You will need to install the web application Tiny Tiny Rss first (https://tt-rss.org/) and enable API access. Then you will be able to access your Tiny Tiny Rss account from anywhere.

Geekttrss is an open source application and licensed under the GNU General Public License 3 and any later version. This means that you can get GeekTtRss’s code and modify it to suit your needs, as long as you publish the changes you make for everyone to benefit from as well.

Geekttrss is built and maintained by community volunteers.