Thank you, integration with activitypub is what i was after!

Software:

• firewall, no inbound and do outbound restrictions
• use immutable OS
• full disk encryption (keep in mind that in many setups you will need to be beside the computer after restart)

Hardware:

• put it in the trusted datacenter (home stuff is not safe from teenagers and people that need computer’s electrical socket for a vacuum cleaner)

Indeed, well:

• SearxNG is a meta search engine, can aggregate search results from a ton of other search engines (like DDG, Google, Bing, … and a lot more)
• Whoogle, looks like a proxy to Google

Hey, I do not think that this is off topic at all. My instance is matejc.com