How to stay technically relevant as you become more senior

It's a common challenge: as you get more senior, your calendar fills up with meetings, design reviews, and mentorship, leaving less time for hands-on coding. I've found it's tough to stay technically relevant when the tools and frameworks are evolving so fast, especially in frontend where things change almost daily. My strategies so far include dedicating specific blocks for deep-dives into new tech, even if it's just building a small proof-of-concept. I also try to contribute to open-source projects or maintain a couple of side projects using newer stacks like Astro or Rust for web assembly. Reading engineering blogs from companies pushing boundaries is also crucial. Sometimes, my mentees actually teach me the most about specific libraries or optimizations they're working with, which is awesome. I'm always looking for new ways to keep my skills sharp. How do others manage to stay connected to the code and avoid becoming purely theoretical architects?