Link that sounds fascinating to me: https://gun.eco/
I'm currently looking through the projects NLNet funds, and I recognize the names Magic Wormhole and DIME. Interesting stuff! Also Searx.
Here's the page I'm looking through: https://nlnet.nl/project/current.html
Other ones: http://www.secushare.org/ and http://sockethub.org/
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).