Building an LMS website with Next.js, discussing tech stack options including CMS vs Markdown, serverless architecture, and video hosting.

Hello
I have to build an LMS(to sell online courses) website. I would like to use
Next.js to build the frontend.I would like to build these features
1. My goal is to use content marketing and write blog articles to generate traffic -- Blog Functionality
2. My goal is to sell the premium courses with PayPal
3. My goal is to must-have free courses on my website

I need tech advice on what tech stack should I use?
1. Should I use CMS or simple plain Markdown static blog
2. Should I use serverless architecture
3. Where to host course videos (Amazon, Vimeo or any other option
4. Where to host my website like vercel, netlify

1. Use Sanity2. Yes
3. Mux, S3 and Vimeo all viable options
4. Vercel

Thank you for the response!
I just installed Sanity in my App
Which serverless framework should I use?. Netlify serverless or AWS serverless or any other option?
My preference is to start with cheap pricing. I want to generate some sales so I can afford expensive options
3. Which is the cheap video hosting from all these 3 options?

If you use NextJS i would recommend using Vercel as well…

3. Which is the cheap video hosting from all these 3 options? -> You need to look that up there… 😉