(Not so) Obvious Next.js / Vercel / Sitecore Horizon performance improvements

Sitecore Horizon is a modern way to visually edit Sitecore websites. Paired with Next.js and Vercel, it provides great editing experience.

But how does it actually work and what are the potential bottlenecks?

In a typical setup (without Next.js / Vercel), the data flow is pretty simple:

Making Lucene index smaller in Sitecore 7

With Sitecore 7, indexing is now extremely fast, but if the database is large enough, you may easily end up with 500+ megabytes of disk space occupied by indexes and index rebuild time might still be an issue, as well as a query performance. It might not be a big deal for a global website search, but if you only use Lucene index to find a few most recent articles, etc. - this can be an issue.

Mobile Device Detector - Performance

The last blog post about Mobile Device Detector was so popular, that I've decided to post updates and some results of performance profiling without delays.