This Guy Has Built an Open Source Search Engine as an Alternative to Google in His Spare Time

https://lemm.ee/post/23315957

This Guy Has Built an Open Source Search Engine as an Alternative to Google in His Spare Time - lemm.ee

“I found it very weird that there essentially is no way to browse the web in an open manner. So that’s what I am trying to build,” the founder of Stract said.

The open source SearXNG is good enough for me so far. Any reason to switch to Stract ?

Stract and SearXNG are two entirely different projects. SearXNG is just using other search engines to power itself - it’s known as a meta search engine. Stract has its own index that does not use other search engines to power itself.
If Stract is any good, it would be nice combo to make it work in SearXNG.