Small tech (rather, small sustainable projects that won't sell out)
Pest (a peer-to-peer encrypted IRC-like network)
carp-lang/Carp: A statically typed lisp, without a GC, for real-time applications.
NNCP (network to network copy protocol)
Heterodox Technology is a link log about alternatives to the Windows / Intel / ARM / Android / MacOS / HTTPS status quo.