diff --git a/README.md b/README.md
index 970b805..d254078 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,8 @@ Has some problems: https://github.com/lexbailey/compilerfax/blob/main/hylafax_is
 ## Operating Systems
 Unfortunately this software stack uses a lot of legacy software. Because of this, this guide was only tested on specific software versions
 
+If using NixOS, you may be able to use https://git.dergrimm.net/dergrimm/t38modem.
+
 ### Debian 12 Bookworm
 For Debian 12, we'll only install dependencies which are hard requirements.
 For this guide we'll use ptlib 2.18.6 and opal 3.18.6.