Yarr
Yarr is a web-based RSS feed aggregator that can be used as either a desktop application or a personal server. It is for people who read RSS feeds and want to choose between using a desktop application and running a personal server. In desktop form, Yarr works as an application; in server form, it runs as the user's personal server. Both options provide the same core function: a web-based reader that aggregates RSS feeds. The personal-server option has a practical limitation: anyone choosing that form must run a personal server. People who do not want to run a server can use Yarr as a desktop application instead. Yarr has a narrow function centered on RSS reading and feed aggregation. It is best suited to users seeking that specific function and one of its two available forms, rather than users looking for a different type of program or another deployment model.