tt-rss 21~git20210204.b4cbc79+dfsg-1.2 (amd64 binary) in ubuntu lunar

 Tiny Tiny RSS is designed to allow you to read news from any location, while
 feeling as close to a real desktop application as possible.
 .
 Feature list:
  * server-side application - user only needs a web browser;
  * support for RSS, RDF, Atom feeds;
  * streamlined interface using AJAX;
  * authentication for reading protected feeds;
  * OPML import/export;
  * feed aggregation;
  * keyboard shortcuts;
  * content filtering;
  * JSON-based RPC API.