Updated README to include tech stack & implementation

README.md

@@ -1,28 +1,65 @@
-<p align="center">
-  <a href="https://dub.sh">
-    <img src="https://dub.sh/static/logo.png" height="96">
-    <h3 align="center">Dub</h3>
-  </a>
-</p>
+<a href="https://dub.sh">
+  <img alt="Dub – an open-source link shortener SaaS with built-in analytics + free custom domains." src="/public/static/thumbnail.png">
+  <h1 align="center">Dub</h1>
+</a>
 
 <p align="center">
-  An open-source Bitly alternative with built-in analytics + free custom domains.
+  An open-source link shortener SaaS with built-in analytics + free custom domains.
 </p>
 
 <p align="center">
   <a href="#introduction"><strong>Introduction</strong></a> ·
   <a href="#deploy-your-own"><strong>Deploy Your Own</strong></a> ·
+  <a href="#tech-stack"><strong>Tech Stack</strong></a> ·
+  <a href="#implementation"><strong>Implementation</strong></a> ·
   <a href="#contributing"><strong>Contributing</strong></a>
 </p>
 <br/>
 
 ## Introduction
 
-Dub is an open-source link shortener with built-in analytics + free custom domains. Built with Vercel Edge Functions and Upstash Redis.
+Dub is an open-source link shortener with built-in analytics + free custom domains. Built with [Vercel Edge Functions](http://vercel.com/edge) and [Upstash Redis](https://docs.upstash.com/redis).
+
+Here are some of the features that Dub provides out-of-the-box:
+
+### Built-in Analytics
+
+Dub provides a powerful analytics dashboard for your links, including geolocation, device, and browser information.
+
+<img alt="Analytics Dashboard" src="/public/static/landing/analytics.png" height="500">
+
+### Custom domains
+
+You can easily configure custom domains on Dub – just add an A/CNAME record to your DNS provider and you're good to go. This is built on the [Vercel Domains API](https://domains-api.vercel.app/).
+
+<img alt="Analytics Dashboard" src="/public/static/landing/domains.png" height="400">
 
 ## Deploy Your Own
 
-[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fsteven-tey%2Fdub&demo-title=Dub%20-%20Open-Source%20Link%20Shortener&demo-description=An%20open-source%20link%20shortener%20built%20with%20Vercel%20Edge%20Functions%20and%20Upstash.&project-name=Dub&repository-name=dub&demo-url=https%3A%2F%2Fdub.sh&demo-image=https%3A%2F%2Fdub.sh%2Fstatic%2Fthumbnail.png&integration-ids=oac_V3R1GIpkoJorr6fqyiwdhl17)
+You can deploy your own hosted version of Dub for greater privacy & control. Just click the link below to deploy a ready-to-go version of Dub to Vercel.
+
+[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fsteven-tey%2Fdub&demo-title=Dub%20-%20Open-Source%20Link%20Shortener&demo-description=An%20open-source%20link%20shortener%20SaaS%20built%20with%20Vercel%20Edge%20Functions%20and%20Upstash.&project-name=Dub&repository-name=dub&demo-url=https%3A%2F%2Fdub.sh&demo-image=https%3A%2F%2Fdub.sh%2Fstatic%2Fthumbnail.png&integration-ids=oac_V3R1GIpkoJorr6fqyiwdhl17)
+
+## Tech Stack
+
+- [Next.js](https://nextjs.org/) – framework
+- [Typescript](https://www.typescriptlang.org/) – language
+- [Tailwind](https://tailwindcss.com/) – CSS
+- [Upstash](https://upstash.com/) – database
+- [NextAuth.js](https://next-auth.js.org/) – auth
+- [Verce](https://vercel.com/) – hosting
+- [Stripe](https://stripe.com/) – payments
+
+## Implementation
+
+Dub is built as a standard Next.js application with [Middleware](https://nextjs.org/docs/advanced-features/middleware) to handle multi-tenancy, inspired by [the Vercel Platforms Starter Kit](https://github.com/vercel/platforms).
+
+[Redis](https://redis.io/) is used as the database for storing links and analytics data, which works well for key-value data types. Redis also has the Sorted Set data type, which is perfect for storing & retrieving time-series analytics data. Here's the full schema:
+
+- `{hostname}:links` – hashmap of all links for a given hostname (e.g. `dub.sh:links`)
+- `{hostname}:links:timestamps` – sorted set of all link timestamps for a given hostname (e.g. `dub.sh:links:timestamps`)
+- `{hostname}:clicks:{linkId}` – sorted set of all clicks for a given link (e.g. `dub.sh:clicks:github`)
+- `{hostname}:root:clicks` – sorted set of all root link clicks for a given hostname (e.g. `dub.sh:root:clicks`)
 
 ## Contributing