Digital online marketplace to connect buyers and sellers

Hi indieFriend,
I have been working as full stack developer for 9 months now after teaching myself for two years.
I have been flipping domains a website online for few years now and since
I really love coding and problem solving ability , I decided to build my own platform which is a digital online marketplace to connect buyers and sellers to search, buy , sell domains , websites, apps , plugins and theme online.

I am currently building a tool that will help anyone to search domains that match their branch and launch the first version of this app this saturday february 25, 2023 and from there I will start working on building the marketplace.

my goal is to build the MVP is six weeks.

for the tech Stack :
frontend: ReactJs
backend : java and springboot
database: postgres
Tool : docker
deployment: namecheap.com thost my frontend and elasticBeanStalk to host the backend .
I am very confortable with these technologies and I decided to use them

I am very new on Sass application and have no experience building things in public.
I will love to have advice from all you'll
thanks

I look forward to hearing from you'll soon