Refactored my long-term (19 years in May) hobby project, the RSS Box Viewer: upgraded codebase to Python 3.7, Svelte 3, added a lot of support for client-side caching, fixed some bugs and implemented some new ones 😜

Best new idea: the referrers section shows an RSS icon for each referrer, linking to the viewer page of the embedded RSS feed. Should have done this a long time ago already as it totally eases issue verification for each referrer!