diff --git a/index.gph.sh b/index.gph.sh
index 7c1d528..b2cf6f8 100755
--- a/index.gph.sh
+++ b/index.gph.sh
@@ -98,9 +98,16 @@ I'm also a computer scientist.  By day I work as a programmer in a Danish
 software company.
 
 I attend BornHack every year.  Can recommend!
-
 $(link_www 'BornHack: a 7 day outdoor hacker tent camp in Denmark' 'http://bornhack.dk')
 
+I use NixOS as my operating system on both my laptop and my servers.  I think
+it's nice!
+$(link_www 'NixOS: Reproducible builds and deployments' 'https://nixos.org/')
+
+This gopherhole uses geomyidae as its Gopher daemon, configured in Nix:
+$(link_www 'Nix systemd service wrapper for geomyidae' 'https://github.com/nqpz/nielx/blob/master/nielx/geomyidae.nix')
+$(link_www 'Nix'"'"' declarative requirements for building my gopherhole' 'https://git.metanohi.name/ngws/metanohi-gopher/src/branch/main/shell.nix')
+
 
 $(header Cool links)