Website on Python - Video Uniqueness Tool

It is necessary to create a website in Python for the unique processing of vertical videos. There is a basic layout, and we need to add a backend in Python. The first task will be a test one, where we will create the necessary database. Then there will be more tasks where we will implement everything additional that is needed.

Some details:
1. We will deploy on an Ubuntu 24.04 server from digitalocean.com
2. The basic layout has been added to the archive, we will work with it
3. It is necessary to structure everything well by files/folders right away - so that it will be convenient to work in the future
- to pull repeated elements of the site (header, footer, menu, etc.) from separate files, so that it is not necessary to edit them on each page
4. The site should run through screen
5. Ideally, the database should be in a .sql file so that it can be exported and quickly edited through sqllitesudio, but I am open to other options
6. The unique processing of videos should work on the library FFmpeg (as a basis)
7. Of course, we need to work on the issue of multithreading, as there may not be just one user at the same time, and naturally with asynchronicity. For example, set the maximum number of threads to 5; if there are more, the others will queue until someone's task is completed (with the ability to adjust the number of threads)

Task:

index.html

login.html - create the ability for registration, authorization, and password recovery. The ability to register and authorize also through Gmail

main.html (main page after authorization) - here the user should have the ability to upload a video in 9:16 format up to 60 seconds

The video will be uploaded in the format shown in the image on the left, and output as in the image on the right + filters should be applied to the video: brightness +0.04, contrast +0.06, speed +0.08

Add pages terms and privacy - completely empty pages in the style of the site, so that I can write the necessary text centered there

There will be many further improvements to the site, including payment systems, profiles, and other unique processing functions... so I am looking for a person not for just one task, ready to work long-term.