You will need:

Install the Python package

Download the source code from github into a local folder on your machine.

Open a command prompt in that folder and install the third party Python packages data-admin depends on. Using a Python virtual environment is supported.

pip3 install -r requirements.txt

Create a PostgreSQL database user

Next, create a database user for data admin. From a psql prompt or pgadmin, you can do this with the following SQL command:

create role frepple with login superuser password 'frepple';

The role name, password and privileges can be changed to your taste. The above is just a quick default to get started with.