php backend needed (full time only)

php backend needed or any other framework backend also can

full time and full time usd 5 only..

this app will be like this (personal activity count)
https://www.dropbox.com/s/gpy4oy73n0bb909/XRecorder_15042022_014554.mp4?dl=0

we would like to work rebuild the system and welcome hire many dev to build the plugin

the architecture concept would be foundation core file + plugin (like wordpress)
- core files is themes
- activity is plugin ( so i will hire many developer for creating this activity)

so you need to create a core files and prepare document for other developer to build plugin as zip uploading and activate

Plugin activity have many type
- number count
- text count
- time input (long/short)
- upload image and video
- bad habit count
- etc


report have many type
- normal time
- timebase type