[Linux]

python3 -m virtualenv .env #create virtualenv

source .env/bin/activate #activate env

python3 -m pip install -r requirements.txt #install requirements pack

deactivate #deactivate

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[Windows]

python -m virtualenv .env #Create virtualenv

.env\Scripts\activate #activate env

python -m pip install -r requirements.txt #install requirements pack

deactivate #deactivate

python .\app\app.py #run app