirname, '../', 'data', 'config.json'), 'utf-8'))
+
+// init app
 let app = express();
 
 // set view engine to ejs
 app.set("view engine", "ejs")
 app.set('views', path.join(__dirname, 'views', 'themes', config.theme))
 
-// type for post object
-type Post = {
-  file: string;
-  title: string;
-  parsedPost: string;
-  rawPost: string;
-  metadata: fs.Stats;
-}
-
 // html stripper, used for title
-async function htmlstripper(html: string){
+async function htmlStripper(html: string){
   return new jsdom.JSDOM(html).window.document.body.textContent || " ";
 }
 
 // returns Post array
-async function contentScan(){
-  let posts: Post[] = []
+async function contentScan(): Promise<IPost[]>{
+  let posts: IPost[] = []
   let postsDir = path.join(__dirname, '../', 'data',"posts")
   let files = await fs.readdirSync(postsDir).filter((name: string) => name.toLowerCase().endsWith(".md"))
   for (const file of files) {
+
     let postPath = path.join(postsDir, file)
     let metadata = fs.statSync(postPath)
     let postContent = fs.readFileSync(postPath, "utf-8")
+
+    // Retrieve first line in file, then turn it into html and then strip the html.
     posts.push(
       {
         file: file, 
-        title: await htmlstripper(
+        title: await htmlStripper(
           await marked.parse(
-            postContent.split("\n")[0]
+            postContent.split("\n")[0] 
           )
         ), 
         metadata: metadata,
@@ -54,15 +52,23 @@ async function contentScan(){
 }
 
 app.get("/", async (req:express.Request,res:express.Response) => {
+  // render index.ejs & pass config, and posts.
   res.render(`index`, {posts: (await contentScan()), config: config})
 });
 
+// post reader
 app.use("/post/:post", async (req:express.Request,res:express.Response) => {
+
+  // check if the post exists
   let pathToPost = path.join(__dirname, '../', 'data', "posts", req.params.post);
-  if(!fs.existsSync(pathToPost)) return res.end("404.");
+  if(!fs.existsSync(pathToPost)) return res.status(404).end();
+
+  // retrieve posts and check for parameter
   let posts = await contentScan();
   let post = posts.filter(post => post.file === req.params.post)
-  if(!post[0]) return res.end("404.")
+  if(!post[0]) return res.status(404).end()
+
+  // render post using post.ejs. pass all the posts, the post itself and the config
   res.render(`post`, {posts: posts, post: post[0], config: config})
 })
 
diff --git a/src/types/Post.ts b/src/types/Post.ts
new file mode 100644
index 0000000..91a1dbc
--- /dev/null
+++ b/src/types/Post.ts
@@ -0,0 +1,10 @@
+import fs from "fs"
+export default interface IPost {
+  file: string; // File name
+  title: string; // Title of post, usually the first line.
+  parsedPost: string; // Parsed Post (MD => HTML)
+  rawPost: string; // Raw Markdown Post
+  metadata: fs.Stats; // Metadata provided by FS
+}
+
+