Svmuu News According to Nikita Bier, X's product lead and Solana advisor, X has officially launched the "Custom Timelines" feature. This allows users to pin specific topics to their home feed tabs and supports over 75 interest-based topics, helping users delve deeper into niche content areas. The feature is powered by Grok for content understanding and combines the platform's algorithm for personalized recommendations, enabling each timeline to be dynamically generated based on user interests. It performs particularly well on topics where users have already shown interaction preferences. Currently, the feature is available for early access to Premium subscribers on iOS, with the Android version expected to launch soon.